ML092600515

From kanterella
Jump to navigation Jump to search
L5-04GA440 (0), SO23-617-1-M1415, Rev. 0, San Onofre, Units 2 & 3 - Replacement Steam Generators Divider Plate Weld Joint Separation Root Cause Evaluation Report. Pages 101 Through 145
ML092600515
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 09/10/2009
From:
Mitsubishi Heavy Industries, Ltd
To:
Office of Nuclear Reactor Regulation
References
L5-04GA440 (0), SO23-617-1-M1415, Rev 0
Download: ML092600515 (45)


Text

{{#Wiki_filter:(A-48) (A-48) Document No.L5-04GA440 No.LS-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~~ A ' AnEh~n~A Attachment-A Lawai Low alloy stee I loy steel Measurement line Measurement I ine of hardness hardness

                                    ~usion  Fusion boundary boundary 600 r-                I I

I--- 1-----+ 152 buttering

         ,......      500 500                 -4                -           -~-

Ln I d I I 400 I en en

4) 4~

Q) c C

          -c          300 300 L
             <1l t                                                      ...
          ..c en L

Q) 200 200 -.,--

                                                                                        ...              ~
          ..::r::.                          I u                              I
> I 100 100 t-I I

I , o 0 I I I

                            -2
                            -2            0o               22                  4              6        8       10          12        14 yLDistance Distance from fusion                  fusion boundary       (mm) boundary (mm)
                                                               ** Testing load is 2g at the distance between -0.                       05 to 0.
                                                                                                                                   -0.05         15nrn O. 15mnm 600 600 1       Enlarged Enlarged
                                                '--v I -----+             152      buttering 152 butter        i ng I
   §    500 I------ ~-Wfilt 500                                             c:e:-::-

zo::-cn:-::-e--------- P

                                            . White-zone
   ~

400 I n

> 400 -
   ~                           LAS LAS:

C c: 300 300 n---~-t----I,--------

    ~
    ~
    .2
    ~

200 _ _ ._ _ I

                                  ~!_         -l- ---

I-I

  • i
  • 5 100 100 r---'-- I o0
                -0 3.05
                -0,05                          o0                                 05 0.05                   0.1 0,1 Distance Di stance from fusion boundary      boundary (mm(mm))

Fig. Fig. A.24(1) A.24 (1) Vickers Vickers hardness of cross section of sample B (152 (152 buttering) MITSUBISHI MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 101 101 of 484 SO23-617-1-M14 L15,, Rev. S023-617-1-M1415 Rev . 0

(A-49) Document No.LS-04GA440 No.L5-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ ~ JA A~chmen~A Attachment-A 1I Enl ",ed Enlarged l'. le

                                           -' -. .. .25 .                    ..,.
  • 277
                                                            ,8...                                                .. 247                                .-
                                           .. .. 248:
                     '4'
                                                                           ' +                                                                        <

248 : " 234 . S234, (

           "             *   ~
                                                                                                            .1
  • 250
                                                                                                               ~
                                                   '..266-1
                                                ~
                                                                             *,    250
                                                                              . .250"
                                                                                   "             "                                              f
                                                                     .                              .,;  ~ ..
  • 239 239 A
                 ,    ,                             * * ~~50             "
  • 251
                                                                                            ...- '.        J.... .~ 245                 *  /   I    I I ',

white zn 238 " "oJ *" 2*8

  • 298 9
                       "                                                                                              254
                                                                                         .                       (;>

AX 410

                                                                                                                                 .  *35
             ~1          ~39      I'm              ' 334'                                    ..

J...

  • 3115 "'" :3L~ ' ' "
                                                                                                                 .. ' <rn    /
  • I 269 Z69 3.05 305
       ~      *
1. - lAS - .
                                                                            ~~~ii;                                          10 3Y5 214     231 204 ' -r 239-;

214 20 rnm J Load:2g Fig. A. Fig. 24 (2) Vickers

             ~ 24(2)       Vickers hardness hardness of     of cross cros s section sect ion of     of sample sample B             B (152 (152 buttering)(Continued) buttering) (Continued)

MITSUBISHI MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 102 102 of 484 484 S023-617-1-M1415 , Rev. 00 S023-617-1-M1415

(A-50) (A-50) Document No.LS-0-lG A440 (0) No.L5-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~~ Ak AttKhmen~A Attachment-A Measurement Ilineine of hardness White zonezone T-FusionFusion boundary boundary 600 1

                                                             -o           Low aalloy II oy stee steelI 500      -

l!? I .~ 0 Ir 400 - (/)

                                                             ~~

(/) Q) C c

                       -0         300 300
                                                            ~
                                                                           ~ ......

III L oJ: (/)

                                                        ~~

Q) 200 - W'

                        ~                                  I
                          <..l                             I I

100 1 - - - -1 I I I , , , , 0-0

                                        -2
                                        -2               o0             2            4         6         88        10        12      14 y

LTJ Distance from fusion boundary (mm) Distance from fusion boundary (mm)

                                                                             ** Testing Testing load load isis 2g  at the 2g at   the distance distance between    -0.05 to 0.15mm between -0.05      O. 15mm 600 600 1     Enlarged
                                              '------.        Low alloy Low     al loy steel I-i-~. _____
                                                   -o

@ 500 o qq 4 00 - A -r83.T. . .. "'k o I 400 400 - - 54 500

  '"                                  11 :

i te zor-fe-zone 30 _-----.Wb

g'" ~300 Yh~tte
~

300 I I *

.s:                                _ _ L_
  .,~ S200 200   -

I I? u I

> 100 _ I -

I I 0 o

           -0.05
           -0.05                             0o                         0.05 0.05                   0.1 0.1 Distance Distance fromfrom fusion fusion boundary boundary (mm)(mm )

Load:2g Load :2g Fig. Fi g. A.25 A.25 Vickers Vi ckers hardness hard ness of cross section section ofof sample B B (Low (Lawaialloy loy steel channel channel head) head) MITSUBISHI MITSUBlSHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. Page 103103 of 484 484 S023-617-1-M1415, S023-617-1-M1415 , Rev. Rev . 00

(A-51 (A-51) ) Document No.L5-04GA440 Document No.L5-04GA440 (0) (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ Att~hmen~A )* Attachment-A Location Loc ation A A ( 230:

                                                                                  *234 236.

1' 2298 01, I ; '; L" . .. 1. 246~  ;~25Z

                                                          ~Z5 I  224 2518,
                                                                  - 17  52                                  ,    '{
                                                                               -'387                       "

1' The location location hardness-tested hardness-tested ojz.L322 0 Load:2g Load'2g Locat Locationion A' A' LAS LAS The location location hardness-tested Load Load:2g :2g A.26 (I) Fig. A.26(1) Vickers hardness of cross sectionsection of sample B MITSUBISHI HEAVY MITSUBISHI HEAVY INDUSTRIES, INDUSTRIES, LTD.LTD. Page,104 P~ge , 104 of 484 of.484 S023-617-1-M1415, S02~-6j7-1-M1415 , Rev. 0

(A-52) (A-52) Document No.L5-04GA440 (0) (0) __________________ ~==========~-~ AttKhmen~A )I Attachment-A The location hardness-tested The location hardness-tested Location Location B Location C

                        ~218 218 "259 t
                                                                                                .  \

B f 251

                                                                                                                      '251 f
                                       +244
                                        -*244         It                                                     232
                      ,,215 215                        I *
                                                                                                . -226 226
  • 263 . 242
                                       * .240 240 t\  ,                                        . I"249 249 "242 218
                        ~218                                                                    ;2Az 252 1                                                A
                                                                                                                                  'U
  • 22 2299 252 a
                 .                                 !             . J
                                                                                   *"                        276.
                ~

240246, 2~ '. 1, ;ft-245

                                                                                              ~~245                      3         'N
                       '.       246
                                                                                                           ' Z6~  .
                                                                                                                     -' 238'          'as
                                      , 229               ~

229 .,." ~~244

                                                                                               ,, 244, ~6
                      *-234A4 234
                              +249

[

                                              ..                                   *  ,                      ".. : ,~ 238
                                                                                                                                                    '.5
                                                                                                          .' 255                              X\
  • 259 r 255ý ' rr
                                                 !            /

r

                                                                          " .. . , *f The results of           hardnesss test (152 of hardnes                    (152 buttering buttering side)   side)                      Load Load:2g :2g Location Locat ion B'                                                                Locat Location ion C' C' Th e results of hardness The                    hardness test    test (LAS (LAS Channel Channel head    head side) side)                   Load :2g Load:2g Fig.

Fi g. A.26(2) A. 26 (2) Vickers Vickers hardness hardness of cross section section of sample sampl e BB (Continued) (Continued)

- - - - - - - - - - - - MITSUBISHI           MITSUBISHI HEAVY      HEAVY INDUSTRIES, INDUSTRIES. LTD. LTD.

Page Page 105105 ofof 484 484 S023-617-1-M1 415 , Rev. S023-617-1-M1415, Rev. 00

(A-53)) (A-53 Document No.L5-04GA440 (0) Document No.L5-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~~-~ . Att~menGA it Attachment-A LAS LAS \White zone White zone ~ 4 \. direct i on Talysis direction Resin Low aalloy II oy steel White zone zone 152 buttering butter ing

                        ----~.~.4-----------------------_+                   **4--------------_+**4-----------

Ch- B-I Au LIFI I I I I I I I I I I I Fe 6000 4000 4000 2000 2000 Fe mm 0o = 0.00 10.02I 1 1 10.041 1 1 0.06 0.08 0.10

0. 10 0. 12 0.12 ChS ChS 6000 hHH"j PETJ PETJ I I I I I I I I I I Cr 4000 2000 2000 Cr 0 01 80 O0 I i i I i a I mm mm 0.00 8.02 0.02 0.04 0.06 0.138 0.08 0.10 0.10 0.12
0. 12 Ch3 LlFH LIFH Ni N1 I I I I I j I I I I I I I 6000 6000 I.-

3000

                                                                                       /

NiMM0 Ni mm 00 13.013 0.02 0.04 0.06 13.06 0.08 13.08 0. 10 13.10 0. 12 B. 12 _J_ (h4 Ch4 L LOE2H C 80 81313

                                 ~      Effect of resin in crack
                                   -- Effect of resin in crack 40 4013 C           8C        l      it      I     I      ,I     I I                I          l J I ,

mrn mm 0.02 0.06 0.08 0. 10 The result of C is for reference. The sample sample was evaporation evaporation coated with Au. Au. Fig. A.27A.27 EPMA line I ine analysis of cross section section of sample B (152 buttering) Page 106 106 of 484 484 S023-617-1-M1415, S023-617-1-M1415 , Rev 0 Rev.. 0

(A-54) (A-54) Document No.L5-04GA440 No. LS-04GA440 (0) (0) ___________152 ~~=-~--~-~~----------~. A rt~hme~A buttering lb2 buttering4. LAS jW Attachment-A 152 Analysis direction Resin Resin butter ing buttering LAS LAS

                                  ~    4          ~  4
    -h2 B-Au Ch2 LIF LIF
     'e Fe         60
                       - I I I            I      111111111                             I I I     I    I I I       -

6808 ~ _ _ ~ __ ~M~

                                        ~.,..,

4008 4000 - (I'

                                      /

{ 2000 - {t

                    *r J/                I                             I             I Fe FeMM mm U
                     .00          0.02 0.82 I   I 8.04 0.64           0. 06 0.06 I

6.88 0.88 0.10

0. 16 0.12
0. 12 Ch5 ChS 1600 PET J PETJ Cr Cr 1200 880 400 Crmm Crmm 0.132 13.04 0. 06 8.08 8. 113 8.12 Ch3 2006 2000 LIFH Nl Ni 1000 Ni Ni 6 mm mm 0.00 0.02 6.64 .06 0.0H. 10 0.12 Ch-i CM LOE2H I I C 880 Effect of resin in crack 4130 C

mm 0.60 6.62 6.64 M6ID 0. 0. 10 6. 12 The result The result of C is for reference. ref erence. The The sample sample was evaporation coated with Au. Au. Fig. A A.28

          .28 EPMA Iline ine ana   lys is of cross section analysis                   secti on of sampl samplee B B (Low   a lloy st (Low alloy     ee l channel steel     channe l head)

Page 107 of 484 484 S023-617-1-M1415 S023-617-1-M1415,, Rev Rev.. 0

(A-55) (A-55) Document Docume No.L5-04GA440 nt No.L5 lGA-+40 (0) _______________________________ ~ Ak A nKhmen ~ A Attachment-A Table A . 4 The results of, A.4 of EPMA semi-qual itative analysis (wt semi-qualitative .%) (wt.%) AI Al Si Si Ti Cr Mn Fe Ni Nb Mo Mo A: 4th 4`h layer O. 0.22 0.4 -- 30.1 4. 4.77 8. 8 8.8 54. 54.66 1.3 -- Sample B Sample B B: 1't layer 0.3 0.4 0.2 23.1 3.77 30.33 B: 1'1 layer O. 3 0. 4 O .2 23.1 3. 30. 41.00

41. 1.0 1.0 --

(152 (152 butter ing) buttering) C: C: LAS basbasee metal - O0.3

                                                                .3         -       O0.5
                                                                                     .5       1.4 1.4      96.9 96.9        1.0 1.0           -             -

152 weld weld metal** metal** 0.11 0.27 0.1 29. 57 0.27 0.27 10. 10.1 1 59. 6 59.6 1. 1.61 61 O . 01 0.01 C .-\ ,8 C B ) 0.11 0.27 0. 1 29.57 Sample B (Low (Low Alloy D: D: LAS base meta metall - O .3 0.3 - O.3 0.3 1.8 95. 95.88 1.1.11 - O 0.7 .7 Stee Steel)I) Low alloy al loy steel** - 0.24

0. 24 - 0.19
0. 19 1.1.38 38 Bal.I.

Ba 0.88

0. 88 -- -
  • The value obtainedobtained by semi-quantitative semi-quantitative analysis was was for reference because the effect of background background and superposition X-ray were were not considered.
     ** The value valuess in  in certification certification sheet of the material. material .

Low aalII oy oy A:4 th laver 152 buttering 152 7 t steel metal C: LAS base metal C: T Resin i Enlarged Enlarged

                                                                         ~                                                                     Resin Fu sion Fusion boundary boundary Anal yzed point(152 Analyzed      point(152 buttering) buttering)

Analy zed point Analyzed point of adherent adherent layerlayer Fu sion boundary Fusion boundary Analyzed point (Low Analyzed (Low alloy al loy steel) steel ) MITSUBISHI MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. Page Page 108108 of 484 484 S023-617-1 -M1415 , Rev. 00 S023-617-1-M1415,

(A-56) (A-56) Document No.L5-04GA440 No .L5-04GA440 (0) (0)

--------------------~B~-----------~                                               )k Att~hmen~A Attachment-A B

Top II D Stainless steel clad ad C Bottom Bottom LAS Channel head D D E ii UT indication Electron Discharge Electron Machined Surface Discharge Machined Surface (Direction A) (Direction A) Center of Center Channel Head Channel Head Surface of stainless steel clad (direction B) Center of of Center of Center indicat UT indicat 2i I 1:i 2 i Center of Channel HeadHead Electron Electron Discharge Machined Surface (Direct ion D Surface(Direction ) D) FigA29 Fig.A.29 Appearance Appearance of sample C HEAVY INDUSTRIES, MITSUBISHI HEAVY INDUSTRIES, LTD. LTD. Page 109 of 484 S023-617-1-M1415, S023-E517-1-M1415, Rev Rev.. 0

Cutting Cutt ing Cutting Cutting s:::

=I C,,

(f) c: C CO

~

Cn (f)

!; B m

I

x:

}> z

~

U D Surface after Surface sampling after sampling n z o c: Cn (f)

--t
~

M, TP C-1 C- l

                                                              \

Cutting Cutting TP P-9 TP C-2 CXLAS LAS Channel Channel head m Surface after Surface after sampling sampling (f) r--t o Cutting Stainless steel clad 3rrrn L=J U 3nm D Fracture surface (stainless clad, Fracture Direction D) from Direction clad. from D) Fracture surface Fracture surface (LAS, Direction B) (LAS. from Direction B) CD'-- Fig. A. 30 Appearance Fig.A.30 surface of TP C-1 Appearance of fracture surface and C-2 C-l and sample C C-2 sample C >t 110 of 484 Page 110 Page S023-617-1-M1415 , Rev. S023-617-1-M1415, Rev . 0

(A-58) (A-58) Forced fracture Forced fracture surface surface Cutti ng Document No.L5-04GA440 I Document No.L5-04GA440 (0) (0)

                                       ~~~~fir§~jiw.J.:., -"'-"- ~________ "~ Attachment-A            Attachment-A 3mm 31TTTI Detai I observation Detail  observation of of Location Location AA
                  .L    tniargea                                                    Enlarged IrlIdrýgu                                          .L cniargeu Dendrite-boundary-I ike Dendrite-boundary-I        pattern ke pattern                      Quasi-cleavage fracture surface Quasi-cleavage Fig.A.31(l)

Fig. A. 31 (1) SEM observation of fracture surface of TP C-1 C-l(sample (sample C) C) MITSUBISHI HEAVY MITSUBISHI HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 111 of 484 S023-617-1-M141 5,, Rev S023-617-1-M1415 Rev.. 0

Forced fracture surface (A-59) Forced fracture surface C tt ' Cutting Document No.L5-04GA440 (A-59) (0) u I ng Document No.L5-04GA440 (0)

                             ~-:-=------:--:":"-I4i~~i==i:-______ ;... Attachment-A     )'      Attachment-A 31T1TI Deta i I observation of Location B Detail
               . Lnlarged                                                   Enlarged
                              ~ Enlarged Enlarged                                       ~   Enlarged Quasi-cleavage fracture uuasi-cieavage   Traciure surface surTace                    Dendrite-boundary-like Dendrite-boundary-I ike pattern A.31 Fig. A. 31(2)

(2) observation of fracture SEM observation fracture surface surface of TP C-1 (sample C C-i(sample ) (Continued) C)(Continued) MITSUBISHI INDUSTRIES, LTD. MITSUBISHI HEAVY INDUSTRIES, Page 112 of 484 S023-617-1-M1415, , Rev. S023-617-1-M1415 Rev . 0

(A-60) (A-60) Document Doc ument No.L5-04GA440 o.L5-04GA440 (0) (0)

                                                     ---------------.J...                )'       Attachment-A Attachment-A UT indication Macroscopic structure Macroscopic   structure of sample sample C C

(TP C-3) (TP C-3) Stainless steel Stainless steel clad UT indication UT indicat ion

                                           /

Enlarged Enlarged Enlarged Enlarged

                                                                                                         .":         .- I
                                                                                                          /     ~-:: .... ;
                                                                                                     ".Ir..t"~""l '   J 2Qztm_                                  ¢ -

(. -.... ',.....

                                                                                                            ~

I

                                                                                                                              \

Fig. A. 32 Fig.A. (1) Micro-structure ob 32(1) servation of cross section of sample C observation

  -----------                                             INDUSTRIES, LTD.

MITSUBISHI HEAVY INDUSTRIES. Page 113 of of 484 484 S023-617-1-M1415,, Rev. 0 S023-617-1-M1415

(A-61) (A-61) Document No No.L5-04GA440

                                                                                                                          .L5-04GA440 (0) location C of location             .      Attachment-A Attachment-A
                                                                  -    Oetai I observation Detail    observation of                 C UT indication Oetai DetailI observation of location B
                                                                     ..d .. \
                    ...      16
                                         .I
                                 );p: , , .

niargea

                                                         \~                                                                   Enlarged
       '(
        ~":
'1: [L -..,. ~- .
         \
                                                           \,
                                                                                         ,  }:/
                ,J I
                                         ,       ~
                                                      \
                                                                         '~             f I-V
                                                                                               /I
                                                                                                                    !*K
                                                                                                }
                                                                                ~,

N, N

                                                                                      \
                                                                                      ~

(l

                                                                                   \..                                                  *
                                                                                    '1 j

20gm Fig. Fig. A. 32(2) A. 32 (2) Micro-structure Micro-structure observation of cross cross section section of sample C (Continued) C (Continued) Page 114 of 484 S023-617-1-M1415, , Rev. 0 S023-617-1-M1415

(A-62) (A-62) Document Document No.LS-04GA440 (0) No.L5-04GA440 (0) ______________ ~

  • Attachment-A UT indication Detai DetailI observation observation of location 0D Detai DetailI observation observation of location E E I - I I I
                         +    tnlarged                                        t+    Enlarged tniargea f
                                                                                            .1
                                           -                                             I, Enlarged                                        +     tnlarged
                                                            \   \

I

                                                                                                             ~

I-4 7,r~ ~ ZPAu- .~4. Fig. A.32 Fig.A. 32(3) (3) Micro-structure observation of cros Micro-structure crosss section of sample sample C C (Continued) (Continued) MITSUBISHI MITSUBISHI HEAVY INDUSTRIES, INDUSTRIES, LTD. Page 115 115 of 484 S023-617-1-M1415, S023-617-1-M1415, Rev. 0

(A -63 ) (A-63) Document NO.LS -04GA440 (0) No.L5-04GA440 (0) ________________________________________________________________________ ~ mt Attachment-Attachment-A A UT indication DetailI observation Detai observation of location 0D Detai DetailI observation of location E (Stainless steel weld metal)metal ) (LAS) (LAS)

           .  (,    ..'
           ': ?

v ( 1 10011 --

                                                                                                                    /

c 4

                            ý\.
 /     ..               t

( A Fi g. A.32(4) Fig.A.32(4) Micro-st ruc ture observation Micro-structure obse rva t ion of cross cr oss section sect ion of of sample sample CC (Continued) (Continued) MITSUBISHI MITSUBISHI HEAVYHEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page Page 116116 of 484 484 S023-617-1-M1415, S023-617-1-M1415. Rev. Rev . 0

(A-64) (A-64) Document No.L5 -04G A440 (0) No.L5-04GA440 (0) ________________________________ ~ Ak AttKhmen~A Attachment-A Stainless steel clad UT indication I LAS 1* 600 600 I LAS LAS 4 I L Stainless

                                                                                                         ~    Sta i n less I

G 500 500 stee steell clad 60 I 400 (J~ (/J 4)1 (/J

                   <I.J C
                 -c~

C\l 300 300 *

                -z
                 ..c U,

(/J

                   ~

C,

                   <I.J
                 .Of:.

0() 200 I

> I 100 100
I
                                                                                                 -r-00
                            -15
                            -15                -10
                                               -10                       -5
                                                                         -5                       o 0                      55                   10 Distance Distance from fusion boundary          boundary (mm)    (mm )

1741

                                                             ,  I                               y
                                                                \
            ~
  • 174 S227 227
  • 238 238 1'212
i. 212
                                        . 2.3i, 231
                                                   ,221
  • 221' A231,239
  • 239 245t' 1 En l arged IEnlarged Crack 231
  • 245 600 600 i
                             *240 240     -253       -259                                                        LAS
  • 253 259 N 5000 500 LAS
                                                                                                 - - -=-:..:' - - - -
                                                                                                                          .4-r-.~

4 V - Sta i n less Stainless

                             .276
                              , 276     -274       -285                       0 0

0 steel clad steel 0

    *,*297                                30-                                 :>                                                  I.
  • 297 29 7>

I

                                                                                 ~

400 I

                                                                                 ~

0 I

                                                                                 ~

300 ------ - -r:

                                                                               ~
                                                                                    -~300
              .367 -383 * . ~ * ~                              a                                         ~m~4 452 484 492 4,6                                   .!::
                                                                                 ~  5 200 200 0
                                                                                                         ~I                             - -       _----+
  • 200 *"2111( .
  • 205 2~'::' l- ' ~
                                                                               '"u                                                  I

_L _ _ _ __

  • 207 +193 -193
  • 212" 212: $~?", '> 00 1100 I .
                                                               ,:                                                                   I
                             *223
  • 223 . 215
                                        -215     .
  • 222,
                                                    °222         l,lf"'"                 0
                                                                                           -0.15
                                                                                           -0.15         -0.1
                                                                                                         -0.1      -0.05
                                                                                                                   -0.05           o0        0.05 0.05         0.1 01      0.15
  • 235 -223. -*
                             -235                                * ,                                           Distance from fusion Distance        fusion boundary boundary (mm:

(mm )

                             -23a
  • 239 21568
  • 23t Fig.

Fig. A.33(1) A. 33 (1) Vickers Vicker s hardness hardness of cross cross sectionsection of sample sample C C MITSUBISHI MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES. LTD. Page Page 117 117 of 484 SO23-61 S023-617-1-M1415 7-1-M1415,, Rev. Rev . 0

(A-6S) (A-65) Document No.L5-04GA440 (0) Document No.LS-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ A"~hmen~A )k Attachment-A Stainless steel clad UT indication indicat ion LAS LAS 600 LAS

                                                                                                  ~-              - ~   Stainless Stainless 500                                                                             j in                                                                                                       steel clad 80 IJ:

400 400

                    <J)

(0

                    <J)
                                                             .. . . ...r~~...-. ....

Q)

                'E cC (U

300 300

  • L ________ _________

L C0

                    <J) 02 Q)
                 .::s<     200 200
                                                       .....    / a.

C-) () 100 100 , 0 '.

                                 -15
                                 -15                       -10
                                                            -10                      -5                     0o                       5                   10 Distance Distance from fusion boundary boun dary (mm)   (mm)
  • 214 .

y

                                              , 205 205
                        - 198 198
  • 206 217, 217.
  • 23>2 232 I
  • 206
  • 208 1I Enlarged Enlarged 210 210 \
                                                                                                                                         +4- ,,

500

                                                                   , 230 230 '
                                                                                \                 600
  • 195 LAS ~ ~ Stainless
  • 206
  • 245 500
  • 272 '"g steel
                                                                                                                                                 !\         ste.. el clad 500 ci
  • 226
  • 238
  • 264 264 354
  • 264
                                                                   .312 . 338338 I

400 400 300 300

                                                                                                                                                 ,    ~
                        .428~                                                               ~                                                           1 ~r~-
.~ sot .~98 4~S 444
            ~
                        ~ 210 210
                                      ;.; * '334 432 444 46-4 ;Q3-§Q3:.~~
                                            . 205 205             *,197 4.57 197
                                                                                            ~

200 200

                                                                                                   > 00 100
                                                                                                                      ---           ~

I - 212,

                                             ~ 207                '* 214 214 t                            0 225                                         '('L                            -0.15
                                                                                                        -0.15          -0.1
                                                                                                                       -0. 1       -0.05
                                                                                                                                   -005          0          0.05 0.05         0 .1 0.1      0. 15 0
                                             "1199 199              " 230 230                                                       Distance from Distance   from fus ion boundary fusion  boundary (mm)

(,-) 1.98

                                                 ~.1.,! . *,J.1~i"                ; ,,~
  • 198 229
                        .~ 229              *211                     ,
                                        --  ..                        ..'~ <Il~
                          ":j 'Yo.
  • 233
                                         .' ~1}~.~' 22~' . ..
                                                 ~J.7~ ';: ~ 234
                                             *.'211.                  ~34 /.~~/

Fig. Fi g. A. A.33 33(2) (2) Vickers hardness hardnes s of cross section of sample C (Continued) (Continued) MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 118 of 484 S023-617-1-F S023-617-1 -M 141 5, Rev. 0 01415,

(A-66) Document No.L5-04GA440 (0) A- Attachment-A

     *            *         *            *          *            *                   ('.t
                                                                                       )        t>    I         .:I      ;;

Analyzed pos it position in l.-x "-I cross sect section

                                                                                                           . ".l ion Sta     inless steel clad Stainless Sta in less steel clad Stainless                                  Cr ack // (Co Crack                  Ior ed zone)

(Colored zone) LAS LAS IN*---*1-

                                                                               .~.

C-l Au Ch2 C-1 Au LIF LIF '-'--'--'--'-'--'--'--'-'--'--'--'-'--.--.-'r-.--.--.-~ Fe Fe I I I I I I i I I I I i i I I I - 6888

                                                                                         ./"...,..""".......~.....~'~.,.,........,...~

4888 4000 --".."...~~..,.,...,--.,...........~r-.( 21388 2000 Fe 80 I I I I I i i i I I I I I mm 0. 00 8.88 8.85 0. 10 8.18 0. 15 8.15 0.20

h5 Ch5 PETJJ PET 6888 I I I I I I I I I I I I I I I I I I I
r Cr
          ,4000 r
          'l888
                  *__ I L
                         ""'V*

I __I

                                         '*''~I~~.

II I I I I 28881- ~ Crol Cr 8 I I I I I I I I I I I

                                                                                       \.                            1 mm mm     13.08
0. 00 8.135 0. 18
8. 10 R.

0.1515 8.28

=                 I Ch3
-h3

,IFH L1FH NI I I I I I i I I I I I Nij Ni I I I I I I I I I mm mm 0160 0. 10 0. 15 0.20 Ch4 LDE2H CC 888 Effect Effect of of resin resin in in crack crack ~ 48 8 Ifr\ 7/I'~IJVi~"W~'ttI'1t~:..ty.~~"'~"~W~'y...r '( ~....~~\";.h'I'f....~",,f'>>i'1" C O1m 0.00 0.05 I6. 0.10 0.115 0. 20 The result of C is for reference. reference. The sample was evaporation evaporation coated with Au. Au. Fig.A.34(1) Fig.A.34(1) EPMA line analysis analysis of Cross Section of sample C Page 119 of 484 S023-617-1-M1415, S023-617-1-M1415 , Rev.Rev . 0

(A-67) (A-67) Document No.L5-04GA440 (0) Document No.LS-04GA440 (0)


TI~~~~m~~-~==~=~~E----. Stainless steel clad 4

o LAS

                                                                                           ~ LAS  A              ...... Att~hmen~A

( , Attachment-A R.. Analyzed position Analyzed posit ion In Fn cross section Stainless steel clad Stainless Stainless steel clad (Colored zone) LAS LAS

                      ----------------------------.~                     4             ~~.r_---------------

Ch2 C-2 Au LIF I I I I I Fe 6000 6000 4000 4000 2000 200 0 Fm* 0 I ][ I I [ I I I I I 8.00 0.05 0.10 0.15 0.20

                             -5                                                                                             A-Ch5 ChS PETl PETJ Cr 4000-40 00 2000 mm      0I .00                    0.05                    0. 10                     0. 15                        0.20 Ch3 Ch3 L1FH LIFH Ni Ni Ni        0 mm mm      0.00                     0 . 05                  0 . 10                    0 .1 5                       0.20 0 . 20 Ch4 Ch4 LOE2H                                             I   I                   I        I    F          I    I          I C

( 800 cCp mm MrFl 00 I I I I I I I I

0. 10 F I I I
0. is I F I F 0.20 The res The result ult of C IisS for reference. The The sample was evaporat evaporation ion coated coated with Au Au..

Fig.A.34(2) EPMA line analysis of Cross Section of sample CC (Continued) (Continued) Page 120 of 484 S023-617-1-M1415, , Rev S023-617-1-M1415 Rev.. 0

(A-68) (A-68) Document Document No.L5-04GA440 o.LS-04GA4-W (0) (0) wmjttachment-A ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_ ~naChmen~A steelI Fillet weld Sta inle ss stee Stainless Fillet weld clad C I ' Top D.C _//{/ ----.p- Divider plate Divider plate D D ,..--",---1"'-"-----.:- - - B B I Bottom Bottom q A 1 butter ing

                                                                                             ¢:=J A                   buttering 9004--

90°. -- ----. P15270° 270' L~ter ing

                                          ;                                                     :   ,,,       ...                                    ,              in less
                                       "                                                                                                                          eel clad I'3111   ll    II  .    .   .I  .. 4. I .5  .........

7I . . . ....2 3 4 5 uI d119III .5.. . . . 3 4 Fracture surface (direction A Fracture A)) 6 k 2 3 4 5 6 7 84 fl 2 3 4 5 6 7 0 WU.)1 2 3 4 5 6 a6 9~2 4 5 6 7 a 9j110) J 4, 5 6 7 a 4 irbI, 2 3 Machined surface Machined surface (direction B B)) 90°. -- 90o,-- ----. 270' 270° Surface of 152 butter Surface buttering ing and stain less steel clad stainless cl ad (direction C ) C) dUliII8 uriduu kUir[ULIU1I U) Fig.A.35 Fig.A.35 Appearance Appearance of sample 0 D MITSUBISHI HEAVY MITSUBISHI HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 121 of 484 S023-617-1-M1415, , Rev S023-617-1-M1415 Rev.. 0

                     <.0 (0                                                                                                                                  r'.3 N

q -_j

                                                                                                                                                          -.J       Cl-I to 9q          U1 N)

N 0~ Cl) C LJ OJ I lO 20ram 20mm CD C'O (I) CD I (a) (a) Appearance Appearance of fracture surface (I) m m C,) (I) N  :> rt CD N

5i C'O CD C'O 0.....,

z

 ~        0 C                                                                                                                                                     -C">

CO

 ~        C/l Divider plate                                                   152 buttering                                                                      '"

a..

          -i 22 l \------~~~----{

m COe

         .C/l r
          -i
          ~

Stainless steel clad by ESW Stainless steel Stainless clad by steel clad ESW by ESW / Stainless steel clad by ESW (j) C') oo0C 0

                                                        \\\\x--ý

(') N c W 3 (t~ CD) Q) I

                                                                \   --  Stainless steel clad by SMAW-    *--*                                                                (b
J
                                                                                                                                                                                =
-..j I

4-1 I (b) surface (b) Schematic illustration of fracture surface

~
~

U1 2(~ CD

0 CD Fig.A.36(1) Appearance of fracture surface (Schematic illustration) surface (Schematic

~ 0

152 buttering Stainless clad by steel clad Stainless steel by ES,/ ESW Stainless clad by steel clad Stainless steel ESW by ESW

                                                   \4--     Stainless steel clad by SMAW --

s::

t (J) c%

c

 ""0(Q co ru      0; (Q        ;;

C: CD  ::x::D-0

 -\.

0 m N >> W ~CI)Al 0

 ...... Z
 ~       0 (X)     C (J)
 ~
          --4
         -i
0 m

sn rVr) -44

         -i
         !='

(j) o o(") 0 t:: N W 3 (l> I (J)  ::l

 -\.
 -4                                                                                             V o

I CO

 -\.

I

 ~
 -\.
 ~
-\.

U1 2- 4--- AI CD 5Fig.A.36(2) Fig.A.36(2) Appearance fracture surface Appearance of fracture surface 10mm> 0C)

000 s:

         !:i en (j) cC:

cj CD lJ Cii ru ;S (Q I CD  ::r: I m I\.) >>

 ~
         ~

0 z0

 ~

CO C

 ~       en
        -i
0 mol i'ii (b) Appearance of fracture surface of channel head body after removal of sample (b) Appearance of fracture surface of channel head body after removal of sample S/J r-r
        -i-I 0

Divider plate (f) o o 0I\.) o c: W :3 I Penetration shape of 152 buttering ro en  ;:!

 ---.J                                                            Penetration
                                                                 -Penetrat ion      shape     of                   n rat ion Penet P               shape      o I
 ......       Penetration Penetration     shape       of I

stainless st~clad by stainless steel clad by ESW s:: stainless steel clad by b ESW stainless steeel clad byySMAW ESW

 ~                                                                   Channel head body (J1
0 (c) Schematic illustration channel head body after removal illustration channel sample removal of sample CD
=::

0 Fig.A.37(1) Fig.A.37(1) Appearance channel head body after removal of sample Appearance of fracture surface of channel sample

(A-72) 0 Document NO.LS-04G A440 (0) ___~~~=~~~____~~~~~~~~_________ CD" stainless a)C

  • Att~hmen~A
                               ....                                          C)
               -D 0 C-
                                          *                         ~I 20mm
                                                                                                                                                       ~I                    -=*

Enlarged t...on shape by ESW CIl Appearance of fracture surface of channel head body after removal of sample C. E t'a

                                                                                                                                                                                                       ....0III iij 0

E CIl CIl C1

     -         C                                                                                                                                                                                         iI:

t'a "C 0

                                                                                                                                                                                                          .c
                     -:3                                                                                                                                                                                   "C t'a CIl
                                                                                                                                                                                                           ..c::
                                                                                                                                                                                                            ~

c: c: t'a

                                                                                                                                                                                                             ..c::

rtl17. ....0 Co) CD Center of rt 0 _ Enlarged _#~f~

                                                                                  ~                                          ~;                 " ~~                                                                         CIl
                                  ~~!~~f
-    _                                                                                           ,                                         L' divider plate- ."           ,' ,                                                                                          "                 '~ ~(

Co)

                                      '        0                I                       '            .     '                                                                                                                 t'a 1:
                                                                                                                                                                                                                         =

III CIl

                                                                                                                                                                                                                    =

Co) t'a

                                                                                                                                                                                                              ....            0 CIl Co) c:

t'a t'a CIl Q. Q. N Fig.A.37(2) 4M r::- M

                                                                                                                                                                                                                  ~

Cl u:: MCD

                                                                                        ~1Df l\<<'tr'~~
                                                                                            .l~, L\J .' ~*f~

_ _, . .- _ _ ,'f ' .. Enlarged CL MITSUBISHI HEAVY INDUSTRIES, LTD. Page 125 of 484 S023-617-1-M1415 , Rev . 0

(A-73) (A-73) Document No.L5-04GA440 No.LS-04GA440 (0)(0)

--_ _ _ _ _ _ _ _ _ _ AAýAttachment-A ~A ttachme n t- A S-t-a_nies te~e Iala a Oh- by ESW dad by SMAW Detai flptnilI observation nhRervntinn of IncnAtinn location AA I -A-1 Enlarged ] Enlarged Enlarged I C:_ I boundary like or grain boundary like pattern Dendrite boundary Quasi-cleavage fracture surface Quasi-cleavage surface Fig.A.38(1) SEM observation Fig.A.38(1) observation of fracture surface surface of samplesample D 0 (152 buttering)

- - - - - - - - - - - MITSUBISHI HEAVY INDUSTRIES, MITSUBISHI HEAVY INDUSTRIES, LTD. Page 126126 of 484 S023-617-1-M1415, S023-61 7- 1-M1415, RevRev.. 0

((A-74) A l ) Document o.L5 -04GA440 (0) Document No.L5-04GA440 (0) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_~ttachmen~A A :ttachment-A 3 plflt W2b~t.ýf F~E7 oca . . ..

                                                                                                       \7    olad by SMAW Location for SEM observation (stainless steel clad by SMAW)                        SMAW) notn i II observation Detai     nhzPrx/nt inn of       Innnt i nri B n~f location              R                  Deta         nh_,zrvr~it inn nlptq ii II observat    i on of II ocatnnt inni on C r.

I rl .... J I I:* I ^. *^,.I I C-1I-A Quasi-cleavage Quasi-cleavage fracture fracture surface surface Ductile Ductile fracture fracture surface surface Fig.A.38(2) Fig.A.38(2) SEM SEM observation observation of of fracture fracture surface surface of of sample sample D (Stainless (Stainless steel steel clad clad by by SMAW) SMAW)

 - - - - - - - - - - - MITSUBISHI               MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD.

Page Page 127 127 of of 484 484 S023-617-1-M1415 , Rev. S023-617-1-M1415, Rev . 00

(A-75) (A-7S) Document No.L5-04GA440 Document No.LS-04G (0) A440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~tt~hmen ~Attachment-A

                                                                                                                      ~A 25b t
                                                               -,6We,plate il lnes s see c l adby ESW
                                                                       ýIo bY E W-Location Location for SEM observation                    between 152 buttering and stainless observation (boundary between                                     stainless steel clad Deta Detaii I I observat observationi on of location Iocat ion D 0
                                                    ýa I

T Enlarged Enl.ar; e! .1""", - - Enlarged

                    - ,~,~

Ductile fracture surface surface Fig.A.38(3) Fig.A.38(3) SEM observation observation of fracture surface surface of sample D 0 (boundary between 152 buttering and stainless steel clad by SMAW) SMAW) MITSUBISHI HEAVY MITSUBISHI HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD. Page 128 of 484 S023-617-1-M1415, , Rev. S023-617-1-M1415 Rev . 0

(A-76) (A-76) Documentt No. Documen No.L5-04GA440 L S-0-lGA -l 40 (0) (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _~~ Aj: ttachment-A

                                                                                                        ~~men      ~A D~d~ pI~t 6 ..

1 .. Location -- 1 _ _ 4--- Location for SEM observation (stainless steel clad by by ESW) ESW) Detail Deta observation i I observat i on of Ilocation ocat i on E L-E-1 w -I L-E-2t Enlarged Enlarged Enlarged Dendrite Dendrite boundary boundary like like or grain grain boundary boundary like Quasi-cleavage Quasi-cleavage fracture fracture surface surface Fig.A.38(4) Fig .A.38(4) SEM SEM observation observation of fracture fracture surface surface of of sample sample D 0 (Stainless steel steel clad clad by by ESW) ESW)

 - - - - - - - - - - - MITSUBISHI       MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD.

Page Page 129 129 of 484 484 S023-617-1-M1415, S023-617-1-M1415 , Rev. Rev. 00

(A-77) (A-77) Documnent No.L-5-04GA440 Document o.LS -04GA440 (0) (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ Attachmient-A ~~me n ~A O~,dc~Dial 152W-,*Mml

                                                                                                            "  3  lt3In Location for SEM observation observation (stainless steel clad     clad by ESW)  ESW)

Deta i I observation Detail observat i on of Ilocation ocat i on F ICrack En Iarged ~, Enlarged Enlarged I Enlarged

                ~.             ...
                          ~...;       - *,T
7

_:.... -1" ~-;;. Cr a Crac _______._--_._~~~;_:__: 1 Du ctile fracture surface Ductile surface Fig.A.38(5) SEM observation observation of fracture fracture surface of sample D (boundary (boundary between 152 buttering buttering and stainless steel clad by ESW)

  - - - - - - - - - - - MITSUBISHI        MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD.

Page 130 of 484 S023-617-1-M1415, S023-617-1 -M1415 , Rev Rev.. 0

(A-78) (A-78) Nio.L-5-04GA440 (0) Document No.LS-04GA440 Documnent _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~ttKhm~~ A AL Attachmient-A Divi 152 152 butter i ng buttering Sta in le ss Stainless steel Stainless steel clad by 152 buttering Cross uross section section Tor for ooservatiuon observat ion 20m 2011111 Detai DetailI observed location Detai I observation Detail observation of location A A Detai I observation of location Detail location B MON Enlarged

  • niargea r

lzilargeu Enlarged L I N \

                                                                              . .* , .. Y..
         ,L I,

r/

                                  . I I
                                              ~/
                                                                  \
                                                                    \
                                                                            \ \  .I I

j

                                                                                            \'            Q~oyreq zone 14PI Fig.A.39(1)

Fig.A.39(1) Microstructure observation Microstructure observation of cross section of sample sample 0 D (Stainless steel clad by SMAW)

  - - - - - - - - - - - MITSUBISHI       MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD. LTD.

Page 131 of 484 S023-617-1-M1415, , Rev. S023-617-1-M1415 Rev . 0

(A-79) Document No.LS-04GA440 Document No.L5-04GA440 (0) _~~_~~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ A* ~ n~me n~ A Attachment-A

                                                                                                        -152          152 buttering buttering Stainless Stainless steel clad Sta a Ld in Iri les It:56s stee b Lt:t: lI clad Cross section U I dU 152 buttering                    section for observation           20n 20rrm Detai I          observed Detai DetailI observation of location locat ion 0D Detai DetailI observation observation of location C Stainless Stainless                   byyt \         152 buttering steel clad b ~ 152 buttering Enlarged
                                        + Enlarged
                                                                              //

Crack propagated propagated near near bounda ry between boundary between 152 butter buttering ing and stainless sta i nless stee I cclad. steel Iad . White zon Crack opened widely widely.. Fig.A.39(2) Microstructure observation Microstructure observation of cross section of sample 0 D (152 (152 buttering and boundary between 152 buttering buttering and stainless steel clad)

- - - - - - - - - - - MITSUBISHI                   MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD.

LTD. Page 132 132 of 484 S023-617-1-M1415, S023-617-1-M141 5, Rev Rev.. 0

(A-80) (A-80) Document No.L5-04GA440 Docunient No.L5-04GA440 (0) (0) _ _ _~-~--------------------------~tt~men~A

                                                                                                       )* Attachment-A Divi 152 152 butter i ng buttering Stainless Stainless stee        Iad steelI cclad Stainless     steelI cclad Sta i n l ess stee     I ad       152 buttering                   Gross section for observation2o0mm 152 buttering                   Cross section for obs ervat ion2o~

by ESW\ Detai I obse rved observed Detai DetailI observation observation of location locat ion E Detai DetailI observation observation of locat ion F location E l g + Enlarged

                                                                                                   . ;          "  i
                                                                                         ,-----11 F-7 I   "
                                        + Enlarged Enlarged
                                                                          ..                         Enlarged i
                                                                                                                            .rI I

20um Fig.A.39(3) Fig.A.39(3) Microstructure observation Microstructure observation of cross section section of sample D 0 (Stainless steel clad by ESW)

  - - - - - - - - - - - MITSUBISHI                               INDUSTRIES, LTD.

MITSUBISHI HEAVY INDUSTRIES, LTD. - - - - - - - - - - - Page 133 of 484 S023-617-1-M1415, S023-617-1-M1415 , Rev Rev.. 0

(A-81) Document No.L5-04GA440 (0)

                                                                                               )AA     ttachment-A 152 butte r ing buttering A..

Stainless Stainless steel clad Stainless steel clad 152 buttering observation 20mm for observation Cross section for Detai tailI observed location Detai I observation Detail observation of location location G Detai I observation of location Detail location H Stainless ste~l~ Stainless steelI _ clad c lad by ESW ~ 152 buttering

                                                                                                 ... Enlarged
                                                                                                 ý
                                      ... Enlarged
                                                                                           ... Enlarged between 152 buttering and stainless between                                                              .'

stee steelI clad. c Iad.

                                                                         /         .   ,
                                                                                                                  ; -   J Fig.A.39(4)     Microstructure observation Fig .A.39(4) Microstructure    obse         of cross ssection of sample sam      D (152 buttering buttering and boundary boundary between between 152 buttering and stainless stainless steel clad)
      - - - - - - - - - - - MITSUBISHI                  HEAVY INDUSTRIES, MITSUBISHI HEAVY  INDUSTRIES, LTD.

LTD. Page 134 ofof484 484 S023-617-1-M1415, S023-617-1 -M1415, RevRev.. 0

((A-82) A -82) Documnent No Document No.L5-04GA440

                                                                                                                          .LS-04GA440 (0)     (0)

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~tt~men~

                                                                                                                      )k         Attachmient-AA Di 152 buttering Stainless steel steel clad Stainless steel                   Iro I*.IL     buttering           Cross section for hardness test                      20mm 20mm Line of hardness measurement measurement (Stainless steel clad by SMAW) SMAW) 600
                                          -          ~    Stainless steel clad by SMAW 500 Ln                                                                              AL Load: 500g D.

a

> *0 Load: 2g _

I 400 Lq I vi Ul C1J c 300 300 *

                                      ~~~b-
                     -0 I...

ro

                     -c                                                ~     ~       ~

w, Ul I... C1J 200

                      ~

tl

> 100 100 0

0_ 0y 2 4 6 8 10 12 I Enlarged Distance Distance from crack crack (mm) (mm ) 600 600 1 Enlarged

                   -        * ~    Stainless steel     steel clad by SMAW N       500 500    f--
  • 253 253 . '272 272
  • 305 C

0 C 0 a 6 A D. Load: 500g Load: 500g

> 400
  • 265
  • 298
                                                                                                                 *265        298
  • 286 286
                   ~-

T 400 I

       .,;                                                                 Load : 2g
  • Load:
                                                                        *
  • 254 267
  • 269 254
  • 267 1:

Cc 40 300 300

                            ~.
                                                  ~
                                                                                                     .   ,/
                                                                                                                 ~'\ 265,-

265

  • 285 285 t
  • 285, 285
                                                                                                                                      * , .f   \.
                                                                                                               -~* 316 316 '* 295'
    -C
     ..c.
       ~

200 ~ 334 ' " \ 295 ' 334 U 4) l) 389 35

     ;;     100 100 T7 Q 0o 0o            0.1 0.1              0.2 0.2           0.3 0.3          0.4        0.5 0.5 Distance Distan c e from from crack crack (mm)

(mm ) Fig.A.40(1) Fig.A.40(1) Vickers Vickers hardness hardness of of cross cross section section of sample sample DD (Stainless steel steel clad clad byby SMAW) SMAW)

  - - - - - - - - - - - MITSUBISHI                     MITSUBISHI HEAVY  HEAVY INDUSTRIES, INDUSTRIES. LTD.

LTD. Page 135 Page 135 ofof 484 484 S023-617-1-M1415, S023-617-1-M1415 , Rev. Rev . 00)

(A-83 (A-83)) Document No.L5-04GA440 o.LS-O'+GA440 (0) (0) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~_ ~nachmeru-A ,kAttachment-A 152 butter i ng buttering Stainless steel clad Stainless steel Cross section for hardness test 20mm 20mm 1 -4 A,, CUAW 152 buttering Line of hardness measurementmeasurement (152 (152 butter i ng) buttering) 600 500

  • 152 buttering Load : 500g A Load:
                                                                                                   !:::.        500g GLC)
                                                                                                   ** Load: 2g  2g a

0 I 400 vi U, I-til U) Q) c

                      -c
                         ... 300       I
                      -c ro
                         ... 200 U,

til Q)

                      .::t:.

0()

> 100
                                       'AA    -u-~         u A.  .A
                                                                         ~    ~
                                                                                      .A            Acr./l,_ ~

o 0 o0 5 10 10 15 15 20 20 y Distance from crack (mm) (mm ) 600 600 1 Enlarged Enlarged

                              --..      *. 152 buttering 152    butter i ng
                                                                                                                       *'256. 271 *'271 500 500 256. 271       271 N

0 White zone A '262. 290 297

                                                                      !:::. Load' Load : 500g                                *'262. 290
  • 297 0

5d 7 500g

> 400 400 0 *33&33&. 280 ~ 275 215 I

vi

  • Load, Load : 2g2g c'"
         "c 300 300                                                                                                  J'.
  • 28,6. 340
  • 291 286. 340 291 l'

J:: 200 200

                                                                                                                      *22Jf~.

j I \

                                                                                                                                 'l71'
  • 2~2 2-77 9 * *.
          ~
  • z94 " of I'
       "'""                                                                                                          .                   316
  • e9T I . 310
>" 100 100 00 00 0.1 0.1 0.2 0.2 0.3 0.4 0.5 0.5 Distance Distance from from crack (mm) crack (m m)

Fig.A.40(2) Vickers Vickers hardness hardness of of cross section section of sample D 0 (152 (152 buttering) buttering)

 ~---------- MITSUBISHI                                MITSUBISHI HEAVY HEAVY INDUSTRIES, INDUSTRIES, LTD.

Page Page 136 136 of of 484 S023-617-1-M1415 S023-617-1-M1415 I, Rev. Rev . 00

(A-84 (A-84)) Document NO.L5 Document -04GA440 (0) No.L5-04GA440 (0) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ AkLAttachment-A ~n~ hm en~A Divi 152 152 buttering Stainless Stainless stee c Iad steelI clad Stainless steel cclad la d 152 buttering Cross section Cross section forfor hardness hardness test test 20u__ 20mm Line of hardness hardness measurement measurement (Sta in less steel clad by ESW) (Stainless ESW) 600

  • Sta inless steel clad by ESW Stainless A Load: 500g
                                                                                                     /::,. Load : 500g 500 Ln                                                                             **Load:

Load : 2g2g 0> Im 400 400 Cti (f) Q)

                        -Dc     300
                      "..cl...

I1J LO (f) ~ l... Q) 200 ~ L.ILJ> L.l

                        .:s:.

u

> 100 100 0

0o 2 4 6 8 10 12 y { Distance Distance from crack (mm) (mm) 1 Enlarged 600

  • Stain less steel clad by ESW Stainless ESW .
                                                                                                                        ' 3a42 142
  • 304 NC 500 322 ZColored zone I o

o fIfo Iored zone 351  : 322 322 *- 380 6 /::, A Load: 500g 500g

> 400 353 308 .-
                    ~J.~

I

  • Load:

Load : 2g2g- 365 Ul

         =~ 300                                                                                                234 234       315 315
  • 296
        ~
        .c'~"

1 ~ 291

  • 318 318
  • 293 200 200 Q) 317 u
         > 100100 o0 o0                 0.1 0.1           0.2 0.2           0.3 0.3           0.4          0.5 0.5 from Distance fr om crack    mram) cra c k (mm)

Fig.A.40(3) Vickers Vickers hardness hardness of cross section section of sample D 0 (Stainless steel clad by ESW)

 - - - - - - - - - - - MITSUBISHI                       MITSUBISHI HEAVY   HEAVY INDUSTRIES,       LTD.

INDUSTRIES. LTD. Page 137 of 484 S023-617-1-M1415, S023-617-1-M1415 , Rev. Rev . 0

_ Divider plate Divider et weld Fillet Fill we Id C Stainless steel op 4 , " T Top D

                                     "k -  .....

clad 7ýBB 0 Cl.. ro

           '0 1I Bottom Bottom q

152

                                                             ¢:J 0--
                                                                                                 ,+/-

CDl

                                                                                                      <J1 NJ N

CI (a) Fracture surface (direction A) - C,, LJ '" en ill <.0 CD I m w

      ~

(Xl 0 z0

~    c C:

(Xl C/) CJ) Machined surface maonineu 6uriace (direction kUIreGLIori B)

~     -I
0 iii I--

snH r

     -I
     ~

U) (f) Co o 0(") 0 c: N 0) B r3 W N.) Cr, ro I

0)  :::
-.J I

I s.: 0)

                                                                                                           ~
~
-"                                                                                                         B  ~

U1 0 Machined Machined surface (direction D)D)

u 00 CD C)

Fig.A.41 Fig.A.41 Appearance of sample E 0

                  -C1.

0... CE' 0-0- CD C <..T1 tin ('0 r+ N

                  "'"                                                                                                                         r+
                 '0                                                                                                                           CD s::
       =i C/l C,,

cC cu CD (a) Appearance of fracture (a) Appearance fracture surface surface lJ C/ en ~(D ;E (j) ffim

       }>
~ ~
-D, 8,     §z0 0Divide i v ider  er p Iate plate

.J:>. cC: 152 buttering .J:>. (Xl

      -i
u sn C',

iii C/l 1 I Stainless steel clad by ESW ESW Sta inless steel clad by ESW Stainless j r

      -i c:J Stainless steel clad by SMAW (j)                                                                                                                                                         o C

o C n 0 c tv fracturee surface (b) Schematic illustration of fractur 2 3 <..V C (1) (j) ...... a s: -...j .J:>. H.

                                                                                                                                                        >5 Fig.A.42(1)

Fig.A.42(1) Appearance surface (Schematic illustration) Appearance of fracture surface ~ (Jl CD

u (j) 0

Dividerr plate Divide plate 152 buttering 152 buttering I Il Stainless steel clad by ESVi I Stainless steel Stainless steel clad clad by by ESW ESW Stainless steel Stainless steel clad clad by by ESW ESW Stainless steel Stainless steel clad SMAW clad by SMAW 4-s:::

        =i en LC) c C:

CD

"'U    enCh)

Q) (Q

        ~

('l) I mm

~

0 ~ 0

...... Z 0
~      c ex> en  Cd)
~      -t
0 m

iii mI y> r

       -t c:J ad by ESW We Idi (f)                                                                                                                                    o o

0 () IV c2 (.0 3

                                                                                                                                       ~

(J)

                                                                                                                                       ;?

-..j 5:: ~ U1 2r~ -'~-~

0 7~~OO

('l) 0 Fig.A.42(2) of fracture Appearance of Appearance surface fracture surface

IL N 0)

                           -..J                                                                                                                    (0 Divider   plate Divider plate   oo    4-                                                                                                         ----+. ~

o 152 buttering 152 butter i ng I I

                                                                                          -   -,-->--- - -..                                            I I

L Stainle 3s Stainle s steel clad clad by ESW ~~ ___________ St_a_in_le_s_s_st_e_el_c_l_ad~bY_E_S_W Stainless steel clad by ESW ________~/

s::
       =l CIJ cC:                                          m                Stainless steel steel clad by SMAW w
"U Ui  Cl) ru ~

en (j)

~
~

I m

     >>m
     ~

1 CO 0-0

-+. Z 0
~    C C

()) CIJ C,,

~    -i
     -4i
u iii m

Y'

     ýC/

r

     -i 1;:1 en                                                                                                                                                         U 0

rv 0J, CD 0'> ~ -...j ~

,                                                                                                                                                         =3 s:                                                                                                                                                         z

~ lOmm 10mrn U1 L) 0

u (j) Fig.A.42(3)

Fig.A.42(3) Appearance of fracture surface 0

ividerr plate Divide plate N) 152 buttering 152 butter ing At I

                      ~_______Stainless l                           steel clad by __

S_t_a_i_n_le_s_s_s_t_e_e_l_c_l_a_d_b_Y ES_W__________i==~ ESW =~

                                                                                             ~~,~~.~~~~~~~~~~~~=~~  -~4-i

___________S_t_a_in_l_e_s_s_s_t_ee_l__c_la_d__b~Y_E_S_W__________~// Stainless steel clad by ESW 3: Stainless steel Stainless steel clad by SMAW

           -1i en c

CO ID m

  ""'0 Cii                                                                                             :::s 1I ru ~                                                                                                   0-]

Ql (0 -. CD I O'Q m CD CI>

 .....>. m
          >>                                                                                            n.
 ~
          ~

N 0

 ~

co en

 ~

Z 0 C C-()

          -i
0
          -I iii 0!:n r
          -i c:J (f)Cl)                                                                                                                                                                                              oo0 00                                                                                                                                                                                                   C

(') N N.) c0 v..> I 32

                                                                                                                                                                                                    <1>

0'> o0)  :::l -..j I I 5: ~ ~C) (J1 1OITIm 100m 2(~ 4---~

0 z 0 00 CD(D

~ Fig.A.42(4) Fig.A.42(4) Appearance of fracture surface Appearance 0

Q0 plate Divider plate o:. .4 9 152 butter butteringing Io I

 -U en
        ~
        =i en cC,,
        !D I            Stainless Stainless steel clad by ESW ESW Stainless steel clad by SMAW m
l Ql Stainless ESW Stainless steel clad by ESW 1

C,) ru ~ (Tq to CO CD 02 CD 0...

 ~

w 0

 ...... 0
 ~

(Xl

 ~

M, m (f) oo oIV (") c W 3 I CD (J)  ::l Sma I I chip on bead Small

 --J                                                                                                                                                  2rt1T1 I

I 10mm IOmm >D s;: Fig.A.42(5) Appearance of fracture Appearance surface fracture surface

u CD o

(a) (a) Appearance Appearance of fracture surfacesurface of sample sample

        ~
j en C/,

c ca C: ro

 -u Q)    Cii "l

OJ 2; to CDm I CD

 ~
 ~

om~

       }>

0

 -. 0Z
 ~    C 0>

OD enC,) Appearance of fracture surface of channel head body after removal of sample 50mm

 ~    -9(b)
      -t
u (b) Appearance of fracture surface of channel head body after removal of sample 50mm mrn Sf' rr-
      -t
      ~

_ _--.. N

               <D o

C> 0

                   .. *Divider                                                      Divider plate                                                                   -.J q

U0 (j) 0 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ o o(") 000 NN) 152 butteringb buttering _ _ _ __ _ _ <= VJ 3(1) I oy m Stainle Stainless steell clad by ESW ss stee \'Stainless Stain less steel clad clad by SM Stainless steel clad by ESW ESW  :::J

-..J I

I E Channel head body ~,>

~
 ~
-'                                                                                                  body after    removal of after removal        sample of sample                                      24-->

(J1 (c) Schematic illustration channel head body

;;0 (D

CD

<           5                    Fig.A.43(1)

Fig.A.43(1) Appearance of Appearance surface of channel head of fracture surface removal of head body after removal of sample sample a

0-r"- --i c: r-+

r rl" (1) rl" "C 0 (1)
                                                                      <                                                                            (1)
                                                                '"rl"                                                                        ~
                                                                                                                                                   '"0
             <0 q  ...

(1) a.. (1) * (]Q

                                                                                                                                                   -t, c.n N

CD co:3

        ~                                 Penetration shape by [SW                                  Penetration shape by ESW                     -
                                                                                                                                                  --i
j Pentraio shp APntainsaeb S 50mC n---I
r en cPenetration 030 shape by SMAW (1)

C Penetration shape by SMAW 50mm CD ..., en U U lJ () (1) ru

                                                                                                                                           '"a.. '"0
        ;E U

(Q CD I -t, m CC

 .l:>-
        >>                                     a..                                         M                                  a..                  CD

(/) 0~ r+ rl" (Jl a.. 0

 .l:>-

0>

                                                                                                                                                  ~

(1) (/) en

 .l:>-

m c-Ho p© (J) o o oN 0(") c W 3

                                                                                                                                                         >,C I

Cl>

J (J)
-.j I

I s: 15mm 4

0 C.~~ A 2 CD Fig.A.43(2) Appearance of fracture surface of channel head body after removal of UI Irr;L[ur[ su[aI(e l chi~annilel head body arfer ot sample o U*..* I Ippedaraned}}