ML063050192

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E-MAIL: (PD) Firebar-D Material (Part 2)
ML063050192
Person / Time
Site: Oyster Creek
Issue date: 10/04/2006
From:
Exelon Corp
To: Ashley D
Office of Nuclear Reactor Regulation
References
%dam200611, %dam200612, TAC 8261
Download: ML063050192 (59)
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Text

rlreDar-ii materiai t'age 1 or 1 D. Ashley - Firebar-D material From: <ahmed.ouaou @exeloncorp.com>

To: <DJA1@nrc.gov>

Date: 10/04/2006 6:25:33 PM

Subject:

Firebar-D material CC: <fred.polaski@exeloncorp.com>, <donald.warfel@exeloncorp.com>; <john.hufnagel@exeloncorp.com>

Donnie:

Attached is part 2 of the GE report on Firebar-D.

<<GE Report on corrosion analysis- Part 2.pdf>>

This e-mail and any of its attachments may contain Exelon Corporation proprietary information, which is privileged, confidential, or subject to copyright belonging to the Exelon Corporation family of Companies.

This e-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this e-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this e-mail is strictly prohibited and may be unlawful. If you have received this e-mail in error, please notify the sender immediately and permanently delete the original and any copy of this e-mail and any printout.

Thank You.

file://C:\temp\GW }O0001.HTM 10/21/2006

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Subject:

Firebar-D material Creation Date 10/04/2006 6:24:13 PM From: <ahmed.ouaou @exeloncorm.com>

Created By: ahmed.ouaou @exeloncorm.com Recipients nrc.gov OWGWPO01.HQGWDOO1 DJA1 (D. Ashley) exeloncorp.com john.hufnagel CC donald.warfel CC fred.polaski CC Post Office Route OWGWPOO1 .HQGWDOOI nrc.gov exeloncorp.com Files Size Date & Time MESSAGE 988 04 October, 2006 6:24:13 PM TEXT.htm 1543 GE Report on corrosion analysis- Part 2.pdf 4894671 Mime.822 6703356 Options Expiration Date: None Priority: Standard ReplyRequested: No Return Notification: None Concealed

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-7 TABLE 1 DRYWELL STEEL SPECIFICATION: ASIM: A-212-61T Gr B FIREBOX FINE GRAIN- NORMALIZED CHEMISTRY: C - .23 (TYPICAL) Mn- 1.06 P - .010 S - .023 re Si -. Si

- 75,000 PSI STRENGT: TS-ILE

- 50,000 PSI (TYPICAL) YIELD ELONG - 35%

NOTE: MATERIAL WAS IMPACT TESTED

TABLE 2. GPUN Sand and Firebar-D Leachate Analysis Moist Hoist moist Dry Sand Leachate Sand Leachate Firebar-D* Leachate Bay 11 Drain Sand Leachate Sand UAachate Analytical Bay 11 Drain C 'Plug #1 (19C)

Parameters 1 Hr. 60' C 24 Hra, Room Temp r, 9 0' 1 H(ujl,) 1 Hr, 60" C Plug 02 (15A)

(u25s) I Hr, 60' C (uglg)

Na 777 25 K 25 37 784 25 47 Ca 176 20 37 Hg 30 23 1936 25 47 C 23 Al 30 10 10

- 0.3' 10.5 z23 NI "'1.5 39 d 0.3 0.5 2.3 Fe C 0.3 1.0 ' .33 C 2.3 Cr ~'0.3 5.0 82

  • 0.5 O0.5 8.4 mn c O.3 0.5 4-.33 < 2.3 Pb < 0,5 3.7 0.6 '1.5 < 2.3 Nil 3 (N) < .33 c 2.3 Cl 573 10.5

,NO 3 6.5 45 132 1.5 e:17 93 So4 2850 6

?Q4 4C25 32 28 N.D. N.D. 79 F 14 N.D. N. D.

N.D. N.D. N.D.

TOC 1056 N.D.

Organic Acids 39 37 *46.6 1120 <5 N.D.

Total Sulfur 50 (5 B

Conductivity 588 pH 8.46 7.43 7 58 ,5.99 7.,02 I

Table 3. Test Data Irpreseod Relative to the Wter: or Leachate - GE Moist Moist Dry Insulation Day *7 Truos land Sand Core Plus46 eand A*ea 6 Drywel2 Leachate Scrapings Leachate Sample 03 Core Sample Sand Semple Pipe Leak Leechete Loachato Leoesbte Loechate Water Sample WS6152-86 W3,06153-86 WWS02S1-00 W5#6154-06 WSG*260- 6 W505262-SS W5f6221-06 l14A It A-

  • Leached material ..13.547 (6) 5.6 260.5 247.5 151.2 339.5 Volume of Leoshato CaRL) 35 293 549 .45 539 97 Co-S0 (mC LA) 3. SE-0S Ca-137 (MCiI/L) 6.21-07 7. 1-07 1.62-07 1.61-OS Gross Beta (mCi IL) .98-07 9.31-07 491li07 2..41-06 a49107 1.78-03 Gross Alpha MCui/L) 431-07 430-07 431-07 43$t07 439-07

,441-05 G453-07 Tritium (mCi /L) 442-06 i. 41-04 5.5-06 8.01-03 1

p 8.5 9.9 7.9 7-.6 7.1 6.5 9.6 Conduetivity Cumboslem) 540. 2300. 99. 45. go. 660.

Alkalinity am CeCO (milL) slierbonote 170,.. 110. 44. 23. .24.

9. 260.

C; Carbonate Nydrozide Total 41 I00.

1i.

130. 44. 22.

41 41 24.

41 al 0.0 31.

20 230.

Total Organic Carbon (ae/L) 34. 22. 3.0 3.8 12. 19.

Total Sulfur as 50 (CUSOIL) 60. 680. 7.5 1.4 16. 56.

2.2 Chloride (mi/L) 23. 240. 2. 0.4 0.5 9.0 20.

Fluoride 0.5 0.6 0.1 0.1 0.2 0.4 0.2 Nitrogen. nitrate 5. 0.1 0.4 40.05 40.05 0.06 6.3 (msN/L) 40.04 Nitrogen. Nitrite 0.66 0.13 40.04 40.02 40.04 40. 04 (m0/IL) 40.1 40.1 Phosphate. Ortho C0.1 0Co.1 -0.1 40.1 40.1 (CP/L)

Sulfate 96. 750. 7.4 1.4 1.0 .14. 62.

(mO/L) 7.4 4.8 Potassium 46. 680. 12. 3. 95.

Sodium 36. 220. 8.3 3.5 2. 110.

(maIL)

(milL). 1.3 11.

HManesium (IIIL) 53. 3. 1.7 0.71 5.7 Iron 40.02 40.03 'C0.02 0.14 a0.02 0.27 9.1 (ma/L) 1.7.

Calcium (mS/L) 5.5 7.8 4.9 3.5 1.5 Boron o.80 0.93 0.46 0.074 40.03 0.24 0.92 (maiL) 0.02 0.076 -O. 12 Strontium 0.041 0.004 0.13 ,0.014 6.20 (maiL)

CmelL) 0.16 Aluminum ,0.02 40.03 40.02 cO 032 40.02 Lead (mej/L) 0.042 0.15 -0.03 a0.03 40.03 0.1 40.3 (mailL) 40. 003 4OO03 40.03 Barium 0.096 40.005 0.0037 0.0042 Arsenic 0.035 0.05 40.03 40.03 40.03 40.03 40.3

Table 4.. Calculation of chars. Balances - GE (ion Concentrations in Hill)oquivalenta per Liter)

Insulation say #7 Torus Sand gand Core Plust4 Sand Lioe a Drywall Leachato ScrapinsO Leachate Sample 03 Core eampl. Sand Sample PIp* Leak Leaehate Leachate Leachate Leaebato Water Sample WS#8132-66 vS#6153-16 eseos-4-SS We"6280-66 N"824O1-00 VS#6202-O6 1S 36221-85 lot - 1%A-H I -?#.

0.80 0.46 0.48 0.16 5.2 Bicarbonate 3.4 2.2 Carbonate 0.16 0.33 0.42 0.65 6.8 0.056 0.023 0.014 0.25 0.56 Chloride Fluoride 0.026 0.032 0.0053 0.0053 0.011 60.021 0.011 Nitrate 0.36 0.007 0.029 0.0002 0.45 UltrLto 0.047 0.009 Sulfate 2.0 1i 0.15 0.020 0.021 0.20 1.3-.

Boron as borate 0-.082 0.086 0.042 0.0060 0.02;I. 0.085 Arsenic as arsenate 0.0014 0.0020 Sun ot Anions (no/L) 6., 25. 1.2 0.52 0.53 0.77 6.0 Potassium as 1+ 1.2 17 0.31 0.10 0.12 0.077 2.5 Sodium am No+ 1.6 0.6 0...36 0.15 0.087 0.043 4.8 agnoesium as Me++ 4.4 0.25 0.14 0.058 0.11 0.47 0.801 Iron as Vo++ 0.005 0.0007 0.33 Calcium as Ca++ 0.27 0.30 0.24 0.065 0.17 0.075 0.32 ftrontsum em $r4+ 0.0000 0.0021 0.003 0.0005 0.0017 0.o006 Aluminum as Al+-* 0.018 Lead an ?tb* 0.0004 0.0014 0.001 0.0001 BIrium as Sa++ 0.0014 0.0001 Sum of Cations (nmeL) 7.S .27 1.2 0.49 0.51 0.68 6.9

Table S. Test Data gnpressed eleative to the Sample iWeiabt-GE Insulation say #7 Torus Send Band Core Flusf4 Sand Area 6 8orapings Sample 03 Core Sample land Semple, I~.o IA it At-85 NU63061-00 UrW6202- 68 WS56152-56 W586153-86 WVU6154-85 5504260186 moisture Content Dry 12.62 ý 1.12 2. O6 Dry LZAC A3LI CNARACTZRISTZCS:

Alkalisity 0s CaCO (mg/8) 0.06 0.026 Bicsrbonate 4.5 0.093 .10.086 0.31 0.71 140.002 '0,.003 0.008 -0.003 Carbonate

'0.03 '0.05 40.002 40.004 40.003 lydrozide 4.7 5.8 0.003 0*057 0.006" 0.026 Total T1tal Organic Carbon (ag/8) 0.13 0.90 0.0053 00052 0.014 0.034 Total Sulfur as 50 1mso4 /5) 3.1 33. 0.015 i.0063 0.0076 0.046 0.01 11. 0.0042 0.0018 0.026 Cbloride 0'.0021 Fluoride (mg/8) 0.013 0.027 0.00021 0.00026 0.00071 0.00011

  • Utzogon. xitrate 0.13 0.0044 0.00084 '0.0002 '0.003 0.00017 0.017 0.00538 %0.0001 '0.0001 '0.O0002 40.0001 sitrooen. Uitrito (mgSl)

'0.005 40.0004 -0. 0003 Phosphate. Ortho o0.003 '0.002 40.0003 (38/I8)

Sulfate 2.5 33. 0.016 0.0036 0.0036 0.04 (agsO I) 1.2 30. 0.025 0.019 0.017 0.008S Potassium Sodium (4/6 0.35 3.6 0.017 0.0031 0.0071 0.0029 Magnesium 1.4 0.13 0.0036 0.0016 0.0046 0.016 Iron (as/a -0.0008 40.002 '0.00004 0.00036 '0.00007 0.00077 Calcium (ag/a) 0.14 0.35 0.01 0.0044 0.012 0.0043 Boron (mgai) 0.023 0.041 0.00037 0.00019 o0.00011 0.00069 Strontium 0. 0011 0.0042 0.00027 0.00005 0. 00027 O. 00 00' (ma/a)

Aluminum -0. 0006 '0.002 '0.00004 '0.0003 0.00057 40.00008 Load 0.0011 0.0067 '0.00006 -0.00006 '0.00011 0.00029 (ma/a) 0.0025 '0.00022 0.00001 -0.0000 1 '0.00001 0.00001 Barium Arsenic 0.00092 0.0022 '0.00005 '0.00006 40.00011 '0.0009

Table 6. DRYWELL BAY 11 DRAIN WATER (GPUN)

BAY 11 DRAIN WATER BAY 11 DRAIN WATER 12/1/86 12/6/86 (ppm) (ppm)

Sodium 145 96 142 .85 Potassium Calcium 7.5 6.4 Magnesium 30 11 Aluminum 0.33 0.02

< 0.02 Nickel ( 0.01 a 0.74 Iron Chromium

< 0.01 0.01 < 0.02 Manganese, .0.01 0.02 Lead 0.06 < 0.02 N* 3 (N) 3.6 Chloride 32.5 25 8.7 6 Nitrate 153 60 Sulfate 5 ND Phosphate Fluoride < 1 TOC 51 23.3 Organic Acid < 0.1 Total Sulfur as SO4 153 Conductivity (uS/cm) 1100 814 8.90 8.70 pH

  • Alkalinity 260
  • All Alkalinity Present As HCO3

Table 7. OYSTER CREEK DEPOSIT SAMPLES (1) (GPUN) 144036 Deposit - Scrapings from Bay No. 7 between torus and dryvell (Oyster Creek No. WS-6153-86) 1"037 Deposit - Scrapings from in back of No. 11 expansion joint found in Bay No. 11 between torus and dryvell (0. C. No. WS-6280-86) 1"4038 Deposit - Scrapings from under downcomer found in bay No. 11 between torus and dryvell (Oyster Creek No. US-6281-86) 1"036 1"4037 1"038 Aluminum (A1 2 03 ) 0.091 0.232 0.381 Boron (1203) 0.35 0.35 0.32 Calcium (Ca0) 0.21 2.07 1.39 Chromium (Cr 20 3 ) 0.006 00.004 0.045 Copper (CuO), 0.013 0.038 0,088 Iron (Fe 20 3 ) 78.51 69.93 65.35 Lead (PbO) 0.55 0.51 8.72 magnesium (MgO) 0.27 2.12 4.78 Manganese (OnO) 0.33 0.25 0.48 Nickel (NiO) 0.013 0.025 0.044 Potassium (K2 0) 1.58 0.12 0.16 Sodium (Na20) 1.15 0.11 0.19 Total Yields 83.072 75.76Z 81.961

  • The remainder of the deposit was verified by EDAX to be silicon which is not soluble in hydrochloric acid. The chloride detected by EDAX is due to solvent.

(1) Samples taken between 12/1/86 and 12/6/86.

Table 8. EDAX Elemental Analysis of "Deposit" from Day 7-- GE Element Detected Range (Wt.%) Average (Wt.%)

Na 0.00 2.09 0.61 Si 0.00 0.66 0.15 S 0.00 11.65 4.15 Cl 0.40 6.74 2.11 K 0.76 21.24 8.00 0.20 ..

Ca 0.00 1.30 Mn 0.00 0.93 0.25 Fe 41.37 96.82 73.49 Br 0.00 4.38 0.72 Pb 0.00 34.39 10.27

Table 9. UT Characterization of Damage by Bay Number BayN. UT Characterization 1 Minor damage 3 Minor damage 5 Pitting/inclusion 7 Minor damage 9 Pitting/inclusions 11 Wastage 13 Wastage 15 Pitting/helutiont 17 Wastage 19 Wastage

Table10. Core Sample Locations Sample Bay/

No. Location TM~ Elevation Samples Obtained Organization 1

19C Wastage 11'-3 5/8" Core, sand, GPUN bacteriological*

2 1l5A Pit/Incl 11'-5 1/4" Core sand,' GPUN bacteriological 3 17D Wastage 11'-3 3/4" Core,-sand GE 4 19A Wastage 11'-3 3/8" Core, sand GE bacteriological 5 1l1A Wastage 11'-3" Core, sand GPUN-Archive 6 llA-H Minor damage 12'-2 3/4" Core, sand GE bacteriological 7 19A 12'-i" Minor damage Core,, sand GPUN-Archivei Baceriological analysis performed at York College

TABLE 11. ENERGY DISPERSION ANALYSES FROM THE SURFACE OF THE PLUG SAIMLES (GPUN)

ELEMENTAL COMPOSIT-ION SAMPLE MAJOR MINOR TRACE 15A Fe Pb AISi,Ca,Mn 19C Fe Cl AI,SI,Mn

  • MAJOR > 10 Wt.%

MINOR > I wt. %

TRACE < wt. %

ELEMENTS BELOW ATOMIC NUMBER OF 11 ARE NOT DETECTABLE.

TABLE 12. ENERGY DISPERSION ANALYSIS OF THE SAND SAMPLE FROM THE 15A SAMPLE LOCATION (GPUN)

ELEMENTAL COMPOSITION

  • MAJOR Si MINOR AI Fe TRACE Cl,KPb,Ti
  • MAJOR >. 10 wt. z MINOR lwt.z TRACE 1 wt. %

TABLE 13. ENERGY DISPERSION ANALYSIS OF THE FLAKE DEPOSIT FROM THE 19C PLUG SAMPLE (GPUN)

ELEMENTAL COMPOSITION 0 MAJOR Fe MINOR TRACE Si,.Cl pH DETERMINED BY LITMUS PAPER 4

SMAJOR *~10 Wt. %

MINOR *~1 wt. %

a TRACE 1lwt. %

Table 14. Oyster Creek Core Plug Corrosion Surfaces - GE Element Core Plug Core Plug Core Plug Conc. Range 17D 19A IIA-H Al m 0..00-0.04 Si 1.42-2.45 S 0.17-0.20 9.83-11.31 Cl 3.71-4.92 0.34-1.25 4.39,5.37 K 0..00-0.16 Ca 0.00-0.03 0.14-0.68 Mn '1.36-1.93 1.87-2.48 0.00-0.11 Fe 92.73-94.60 96.07-97.45 21.72-28.87 Pb 52.61-519.77 Br 0.00-0.35 0.00-0.16 1.17-1.37 Cu Ti 0.04-0.07 0.03-0.07 Cr 0.08-0.09 0.06-0.16

Table 15. Oyster Creek Core Plug Cross-Section Analysis -,GE Typical Concentration ýWt.Z)

Element Plug 17D* Plug 19A Plug IlA-H Al Si 0.08 0.30 S 0.23 16.40 Cl 3.45 0.14 2.57 K 0.02 Ca "0.02 FM 1.63 1.24 0.01 Fe 94.40 98.37 0.66 Pb 79.56 Br 0.08 0.16 Cu 0.27 Ti 0.04 0.07 0.05 Cr 0.09 0.18 0.02 Xerge of (2) values

Table 16. Oyster Creek Plug Crust Samples (Wt.Z) - GE Elemental Conc. Range Plug 17D Plug 19A Al 0.00-J. 03 Si 0.00-0.63 3.81-30.34 S 0.07-1.72 cl 0.02-0.38 0.33-1.93 K 0.00-0.09 0.00-0.65 Ca 0.00-0.11 0.00-0.66 Mn 1.54-10.92 0.00-1.50 Fe 88.32-98.26 64.69-93.36 Pb B.r Cu 0.00-0.23 0.00-0.52 TI 0.00-2.98

9 Table 17. Elements. Present in Seawater

. Anions, ppm, Cations, ppm Cl 18980 Na *10561 so 4 2652 Mg 1272.

Br *65 Ca -400 F 1.4 K '380 I 0.05 Sr 13 Inorg. C 28 si02 0.01-7.0 Org. C 1.2-3.0 B 4.6 N(NO3 ) O0O01-0.7 H3 BO3 26 N(NO2 ) 0.001-0.05 Si 0.02-4.0 N(NH 3 ) 0.005-0.05 Al 0.6-1.5 Org. N 0.03-0.2 Rb 0.2 P(PO4 ) 0.001-0.10 Li 0.1 Org. P 0-0.016 Ba 0.05 As 0.003-0.;024 Fe 0.002-0.02 Zn 0.005ý0.014 Cu 0.001-0.09

Table 18. Summary of Core Plug Thickness Measurements Pre-Removal Post-Removal Average Average Sample Thickness, in Thickness, in Coment a 19C 0.815 0.825 Wastage, thick corrosion product 15A (0.490 min) 1.17 Inclusions, superficial corrosion 1.17 17D 0.840 0.860 Wastage, thick corrosion product 19A 0.830 0.847 Wastage, thick corrosion product 11A 0.860 0.885 Wastage - Archive specimen 11A-H 1.17 1.19 center Above wastage, no significant corrosion 19A 1.14 1.18 center Above wastage, no significant corrosion

-1

TABLE 19. CORROSION RATES OF CARBON STEEL UNDER STATIC-AIR SATURATED CONDITIONS 1 2 -15 WATER TEMP EXPOSURE CORROSION "C(OF) PH PERIOD,DAYS RATEMPY REF TYPE 40(104) 4.5-8 23.8 UHLIG/

DISTILLED +

WHITMAN NAOH/HCL 4.1-9.5 UHLIG/

22(72) - 16.6 WHITMAN 2.1 BRUSH PARTIAL DEMIN 52(125) '62 (0,I/3,6uS/cm) 145 5.6 BRUSH SPELLER NA 40(104) 12 60(140) 14 SPELLER 25(77) MERCER DISTILLED 5.4-6.5 100 1.4 40(104) 5.4-7.0 100 2.9 MERCER 60(140) 5.4-8.0 100 6.6 MERCER KHOMITCH TAP 40(104) 7.2-7.7 90 53.5 90 54.0 KHOMITCH 50(122) 7.2-7.7 90 61.7 KHOMITCH 60(140) 7.2-7.7 CONDENSATE 25(77) 35 8 BREDEN 45(113) 20 NOE FEEDWATER 45(113) 365-1095 20 WAGNER CONDENSATE 7.5-11 45(113 15 OBRECHT CONDENSATE >6 25(77) "%7 3.5 HUDSON SEAWATER SEAWATER 50(122) >50 NACE SOIL MIX 15(59) ^-7 1456 "'Ip UHLIG

7-ass I!

Figure 1. Oyster Creek Mark I Containment

.6 __- 2l_eo 10 44.

PLAN VIEW ToRUS DR-I'WEL.

Figure 2. Location of Bays in Oyster Creek Torus and Drywell.

X=Sites of water on Torus floor.

Figure 3. Primary Containment Geometry of Oyster Creek SI FJSERGAftR P PO~tf A~'

- A. AtA IL M-46")

FIGURE, 4. PWTIAL C.ROES S~ECTIOW4OP DRYWELL

V."N t yI lI IL it'-d' W %A"CbAW*L FIGURE 5. SECTION A-A A7 VgNT

r4 S AWD, P 0F S M ALL' -z LE S SFET~~ ~

~

V!

U U

i a

ZiA AL FE' C

CL K Z.V I

--f P,13IT, Figure 6. Photo shows distribution anld type of sand particles.

Spectra shows basic elemental composition' (GPUN)

0a AJ, See, Fu" 06 4?, D+j s h.

)WEACT49L V1566L a

1-*Uft$O

~ 1.,a0 f

DILYW6LL V*5SL 1L.

Figure 7. Top of Reactor Vessel. Note location of bellows, insulation and concrete.

  • "b.',* *'C.ArDRYý Figure 8. Close-up view of bellows and location of the two 2" drain lines.

I U ~a 4w.xg~

PlLA14tE~L.5IW .

MKIS ~ .~ ~ui Figure 9. Location of UT measurements.

FIGURE 10. CROSS-SECTION VIEWS OF DRYWELL WALL CONDITIONS

°V 0.0054, PLUG 15A (PITTING)

T Ioox PLUG 19C (UNIFORM CORROSION)

FIGURE 11.

PLUG 15A SCALE CHARACTERIZATION MAGNIFICATION -30qx OXIDE SCALE AL DRYWEILAL.

jo.*

LINE REPRESENTS ENERGY DISPERSION LINE PROFILE LOCATION.

(-

FIGURE 12. OYSTER CREEK DRYWELL PLUS 2 (15A) 3FZr*' LAEEL 5;ZC77V4 .--ILE Nm'-.IE

-u;*

PLUG OYSTER CREEK DRYWELL PLUS 2 I<--WALL - >.

< - - - - - -- - -- C--

CA L- - - -- -- - - ---, - - -- ... -.. .. .-

.**".*.-.: i:@**:,:*-:i* * .. '-".:

~~~~~~~~~~~~.

.  :.. ... . . . ..... . .- ,.  :*.. . . . .. ,...*,.*-*

  • i: * -:.* ...

( .. ..

w

.. "*.-*,.7 " ., ,-..f=*' '.,, --- *.-. ',***-* ..... ". *... .*. ':.1. " ";.* ... .. . -

  • . I- . -. .";.d . * *,,". ,;"':,*.:*..*,*:. . - ,--J * '*'.."r.*."".". ..

----- - ---------- __ m ----------------------------------------

K-

S f r- 2X Figure .13. Plug 15Aoutside surface of drywell.

Uniform red brown corrosion product.

N4 E. .1

  • :: _. . t° .-

'V Q.

  • .1*

501, I .o

'4 9

500X Figure 14. Plug AUAAluminide stringer at mid-vall.

Plane parallel :to rolling direction.

501

  • 5

'I..

0.

seA.

V60. 1.t C S.

.z 40 **

a Lee 9 4'. V. 0 0 A 500X Figure 15. Plug I5AAluminide Stringer at mid-wall.

Plane perpendicular to rolling direction.

i II I

I IU U

I I

U U

U U

U U

U U

U U

U U

U U

U X7U U

7U S U

S U

U U

7 U U

p I

U S

U m

I I

I S

Plug #1

16. Plugl9C outer wall surface microplane is located Fiizure

PLUG# 19C E.,1 :-GEWER IAL , :EF)S IT I.. ~:..~ s~E:TF~¶ Fi.Z ~E 40 V, ------------------- I------------- ------------------------------------------- ---------------o----------------

FE

,,Vv~J uI~

C .1 U

N "41, CL I -. ,-.rW?*

N'1. .'

P IG I Figure 17. Typical elemental analysis of sample l9Ccorrosion product.

FIGURE .18, PLUG IgC SCALE CHARACTERIZATION PlAGNIFICATION - 56X SCALE ,DRYWELL WALL O.o?,'4.

LINE REPRESENTS ENERGY DIISPERS ION LINE PROFILE LOCATION.

c Figup'e 19. OYSTER CREEK PLUG 1 (19C)

I.- . .-.:-

7 --------------------------------------------- --------------- ---

  • .---- mvDRYEL.Lý.WALL OYSTER CR E EFK' P L UGS I EV" A il~

L AN ",R

<~~~~~~

. DE -" .... . . ... ........

1,,.,

" '+:' "*'* " *:' ;":

. +.. " . :;! .,; * *i* *+ : .*' ': ": '- . -  :" + ,Z ,,L- +- : * *, , .*. ', .'k

[ . : , . /A +. t a ...

. , ;,a'..r . . .

  • . . L,*

. , .,-: r .-: . . . . .>-+*

, ...+.. :*. ,+ . . " ; * .;, . .. + ., : ,: , * +T * .. , , +,, .L- , :* , * .-., ":.- .. .

" - " * " *:' "L"- *"+"* +:""'I + ' ".. ." " " ** . . . '+ ", . ", '+ " ' . .* k., .,,*, " +a:,* ..

FIGURE 20. PLUG l9C SCALE CHARACTERIZATION MAGNIFICATION - 580X SCALE DRYWELL WALL o

I.

S60("a LINE REPRESENTS ENERGY DISPERSION LINE PROFILE LOCATION.

THE ARROW LOCATES A MANGANESE-SULFIDE INCLUSION WITHIN, TliE SCALE LAYER.

  • 11 r I.J.

I 0

N I-'

I 0

n a-' 4 1

'A U C

0 II S

1 n 1, I, g.

S C

  • 1  !

Iqh I-'

0 n

S 0

. 0 .1 w

- I

SEM No. ,

Fig.- Samplie.o. ore I;ro Ping Sa.v i 3 :(I :-D)0 ACc Pan*

SEM No.1

\IAyCr I,

Fi.Sample I.O.0y 4 6~k ~ Pu 3 [

f 11.

~46~,/ / 2 7t~ ___

rat. rqct r -

o o Lb t o * * *

  • d I °L °. . .

977

,TP.

Fig ICPl~ Mo APE] Hag.

-i._____ Bid ?lo mTz APQWag.~

44

,f 1s (-- ý; /

I 36~L4Z PC17 m!a pig.. 370 P edO Kmg.;f fig.______ 3Fo cfQ AprAPEI Mg.

  • SEM No.1.

a A. a I Sea

.9 &;

rita W .

It NJ I Fig., Sample ID fr- & C f CorroSO n 1 5r4 4c eg 4,~/ Asrr. cc 6

SMNo. /3,3*!r tA 1 er

.I 7.- -f Fig. .. Ž...sample I.D 6oe A4 /,I e

F.

/

I ! Ji lIp I Cb1 :

Lg.______ APO z Hag . Fi._____F~APO-R fa 41A/

6

ýIee L5._____ 5?ýPlO KIDAiIL, Hag 3 FLg .. I uI N A4! Haj-gj Fig.___ 19AQg. 5 ZFg___ I a 4~

C, v__C___ im j.j/ R-R*P- ____ __e

/33' SEM No.1 r, I "-y-~~~'fvh4_% i o Fig.O Samplel D.Ca~re 6-V.n/ %l ('I,&

SEM No. /.33, A^ yreSd

~f,~ 7 JE~A2d~meA cc--~

Sample I.D. 65'r6 C ;re ock Phl iIANH)

(6('-¢ 67 m rAe' I I'I'I'I'11'I'i'1'I'1'I.J.I'I'I¶11'I'iIP I

iris -i lC PC r%

U 0 POm Fig._ Iu.

Y -~4 r'f'i 4 7?rjl(A~

a

71g. 3ui~nOrzOAI~'was.J2Z~

ro g.

Fig.,~ 3 2

.59to nO AII a y~ iO Fig.________ E~AP~ ag..Ž

- /

ple_*

1 40*

F~~-'A D A

izQ'C PD D

. .. . i m l * .. .. .

~a'~ e{v~'fZ~*' j~Q~4e %'L'r6 4'

, . 0 FIGURE 35, CORROSION PRODUCTS OF IRON/STEEL WITHOUT CONTAMINANTS FEO.NH2 0 FE304 'N 2O ;FE203 OR ORk FE(OH) 2 FE(OH) 3 FE 3FE(OH) 2 FE304.+2H20+H 2 9

FE(OH) 2 +1/2 H2 0+1/40 2 i

  • i iiii ii -:* FE(OH) 3 I
  • HYDROUS FERROUS "HYDROUS FERRIC
  • HYDROUS FERROUS OXIDE FERRITE :OXIDE

(

  • FERROUS HYDROXIDE
  • MAGNETITE
  • FERRIC HYDROXIDE

° PH9.5 " PH 7.0 PH 7,0 P

WHITE (PURE) * -BLACK ORANGE/BROWN REI

-(RUST)

  • GREEN
  • MAGNETIC " NON SFE 2 MAGNETIC 03 HEMATITE GREENISH/BLACK

.MAGNETIC YFE 2 03

200

.6 150 ISO

.2 0 9 0

2 3 4 S 6 seri@ 1: iro in Contact with magnetit, serie 2: no conuct vithimgnetite

a. Corrosion rate of iron versus pH of solutions of FeC1 2 , at 200C (68°F) 2W0 6

100 4 5o 2 0 0 0 1 2 3 4 serie 1: iron in contact With aMnetlte saris 2: no contat with mnLetit

b. Corrosion rate of iron versus (Fe++) of solutions of FeCl 2 at 20C (68 0 F)

Figure 36. Increase in instantaneous corrosion rate of ir n in solutions of FeCd 2 with and without magnetite.

F:g)uwe ý)* Crra',Icv%PR,-.-ecs tvcew 5+c,-(nc /Artv So+v,-m~ed V

i-I I MOO ii I PAX 1~

GO

.~~~. .. . .--.

(~>Ito 10 ..... .........................

- t. ...- -.. - . . . . * .-

1.0

-. _........ . . . .. . ,-" l . .*s .1/ ~ r . ... -"... ,

10 .. . .. . . . . . .. . -.- - - - - - -

Ct S I )c 102.0 IO04 N'iO 115 G$

-~~~ 4. Le 0,-

FIGURE 38. POSSIBLE CORROSION MECHANISM OF OYSTER CREEK DRYWELL CORE SAMPLES AREA WASTAGE FIBERGLASS BOTTOM LEAD w CURB 02, DEPLETED AREA WET SAND Fe > t.2e-Fe2+ + 2CY-, FeCI 2 FLOOR

-1 02 RICH AREA 02 +2H20 + 4e - 40H-U m -OH, --oMOH HIGHER pH`

DUE TO CONCRETE 02 4C o2: CO 2 CONCRETEC CONCRETE li; I"

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