ML20154H221

Metallurgic Lab Note 85-990, Metallurgic Analysis of 3A & 3C Wear Rings Removed from RHR Pump Impellers,Peach Bottom Unit 3

ML20154H221
Person / Time
Site:	Peach Bottom
Issue date:	01/08/1986
From:	Diletto R PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20154H206	List: ML20154H202 ML20154H221
References
85-990, NUDOCS 8603100216
Download: ML20154H221 (21)

Text

_

RECENFD JAN1a 7,33 W " Atua O

PHILADELPHIA ELECTRIC COMPANY O

PHILADELPHI A o

Metallurgical Laboratory Note No.85-990 g

Metallurgical Analysis of the 3A and 3C Wear Rings Removed from the Residual Heat Removal Pump Impellers, Peach Bottom Unit #3 By O

R. J. Diletto O

O Testing 6 Laboratories Division January 8, 1986

'O O

8603100216 860306 O

PDR ADOCK 05000277 S

PDR

C)

Matnllurgy Laborctory Notn No.85-990

Subject:

Metallurgical Analysis of the 3A and 3C Wear Rings Removed from the Residual Heat Removal (RHR)

Pump

()

Impellers, Peach Bottom Unit #3.

Purpose:

To examine the impeller wear rings and determine the probable cause of cracking.

Background:

Station Maintenance had requested Metallurgical ab-()

sistance when cracked wear rings were observed during RHR Pump / Motor maintenance.

The metallurgical exami-nation and maintenance inspection results prompted an inquiry by the NRC with regard to possible implica-tions of a generic problem.

The manufacturer was l

Bingham-Willamette.

!O i

This laboratory note contains the Summation of I

Results, Conclusions and the illustrations that were presented to the NRC in

Bethesda, Maryland on December 19, 1985.

Also, additional illustrations, a

discussion and suggestion are included.

()

==

Conclusions:==

1.

The wear rings failed by intergranular stress-assisted corrosion cracking which propagated from numerous surf ace indications.

2.

The susceptibility of these wear rings to IGSCC g

was increased due to the followings Initiation sites - folds, laps and possible a.

quench cracks.

b.

Residual OD hoop stresses from the shrink fit.

c.

Full hardness heat treatment in a susceptible material - 410SS Summation of Results 1.

Visually, the final fracture appears to propagate O.D.

to I.D. from an older crack as judged from

()

the gradual decline in corrosion scale.

(Figures 1& 2) 2.

The wear ring material had an average Rockwell hardness of C43 (BHN 404).

Bingham-Willamette specifies a

range of BHN 315 to 365 (C34-C39).

(Figures 2 & 3)

O 3.

Visually, the O.D. was observed to contain a mul-titude of parallel cracks which were perpendicu-lar to the hoop stress and to the abrasion, and were parallel to the fractures.

(Figures 4 & 5)

O O

C)

• 4.

Debris within the O.D. surface discontinuities and corrosion deposits on the fracture surface were examined by x-ray microprobe.

The presence

.I) of harmful contaminates were not detected.

(Figures 6 & 7) 5.

The material was verified to be ASTM A182 grade F6A (410) as specified by Bingham-Willamette.

(Figure 8) 6.

The mode of fracture, observed by electron mi-croscopy and metallography, was intergranular cracking.

(Figures 9 & 10)

\\\\

7.

The O.D. of the wear rings contained undesirable

..(3 indications which appeared to be folds or laps typical of a

machining operation and possible quench cracks from fabrication heat treatment.

(Figures 11, 12, 13, & 14) 8.

The microstructure was characteristic of a 410

()

Martensitic stainless steel in the quenched and tempered condition.

There was no evidence of elongated or worked grains on the I.D.

or O.D.

sorface.

(Figure 15)

Discussion:

jo The wear rings vere examined visually, by metallogra-

phy, by electron microscopy, for semi quantitive chemical verification, for microhardness and Rockwell hardness.

The attached figures document our findings and are: referenced in the Summation of Results.

1 The results of this examination suggest that the j) austenitizing and tempering heat treating tempera-tures were not chosen for the optimum combination of

hardness, toughness and corrosion resistance properties.

Similar failures were reported by Bechtel, Materials

'g) and Quality Services Department, at the Palo Verde Nuclear Generating Station.

Their auxiliary feed-water pump, manufactured by Bingham-Willamette, had wear rings fabricated from type 440A Martensitic stainless steel.

The reported specified heat treat-ment required full austenitization with a tempering

,0 temperature that achieved near full hardenability.

Additionally, several parallel cracks adjacent to the main fracture were observed on the wear ring 0.D.

surface.

The pattern of these cracks was reported as being similar to that of grinding cracks.

O O

+-.

Suggestion:

The results of this examination suggest that Bingham-Willamette, the manufacture, review their 410SS wear ring processing sequence from forging through to final grind in order to optimize the desired hardness and corrosion properties for this shrink fit application.

Alternate materials not susceptible to stress corrosion cracking or embrittlement should be considered by the manufacture.

s W

V Prepared by:

R. John Diletto u

o v

w

. - - - - - ---- n..

T 4

i i-O 6

?

@~@ @ @.@ @

i

=

0

.,N.'"

).::

N

g.. j

.,....e q p gt d

[..-

@ $ @-(

Ij.~

o om 2

3 3

' ^5-

\\,\\ ?.

1 N

c

.c.

>E t

_A+_! te

i a

3 i:

N ct o

3 s

O Dk I

k k N

llll l },,

j.

K lllllllllll

\\.$

k o

i M fth?n mlV.

l I

i u

@@Gg O

I

~ '

N'd i

O I

O

7,g cm y - -

PARTS LIST M TH."ATERIAL DESIGNATIONS 270683/690 g

y.

s' PA'hT DESCRIPTION (TY l EAT.~. RIAL Di.SIGNATION

,.2.- =

-. =:: :=. :.: --

-.-r

f.."1 VOLUTE:

f.J Ccnsisting of part 1, 2 & 3 OF

. 1.1 I volute Case 1

L ASTM A216, OR. WCB i.

1.2 i Base Pla te (.ielded to Vol. )

1

! ASTM A36 7

% ;-l.3

• Ribs (Welded to Volute) 4 ASTM A36 24 l ASTM A19), GR. B7 I/154 Studs (Volute)

T/ ~k.3' -

l Nuts (Volute Studs) 24 l'

ASTM A194, GR. 2H ijif. ' -

t

O OJ:~.

• Gaske t (Volute )

1 l

Asbestos Filled

! Plug (Volute Drain & Vent) l2 AISI3}1GR.II AST:: Al l

_.7

! Plug (Volute Vent) i1 ASTM AlB1 GR. II t.*

5 -

l I

l

.? ' ; '

l l

l*Jt7 10*

STUPPING BOX W DRIVFR STAND IO consis tin 6 or Parts 10.1 thru 10.6 f.' *J 10.1-Stuffing Box l'

, ASTM A216 GR. WCB G

'6.10.2 ' Motor Base (Weld to 10.3 & 10,5) l' l ' ASTM A36 l

' 10.

• Riser Pipe (Weldedto10.1,]*.g)&

{

ASTM'A36 1

. g_ ' 10.

10.

Lug 4

l ASTM A36 T.

, Riba (Welded to 10.1,10.2 & 10.3) 4 AS"'M A36 I[Vs 10.

Pin (Lock - Bearing - itetainer) 1 1 AISI 304 O

11 Capscrews (Motor Adjusting) 4 SAE OR. 5 y

1' 6 -- I=peller 1

ASm A296, GR. CA-15 i

lo m e e~d e b est

)

O h.17-Wearing Ring (Impeller Eye) 1 ASTM A182 GR. F6, 315-365 BE i

J weere~d J rap

! Or A351 CA15 315-365 BHN

', ;..f _~ '18 Wearing Ring (Inpeller Hub) 1 AS"'M A182 GR. F6 315-365 si 13 or A351 CA-15 315-365.BBN

.[.. -19 Wearing Ring (Volute) 1 Ni-Resist #2.

k 7..

O

"'2,0 Wearing Ring (Stutt?.ng Box)

1 Ni-Fesist #2

.'.21

Hex. Soc. Hd. Capscrew i 16 '

AISI 304 j.J, fm t. (Used with part.19 6: 20) j i

2 i "Spirol" Locking Pin j

O.[h> yy,2' Key - Impeller i1 l AISI 416 16 I AISI 302 (Welded to 19, 20 & 21) i e

' 2 Locknut - Impeller i1

'q'.3 ;:.20 AISI 304

h. - 25 Rex - Soc. Ed. Capscrew 1

AISI 304 F.

• "Spirol" Locking Pin

!l

AISI 302 O ; F E' -

(Welded to 24 & 25) gl.

i Nft.."27 Shaft

,1

! ASTM A276, Type 416

,1"8 I 260-302 BHN r

Sleeve - Shaf t

'1 0.25% Ni. Max.

.I.- l AISI 403, 6 Overlay Colmoney #

1 OI CARTRIDGE-JOURNAL DEARI NG:

I

. (I Consisting of parts 29 thru 32 i

c.

f29 d Retainer - Bearing Snell

• 1 CA-15 315-365 BEN h.

5t

\\,'

.:,1 O

r-Z O

1 E

e.. 3.c. '. 7. co,.

. ci. +" m,,..b).y. -l4.'. r. f..r. 'l ',j e,.

i

',,_y

. c g

. -

• 4 4

c.

y.y,[., e. ' :..,

r........n p :n a,~.g ', yc. ' s g'ys m

7; 1:h. ;.4 s4

.5 +., : $.

-r.

. ' '. n n,. ;. *> - f. 3 ?.I. y.. -

..s..

1,..,

.?

t%-

,... c v..

3

. e.. ~',. ',

.,. > ' y l

,. ~

r c

' +.

.s.,.

.* 3

..- m*.ca

~$

4,.

,e. A

+

.e-

.%, n'.

• e O

p,-

s,-

....g

,.ts' f

k%D d..

3

.Q -.,., q > " p

,k.

4

$. i,; P V. *

• p m-~#: g {,,,

, 4.., r....-

y",

...+-

q*!

• 'q';

,+, *

[,

.g 4

.',9

,4.

,,.- -., -,.. -., -3,y :y '

ir

,.s s...

..-.g.,p c,,9 ;.

.A g,

,, a r

.'

• j.., -

• ... p. f.*.

s.

- *k.

i g.'

=

>,.- n.,... _

, 1),

,r*

"'..,~/

7.

(J

...v.

=c f.

g

.'t

..a

p.., 2 +

. ai

+e.

Jk.... ',=

,9.pr,,..

r -,-

..g

,s,-

y.-

,M. - ' '... ',

"v,

.'y.."..,6 -.

,e y _.

.'t-m.

=

6 p

a,,

,...- s.,

L..

v..,.,,,

.;;. -e-

~

_,,, -.. g

,.. s

't-

.,n..

.c

?.

.+

.c

.-F

.j.f, L,.

an.

,,s.

L f>

s

• , n,.. -.

..x,,

.s.

.*q --

y

• 9 a' v.y' ? -

4 O

^D 1 j O

,p;.@,yq _.,... p Q v.., y 5,

,y.g.., < y e

4w

~. < p c

.r. m..,

n

-.n

s

- 1..

n<

j,..,

x

~(..

/>

U bl y

. ~.

.4. 3...,n". '..

O i

.a.

fg~s.

g.4

/*

i Ts'.

,(

i,-

t.W.&'

-d 4.

g[..

v y. <

L n ' v.

7., pm. 7,:.; 7.g e

.y Y,. 9,. --.; - -

,i O

O

.c ' m.

..."4,i

• • 'F

+

,k.

e 4e

.t. N

,g*

' N.'

g1M

'.l*.'@,.

,ae

-.'.3'

., s

./,

5

,. '*. '.,'. ( '.(;. n.'. l q{%rp '.'

,,. l. :. '. " y : p

'k,*,

i:. -

.,. =v-.

.,, - + % :'.....

g.

,n-

• g

7...

,,n. :

g,

g.

,,y....,,,

....; g

... ( -,,g

(,.

4, *v.

.'. F o

a,..,.......

.'h

- m

t..

e.

, ; y..

i.g,' -

.,6.. 'g'.,.,,,.-

4..' e,.

. *, +..

, i. 5.. t....-

.c

.-,. f. ; ' '

v.:. m., *,. 0 ' *,,

• Y

'* O,b $ M.,.*,.

r O

K K

T.

O

_,,-,,___.__2

-,-u_._,v a_.

m__.,a

__w O

r GURE@

O C

C C

C C

43 42 4r 47 H

O l'

g 1,0 I

s 1

G:?g.w'.r..

sf W2

.e e

c c.

C

[!MN:

hr 4'7 3

lO

!.E_.'.:;i?yM WFW'.

?j

.g

,.3

{

- M.d.

y

't /.'

I

[d[S'2

. i 't i

.t'W;kM>.

Mk l

i 110 1

1

- 'a s' y n

' :.:/ l~ :., 4. '... G.

s'.'.,:y. g. ~ *f.q }

NI

%gg n. O

-a.nm' g D.L; k.:2. y s' M %

o

')lfff:"lL'&v~%?At&#1;.

. Y.,l.?. f1,

~~

a.~. ; ;.. ~

.. :., :.0...

_,;/.

1.

.r. - ~

y, v.

y -

lO

. g.,.#. 4 m. a.s,e, :: 7.. ' :.g.w.' s,.t L'..v. s 4;a.<g., j P,. s : M. 4,.3..

. if. m'.,,-0. 9<. -

-~, ci.c. -

..a

'.,,, g.

.(,..

....., 7'. o 1 j. -*,f

.,? /..

Ip..,.

/. -

i

'. '~..

..., -..,y '.;.

g Y

' ^

k.

+.r:...m:..W.

o

.x, i

l 1o i

O

,o 3

M.g:.~. :.... C90 '._-

oo O

~ ".. ' W M.... w..

v

~. '

e...... l

~.

r.c.-

~ - -; c59 &e _ _.

.b...

9, y, n;3.g, i

... C 4 Y.,. % -.

. ~.cw,5 4 O

o

- cn.r w._~

e z

_ t n-

- o cn +

.g Q

6.: n._.,

o., r.;~ ; '"s e.- ; ;,,".,.'.,,'

v..,

+.

o.*,....t-e

. s.... m.

.e y

-..,, ~;,.c.

~r..

-..4

s.,....c zo W.,....; e-,... <. ;, e.,a. m.w..n..,;,.. ?.

.z.

w.-- -.....<

• g..,,..s.*

,*n.

m*

t*..*s'

• 5,...

• b.

.i*Y

• y e,

f..?*

^5.Y.

E.-

NN-

?

. '.a.,.. s..y..,.r. 4.

yi v.r...v,.y'.m..,.,:

,L '.,

I 3

r. ; y,... g.8-s

3...

. *. s. &s.- %v_t.,i I

,f

.a.

• W pFN,.-

b.; b 5[he1;"* =... --,,$.,, R..*.. f.<

. b..?:' 0 :

,y IO uJ m

l

%r

? --

w-.

7...

p

. g &r ;*/****.

5s;.-

y

. t :.&m ru...l W c i_.nAv h

y.

., x..

t

• w.

• i

f..

• <,,1

. e. 4 [,.

' %g g)e/*;'/ ;.P~[r._ e.Q', s ' T..c7. -

' Q.UV A M

_ A,$n'.s. - 2.. '

w

'%, s,.A ---

TJ '

. gf.t e. 4. 4.

.s s 4J..

w O

M;4 L,,Je. "n'*.

..P-

=.

T

=

e,N y..

n Ng

• g c.

.s 4.

s e

(-

be

%N g

. g w;(-

p.

~5,,. - f., -

4'

't..,\\ ',' ' v. --

o - g

'a g

~

. A'e Q',

3 y-7

-. y n

g

.Y w s

. {,e A.*

. *.?l.,r af c

=

i

.s i

,, 4 j,,

• • 7

?.

O

s..%,

w p

- g,,,/s[,'d.,

s y h*. ' p r

5

.s s

..'. 0lp.

(%*s

-* W

s..

. s ',.. ~ -.

)*

• f.-

,3 vn..I A, A,

j*b

n.. (.-

4

- a x c.

l~-

c

\\

J s-g r.w

. /

u

.. o

.s.

_. L', -.(.' e'd ).I*.*fd=

q -[" 4

'~ ~ -

.j,

Q

=. r.

. g...,

1,, e. -.

s.

q 9 s. %. -n,

.. _ _.. \\

• r A -

.i

• *.,,,., a.o,, h..

• [ " *** g '..

?'

,.4,,

• N,a. '. /.

s.

I

, ' - ~. /s*.

%4*,-

a

' s.

5....p.i

' C,. O. y. {.... -'f?'; \\y t,

.g e

'y%-

4.p '

. " p%,.

'J.

,.s.<

?,t

. [. y,.;' j

.C -

.,.* M

'yI ' t' h.. i 7 *E.3

.,.D O

'2-

=

..t-

.... y

,, e ~,

w.*..-

r *. ~

'f c $. ~./.'r.y.,

.C.4f.S r w...~... b.4 Y..

w.

r.e..e p

, (9 R -

• m_..,,

W g.

~

s O

)

i O

i 1

3-4 3

c

..a

...e.

4 @#M,# wp#f kAAngY..'",$p-.4 af 4

F

.N

[I.

', [*..,h'

,.s,... q. '.,

e. a.*- g"

)

s -..,,f -. /

,,g. /.

. ::-. ~

.1 7y ti. s ;

.j

. g u. _ 2, w

r-

• h d.' L be s

7 l

e

• c c)

(. !

I k #.,. l.

[ [ p% a.: '

.r.1 l

? w g :.;

y _. :,,.. %

a ;.;

• . ; g,. "

,....n.r>

<.5

~

.?.

.. - a, p.. n

.A.c.g e

-4 s

.y 4

1. 4

-@5 w....

,q

-n ;

..r

'.f4 l> ke.y /,[ :s. M ' ^.;

' Q;

..A %u.'s % :

bi e

9..

f-_ 1(..," '..

0 s

g+..

L g/

y t(p,a..

,y3

^* fl i

-d

., y4. '. x.l},',.'.

l. )_

• • 4W

.. f-,.

(

. g.

n c. p g

.,.g.,... _,,..,..

f /, _**,l -.ll

.Q,.I 'f[,,f..$w_.

r

," f _ l'.' '..'.,'*:

fi'. ' ',

• 7

. p.'

,h /

.n4 4 c

e...

9 y,I.

....s,

. w

,. g a )4# 0 0-12 C :..-

Vx"2 5.01:2.ST,9 '20 kVf j'.-L8 5.f9 9 0 J 4

I l

I

~O J

b ll J

• StT '

e 4

. 1 s. 4 t,, M..,,

j

• • ~

' [

h*?S ll

^ ' ' _,, b. k o

i,o l/,.../, $.

'Y

b...

,.&,,i?...."',$.

/

,/

}

-. j . -

t,

~

f,.o

./.,.,': ~ * ';s'i ~

~ ~

l

' %. A ^ '_;py

. 9//. - - g:l.' /'.

J:

i

.. - ;.n

,.. f,..- <.

. ~.Y f

A' Y

'h.

, o,.. u.

4,

?;,

, i. ' L 1

V

.?f fVf{ '".f ';. _.

ff' --..

'.,:$', )

_w

..r',.*

7. !

5%'

di.'j r *

>A, p '.

r-

g. A '

..... ~. --

..w. R.,,.,.r

.,, n a 4.*...

n.

f..

a,

'.,g :

s},. -

s-.o-

.4

<. -. s s

Ay

. v.y,

<-.r.

y;;y <,

f.,.'. e

..... <, " }, ;}!j.' ; ;

-e-p

- f & n,;..,., ',. f. N';

t,. E, a

+ ;.

g

...,fu

. 'O.. %. _.,,.

. u p,t.. p>., %.h.

t g

.m,.,.,-.- :

., w. g : Q,,.

x.

a.a

-Q

.f.

3, g % y gg. ok.Q;.

A i, ; y y,s -

.?

'v.

.w;-

7 y, 7

x y,[y,4,...,

g f

, ffkg..,sy[, ' g

' y * (w l

.g,

e g,- g 3"

.:? h

,,'.l : -

IO l

l 1

O

O 5

"4,*:;>.9y E ;[V f

,,4..',-e6.) n 'y, y -

L:. : ;...,

Q

n.,.,... A s, W:. ?, ;.,~.

. b.

n

.... W.,,'$ A.l _...: :

.f;.r ~.- :'

c.

,.I _, :.: -. }...

u,,.,

~e..;....,; 4.. ; ?: f. ? -

,.,a

. '. v.

. / s.

.. c a n...

~,,.... {. ^y)

,y, #,. f :) > :.~f..,.,,q 4

.; [., !.

-=

6

_s 4

... c.-

...g. g. s

,g y p.,.L..;... ;. + -.

y,..

s.

{ :. 3 ',"-

.l.

{

Y

},

O s ?.x A -

t yt g

~w r

- 1.

.:.. e. jo,., -

/ *. *k. '. :.- : '

i- %-o

- _ sjY p 'r*'.r, x c4. *.. -

."g. c

, y; a s.

... *e,,';

. _g

/*j._ _.,

's j

.l*

,.,_T 1.0

, :{' y. l 'fA $l[

q

}.

j '. 4 s.

• f,

$^'

g.;.g

.h.vQ~3~.

/: ~

.ey'-p " ?.<

/

- /

p

+

'g s,

p. ~ N,.

[j vj. -

'N

' 9'.

,. i,

.y

.m.,.

T -

• ' ) >

p 9'20kV:wsoew %W:s 'N.x 7 : ;.W+.pV.'.

L', -

'~

+.

?..:0 ;-}.

, i.i :

4 9'

e

,t 4

o.

. "c t. -

+ x212

.. i,g.

7.

7

.8 5 2 9'9.0 '.' s 0 0 1 $.,. N, 2 O

,'~,-

.-.,. p.

.%pv,q -

r

,c,.,. ; x4,q.g yu m,(,n <....,-,.4..,_ y..,.,I

, ;,'rg % f_ h.

r.,Yss ': :.

h'j.,.,/,.,,

f.a

.e, r...

y.

4

- e

..g..

,..,,..s..;,.,,..,,-

.+

.,. -,,. p

,,.p...,.

g ;,,., -

.y..,,;..,.,. s 4

.e. -

,.(V i,

w t-Q.f..,, ' y ; h (y...,.. };, ;_. .,5%. :.

J'

• / f

,'. R. 9, e ;, h. 3),,.] '- J s-

' O f..

E

..y, M.q;,f ; ;.-

g :,,.c

+ r.

-.. q.

.zi. /

2

.e

.nw.

4...

....,A..,..,

g,3.. ~

3'/.r

, j,,.

..c

.. y; "* {'. p 7

,. l.-,-t g

.. v

..

• w.,,, _

, 3..,,. c.,

. .,',d :

s.

i.,. 2..,, '.......

(.2.. -., -,

g.,,.

.n J

,.3

.e.<

,,;,,. s i

,4,pp,,.; y y -

F: ?.. y.

,; 3,4.v..E

.~.:.

.;. n.m.'.' a y., w'iy,,..

l O

.:. ' q Y 4., '. -J. /

y.-

. c.,. 7.... *'_ ;.3, e.

~

• k.,

E f

k '

1

.q,,

-.... s y,

-g

+y j -.

.,4, f

--.,9 ;.-,'s.,.-

,y i.-

--[.,9

-3

,t 3},

l..,,

g

. s +.. -

.../e, ',,

O

.... e,,. -

.=

s...

-.. < ~.,

o.

g,.

.v -.. er

,g,

.,.,t

~.

g

'..i,. '

r,

=., * >-

t -'e sv'

't

• Y

.y I

~p-7 J.,-

,~ _ j,

f. '

~, s

.gl.,'

a, b.

O

.O 1

1 l

l

@ 2 - LL) E. C - 8 5

~

RATE:

c_1 1 G

1E 2OOLSEC

~

OO-2OKEV:

VU W

3T:

2OOLSEC O

A:

FS-7220 MEM:

A FS-1OO O2 0 24 06 OG O

./ 20.

T-T-30.0 is0FF-at -

j 3LG DTi= 3.6 BKG P72' 4.0

_d i

E0il ANALfSIS

,j

'a]S T

-DEC-35 4

CGNG:UR A TIGN

]

0 1

J

'T.,.

A!.e

L. f..

4 r.

.(

6I.'39 Ca.3C

.9[

i!qn 0.ze 0.4 4:

a s L y.

0.32 0.26

'N lq iO 31 0.76 G.59

- !0 p

J.

0.t:

J.E a.05 J

.t.

0.06 0.0?

<.89 j

.-;K 0.0:

0.0:

40.59 L

4

RK 4.07 1.70 0.57 EK 30.75 t t. 9'3 0.2a 4

g jo NR 1.49 0.55

. 6; jg; g

g 100.00

j g

g h

k J

n 2

l j

i 4

.G W

lb 2

E., Om h_

l ON AS C

KC C

F N

O A

LI L

A R

E I

CURSOR

< KEV >-05.120 EDAX l

l XRAY AT ZsOOOX SEE 2OOOX PHOTO OF CRACK l,l *,. 9 %,,

.?

eg.-

.., f. M ;

Af i$I l

",9,

_,A 3, '.

h. ' =

i ?.

.f.

},

m,!

,/

O

'1 E,.

^

I*, ' '

Q '.

j.l ls _ *

• y" r

• n

/.

l, f

• i W.

'?

d,

,) - r.

C.; ; -

-h,-%,)

.y*

re.

t

' (.lh h

,b

,s.

I enue i O v su. W

O x2000 20kv 85 990 meses i

I

27-NOV-85 1

~

RATE:

T Cl lD T A 2OOLSEC o

OO-2OKEV: 10 VU\\- W 2OOLSEC A:

FS-7373 11E M :

A ~-

FS-200

)

O2 024 OG OS i

!O

. / c,.),

__.L L l *,J,.5. IJ i l'3 U F F * *,. -

s 1

3K.", Pii-2.4 I

t i

BLG P!2C c.0 I

j 2 CON ANALYSIS nw I

27-NOV-S5

!O CCnGci:Rn TION

. i, r-:. /.

4...

o.c.

e.-

i l

0 '.

31.27 93.'5 0.63 i

4AL 0.45 0.36

'. 82

!O iI<

!.20 0.79 0.73 1

- K 0.05 0.03 3.23 i

CRK

3. _.,. 6 6 3

'. 2 9 0.55

.aq w..

0. 0,,.

=_ L.

i.-

s i

O 0.37 0,if 3.41 i

'i l

00.00 iO i

1 l

1 i

'l

'I j

l 1

i'

. i.

i,'

1 i

i, i

i 10 i

3 4

i

)

,d

,n

,i t.

j

.c s.

'N.~

.....,,,,,,,,,,,,,t

', f..,

i

O ON SP C

F N

l A

I R

E I

J CURSOR

< KEV >-05.12O EDAX i

l l

DEPOSITS ON a

16 i

3OOOX o

/-.

,' f u

^

1r I

u 1

t e

i

? ]'..

l g

t jQ

^ *

'y l

59

.p

)

[.. f.

j g-f 1

r

' 'f?

~

~

3

', /

, wm m..v ( '

\\

Ww f jff,* t~.e *

~

g- - f

}

. \\

m. _;..

o x3000 20kV 95/990 =0016 l

~

v v

I GU RE @

p)

~

02-DEC-85 14:54:26 RATE:

CPS TIME 2OOLSEC OO-2OKEV: 1OEV/CH PRST:

2OOLSEC A:

B:

FS-7121 MEM:

A FS-100 l

02 04 OG O8

...r.y s

HSE _ =

u2-DEC-55

'5:0 :35

.O 200.002 LIVE SECONDS l

fi-20.

T't?=30.

TKOFF-a2.

ZAF CORRECTI0f.

u.EM A

I 4

3 lO SIK 0.0011 1.1: 6 0.496 1.00' CRK 0.i498 0.998 0.992 1.240 Milk 0.0021 0.98~ 0.997 1.000 FEK 0.3581 i.000 0.9G2 1.000 i

,O 1

+i WT y.

Bl&E EL.EM CFC E_EP F6 /t SI K 2.0.'50 0.20 f.co me i

CR K 197.6030 12.21 fl.5-13 f

.irl K 2.4050 0.21 t.oo me o

'O TE K 8'7.3513 87.3E i,l i

i

\\

100.0' t) i i

)

i g

,.\\_3....~....,~,,,,,,,,,,,

,i

!(.

l

..... ~...

S C

M F

N I

R N

E I

CURSOR

<KEU)-OS.120 EDAX O

l BASE MATERIAL FROM MOUNTED l

SAMPLE AT 2OOX D

O lo

.=

K

/N v

n m

U

=

e-

- 7)?},.

g.. 'p

• ' ' '- f

/$'

Q'# ~,

(,

w. ', e,.,., ' 1 p,, f.., ' %, ~,.' ',..m.

A. : y- -

E C(- f>?

m,:-: C,)_L.'? q '.yt.%,-pg.,%:";Q Ag::. oq-4,5q, o

W.

. :.64.:. v

. o

,~ 4 :

p..., a,,,.

..N:;., a ~S,? m,y.,A

• A. y #. +* '. pa%., s. *

.o.

.,,.f J, -

f

, s.

g,[..,.m,.* g% #js'(y ? y,:

s

' W, 'j ?i.~ t. Q, n f; J.

3, (D.

s. tgi O :-W ','

.f < p M.C/*."#

n o

.h ~. m. 2 aM

_ g, % T 'l g &.

. m+ ra u..

,, a y

I

$vh$;h h 8N$N I.)

7

{

$ $ ? WllO We)%.g?&f}

t (.;/~l:h..,i;.f,..lM '.

?

A

%..

• f. -. Y ';-7 p ',.

-T., + 'V J

D ", l.V l, 'C ~..

j

~

,f{ X -

• : ' : ' 4 %' ? 4'k..3f

.: c K"

O t r..," : /

~

,% f.ssf'  % ' '

)'\\ ;'

/

f'., g.b

.f -. ' [,D,kc 4 '..'

fg',"#.

.,T-,iM G W

,' '5Q>

... + ?m;4.s J,._

c.s., g. ',;M' p n.g'y/.',.

• x g.:.

.c 3

V-

.f.

, - 2'fp:.

,. p ' ; 9.,; -

r

,4..,

O OD % o Me. cue.

c g.a

. ; v, p.4

..+, 7 g-.s.a,9.3.,.,.,.

.s P

( y P.1. ta iw (:;. f g o

y... -- -

, p

. q

+

..u'y:~....

N.' J:,/.3. %4:4.r., E..,

y. <.

.... w E

pr>

a o

c

~..

..w:

/. s's.

, p....

,(

. r;.

}f ff.4fp

-l:?g,'. ~ ~ ) }Q,Ag.. '(i.

\\' f -

u g

. f. O'.*V3h j.Q.,.

..d.

b s' W i '.;.u. M 2

,M Q:.}lL.;4Qj-x.e u -, o- -s/.m....

... m..

r cr

.~)c.-. '. -

.k.,,

~

~.

,y;

,s. g., 4 ;#rg.s. _ g.p.4

,t..

s op

+

.y.p, n,..~

.g.

, p.., a w w

., g g.

o

/,..

4 u.

d

---

' -. W-... ~,.

~,

/-

g'

.p s'*

., e,Y

.)e - M

. '..Z) *-.% t p

c.

..Q.

,f ~

w x...

n.,.. a..

<.c.

y 9.,C10 0s,.'.,,.,,;f;,.2 0 k V l. t g, i8 5 / 9,9 0. _ @; ',.M E

O

+=_

EO m-

E rGUREO o

_3 y

o

~

j i

l !

o I

i v:.

l v.-

? ;, n N.. h ?

o

..t A. p.p.w ;.;;

. r,t

=

.n :-

7-p.~

,n.-

.M *:$%

N!

~

A

,.w

. z....

.r

~p,

~. w,.

w, ;,.2.-

. w: - }\\.-

h. dl I}

I

[

.I e

p I( yf,: f,$ j*M' h(

j

%.hf,f.hj.$.e:.h ll Y&[t.,'

• 4, c :g E

g o

W

\\

~

+

m p.4 x ary.g. c.%

• h h6lf*i.5 fgdV

.- q.1. pg.;cQ,;..,..

t

~

f/'fh.k.

sYhtfi:h'f.f..t. ghW N

s

([y,;;.2.

..;M&;;;Q&J 4

a.s

.. ' w.p.. -

~

' 4.

Jeg;...,_. ' ?. a. p.'?.?.yh

• b.g. ?.M.- :..

-r

..T{Fj' ' :)

O

% '-:,x e..

g j [ N) 4.d.-$k;.Es

s.,, t.

.E.f.I A

'M

.2a.p.,igf':.&:--:isc.f.s.

3...

v.

21,

p..

.

yl;:. G*.

e c

R,

, $i i

ntW ti%,*4l o

v' ' -

p:4t?. gp' 7%f.gg*[t$-(

~

2p.A, hay.'((Y_. ~ ' ** ; # ' K 5'{ f2 h V Y *s,_QR y

.N

~

L.L

~. :-

CRACKl NG FROM MAIN FRACTURE IO

0 11

• ".u.d,.'..f'; '. ' l. 3 l c, (d( *,n (., (( g.' *.,

4

,.-7 4.9t' 3.,.jip t

,, i ' -"

, r, d(. y,,+j j -

N ;:

e a,:

b J.1, yy y

,s.,.

aL p'.

C.<y

.;.r *v.; e

..  %.m., :.,.

t",

p c '0 5*,'v:.'. ( A '.

O

.s-Q'g'j;s?y:fy"4+>%gk.

y, kve

3. :,

- +

~

J-q

./ ;;;

z I^.

W;;. _ - g

,y S y,-

. ' :.W, g%.tjp # -j:tA,;.',.Pg.,'~H.y,y.'p'

^.

,.,4. L :

v

(

.?-

..w y

. Ib8.

7,.2efg-T

,. v,, ;

,,.,' y ' #j c.

b.

_g %

mi

p. i *$.

4 ',

t.-

%.,, s

.w a. <

e

. ; R',.

t f,;g :. 4 :.1

-c

,f

%,.. f @,3, A L. i.>;..

x :.T,a

~_ ;

' l}.g.

• j..k

.I.

eW.',i...',..'.

g., d. "' f. i $ c.c. py/; ' y, j ; : J A, 4 ' s #. f '..Weg d', Y.. ' C;.,q?.L,..*'..' @ 'g

>.%, b.,. TX,i.,.% '.*' '.,,,ji 'L &, *.. ' # c' j 'h*, *.Q l. q l{%:.[.,,. (- l#

,,_,d.'

_ i %...

h Q

.i

,... Q,q.

6 %., - j ' qw

-.,;'w-L. 9 ',. J- '

',i,.'.

, :..;.. -. y,,. e fv, 3,,

'%.~,,.'.o'.~ ' t;;.

., d, p p f.

4 g.. s '

1 I

q 7.'.

a,3...,, i., _': ;f ';g' t..

's -

' k, w-V.. ',

' c. :... i,. \\9 Ce e > 7% >

-[l A.."~

u

'. 4 $/7'C M,.

o.

" %, @.,.p '.s, f

,t i,S

• o

.,7 '.

• g ; -. J,.. f..

g,1, {

• i p

1

. f ^,,

A

.'.., sG

>',\\

o.

~.-

.ges; R,. ', 4

.4.. )yc. y,.,. ?..

4,. 3. '-.,j ^., -', '..

m..

5.,,

v.. :

< a C, Q. n:>

1, t

• n.,.

~

u c-s.

.x

,. - ? Y c'?

.. f,

, tt

..;. " t./..,.

M J.,%, (.';.. + +

..{

. o.

?

L

• 4-

., 4.-7.%'[.

., h. l 2, p,. y ~. *

(,<'.>

,,i.'ll

• n.

~

..%. m.

,, 1 4,

y

-, e' t.*..

- 4,

?

m

.A Y..'*.,.g' 4

4;.

l j.~, v '.

Q g '.,, Q.. ; 3

.r,....-

. s.

? z..? ( ' *.

.. +., n. k,.....

,4. %.

'. m ;> z:

n,. +h..

. gr,, ; ;,

.n...,, L

.'.v n-

..l. :

p

.,.n,e

.R.. :, b )..... ". ' M g '. * ::

s.

4 1 -(.,, +..... m,,..

r s,

c.+.

d 4.,. '1[,

'.; = y (,Y.;k. h ey. % ' O y, -

~

. ':n,.. ldj * % :q,L [

(-

'y l \\ G '. l, '.J. - l r. :.s,1$. !f ? 4,

.T,. *?

...J,.

.. y

. g

. ; &.e. {. w

.. '.$,,% Q <,'..?,..a. V. '/ '..

I;.Q' f t.

m

.r

..a.

• e o '., e.

,c :*..

... ;9. r

../'

.- - +,'..,,,.'S'.

i

... - 3.

. ~. i..,.

3 '. t *, 5,-_./

4, M.

,, f

.[ < ' * ;", s

.,s+.'.,.,..

P A*.N, *,

.-~,,,..,.,...x.g

,p 3 -

..e.,

.n 3,,,.. :.....f f1..,

o..

'., c,,.,k,

,s I

~

...* lU' d

,., i' s

, t

~ag s.

?.w $.

,,6:

,4 c-.

.g.

~,.gY a. : A Y,-?LJ i.i,'x / '%#

• 4 a3,'.,.., or '., ',p

.Y. ' 9 "u'

. # : N,' a,.

.?

hf..f. t.,.h.,x+u.

N k-k,h.h...$ k..Q.S, o.h.. y.N 'b'. k..A.-* N;D...,,.h. $.;.p

. A

4. I,3-t. f..,,..

'.u-g%.,..

• c

.-. 's sf, ',.b-i

$.,,.Q,.)or..

.,c-t w

3

,O.v j <. n $

• ire t

{A y

.y O

Q'.g.<.s/.9[? y 4 Q.,.s.b*g3,.te @..,M.

g #.F 4 ? X:

7. T.O.,p i

.y p&w.$f1 Q

4 tg s

6 V j,f.

J., % <,,,

_., f.i.

+,

4 7* q *'.,. % ' y-

• S. d.sgpf g..

y. ;% e '- Q&... q %,

', e.. n.f ' :.,f'*

,,q,n.R..::,3 cN;4p-z, q:g c.-

s.. A w;, y, '

.0. c... w.,.. %.

m,,

.. 4 4,

g.

j j.. *.,,j. g..j.

• , z. ' j 1, l 5,...

s :..'.~i *, Jar,,t;

' p

'~*e,....

.,. %, /;;

c

g. #, -; g,g je. d.,1

,9

'j

.a eg..,*...+

.y,,,y?,

N + 'f

.,e... i.b w1 * '. k,.,,.

r,

q % fM, ;,y. 4'd 't,, r.

t ;;J n <, a. g.

, 9 7 sq ' >

1.

. e. P; > >.>.. 3

. c. -...-

m:y.,< '...

u.. r..., n..

?..m... ".c

.. v 1,,,

r, w.,l* ' ~ -

.e.

,2 e

• . Ja '.. y ';. 'f.} *.Th ',f:

p p.' Q Q 4 - *-. 4,,.;, 's., '..+, l Y 5,**l,*

Q',).'

",. '..., U ?

'd.0 4~Wh* c {

^..

s :j.,": "&.

~)

v. % V J

• a.8 ? '. -l -

..'s..,%

7'"'

.f f4 ',' y lb. ' R..,,. "

D

.h.N, ./Oh *. {l y jfG@[y;/g.ji,"h.M(47..;..'G,;,3:i,'S%1jY.'K:e,%:f'[.- Q, Q.;.' ;

}.,,y,jf * ?_ '.p:. l ?.':.Q-M.%.;,(. %. W f iy$Q[.y y'.

• gap

_.- ~ ;+

s..

..?O

- f *h Q f

• <f4m,._ ;. ;:.yc,;n.$,f, a : p-sp" y &' U 't

&Y "t

\\

, e< 9. :%.c. :.w

'-p' V*p.,. g

• ?,

g.

w.'.

,3

~: c A.,.+p 4,e.:.q y a.

v.

,y4. i..

s..

+

.o.

~c.

..n.... *. *.

,.,.,. +,,,. -

-m

. o j

/. j, f r

' +,'.y.

W c*.. y f.c 3, d.8.

6

, od..<..

..... p,

. r.., h3

',[.

.,,..., n. $. ' s y

v

?

' 7.

ig- - e. ; w * * ' a s :- :.

.4

'?

. t l-

• YC.'? s -

W + :i % +

,Y.f (_h '(.

(

V, e _ ;~ ls, l k,,'. [, i* i *,'

NI * /

i,. *,, T.+ 4 p:',

4s..%",' [#,,

~

1 / :/. '-.

k. e.$q 'k, %..'s

,x. '-

-, 4 :h...,./ /.

"/.,

-;' p3 3,..-

t.

.e..: j

n,

~

~

g r.5...*" "

.,#.'.e

'(

g.q,,.

.s,..

g.-

..l-b 9

3

• g,:,,f tr. y? ?,

x,y.. k., +i, : ; i. e y.., q **,. g -

m.,

g...x

. e W..

'p~. y.,...

c

.j.. A.* ?4., w..,.

7-

. s.>..v\\.

t*

f.

. in

. Y ';.

2,

.m.

., 4 ;s c..*.nj,a.

.:.;...x. 5..

..ag n. v..

9 y;-

"c

-.. t 'y

.e,. y.'E f - t %....~ y ; v...e.s...;

..+,%,s 9

.. ;r %.m

,c,.,...y-..

,i

n..'. :.

t.,. g.u

-.4

=,

1

$,e

,,a.a-g~, ' yg.V.g.

'+% ' '...'... '. %. ;' ',. k..k i

.,a

'r ' ~, s ',' y,. n. ^.).e'

.. ' a,n.'

.]., :

i.w

,. ; J

', u a

s -

'~.. ',

..,4 3... ;. =. #,...,

- r.

^ 9. ' f., m,

c.y

,'._iy*

i J ' t,,l., ( *

.... ' i 3., - l t,j

• 4; p#

+it O*

p

. 4

/p..+...'.$ #., a k.. L'..

,-.. ( 449.,7,q,y,.,;..,%. y q.. /...$.,.s

.t

. !..Q. g... + '.fr.j'

. gy d *J.*'

.f,.,,..'.- x 4,\\ ~+.,f a.'.

u' t..

x

'. ' s'g,'f'-Q. 7l\\i:lg -.

g&,y,.,.

-..',. 9

• 1 :

, y.%,,,

• y,

wa L,

9 y

.m, e

h )',Qi.",f~ik

?. y. [ -'

. e; m. -, ?....', Y',,,'. _ #..n' f fy R l >A S

• k, f ".3..

s -.

t,.

y

<.. s W

1. ml

Q '.9.q. J l..,

3

, s.,gs,hg ^.....f.?e [ ' QA$F:.' g u e

y.

%lEl j.L*.',. ' 5. :[*

. f l'

S:.

r g

.O

- O m

i, '

~ ' ~ '

• k s."

O s P.

. +4, dy'-

J 1<. j.4.. tu%+

W

.s

,l., 4

. f f.

• >) r.)..g 4,

y

,s. )f '-

n..-

e >

. g m..k..

p -y},

y.

. J.,i,,.

• h ),f '. 4 e

O c,..w v ?'i <

h.

s

.)2 100X

/

/

• I

.A

-,4 e,',7

- 9.. ~.,,i

'* '; ' f - -

c i...

$7 fk., dF4.-., i,. d..'.f/.,, :"N.,.,3 [ 4 -.v' '. '. !. t..,.,, '.' L ' # *?.,...t' 4: ' P.*[,

4 e

W." ?. N. - (

[

Y

r :,

...g..g t.

s%

Q

.,4 ys,s

- g4

t. -

.,,m....,.x 2.n

.., ; f,

.. y. g 1,,3y

(;.

o. p.

.g. ~.,. f y...,. g,,y

~,y y.,.'.....sa.. y

..-g, ; yy...., 7:-.

+ o.

_.,:;s w4yi~, q. g,,.7 y. : ;s. u., 3'. ;.4.s 9,.. n..y ~ - g.am

.;. n;i.',. ~, %

;

c..v.

.s-

• ... ' ' '. wl '..

^ ;* :

8.

.::n ?,.c

.,. 3, v c;;:, 4.

%l

'b. !%,7- >; R..,.

' ;L8 w..'.'.f i,* k. +

m:p.;. + :.,.. ;..: ~a:

.. 3,. n,. : W '.?

a x

~r

~,

g.N, e.%.13,C,j.. fo :. l j[.(, '] Q.....?g.yp.tg';.%.r.~,

;.y

;.. ~.e <..

.. 'r-a.

f, NM[.[.) '

[ %[.g, g

h h

.h,

.hhhd h-2 p Q d. W.y; U. D.l.? M M E D j[ Q. W. V ;

a' hh. ' &.Qs

[

LiJ 1

M h

h'{ h

}O i.

.s

. bo

.m g,.; j.

> #, q % i, s.'*

A..

g q,,,;~ :.. m.n...,.s.f

.y 3 s.

.+

nv g

w

..s.

-l Sg / y*,$ _i':&Q% ' '.* ].,

%fQ$,.,%~ j' ll

&'N ed.

h.

,.ib s

(C d %y,\\ t.,

g-

.'f 9

'is'b[

b

't i' f 4

h

. L., p ~y 3

%M O

F L3n.-&;W .

l

' ?

• m t%g&.2, ik.ht

.>.y v..,.- y;.w.:., w., y h. 4.. :.<,.

g a.-

a.k 1.

q ;.$

r

..a As+

..h y..?. gM.

- M w

.., e.

m 4

. t; :g 4... n.. :.

> $ ;, y n

e 3

k 7"[b' ',(: f,,',T; a..., L,.,.y n

,,' %m,,.c,

...;. ',i.

1 y+

m e

. /. ':[ S.i,w

,%. 1,

,. s..;.,

p e

e U [.[ ' s'. i '.; :,-[r -, ' [ ] ; g f..., M.h W.h [

, n.

, h

',]

2'

,,Y., ? ; 3 :.'.

,4,'*'. '.'. V.

g.3

.i

' ',i q.;,.

U; j.

"i.l

},

,,.b/),M M.

<..f.#".*

,.,.@+

,4

,,',.~..,.?^.'

.. '*5', /f<

i y,

w

., 4,.

. #, q;..

.,v.

.a.:...'.),.n.p n,. c..,.3... ~ :... :. <,7.,c u.y,r..

.,e,,+

.-n..

.4

t.. f 2 n. ::n. p a

. :p -

.... y. _...: ;< 7 s..

e mg

.;. ~. ;

j '..

e: ;.:

. :.y.

g,A )d }.'.:l $ '

'*gc

v...~ x

• .q,k ;*2 ;

.a

- g o w* ti -;,.,

,t.~-

t,

,1 i

-J.g..

j'ji 'y.3.p '., Sh,, '

,,*T.. '.,7, ;, " ':,.

'DA.-',..,,;-.

'a

$:',",, *j(', ! M ', }R,'

4 g

?

• , ' ' +-

'si.

.: ( 7. ', 'q.[,

n..

5

'i.,

B w;

u. :.n. y,....n r.. y a t,

., ; ),,.

.,,. 7...

4. r 3

.. t..

p. 00 J, p. f". 4 a..c re y, p. 'an, n. s eg,e

..a

, w f, = lg.,"]J e

-. L.l y;l g*s w_

. h-

. /*

s 1

, h*.

.'Q.&....,,.,

_,, ;l -

• 2 ' '. f.

,..,,~e'

.>Q, -,

j '.. 2

,y n

... m s -

Kt..

^ <~ {'(i. :7

&,w>w.p'*{yf.; f. y'.'. ',Q.. :

'.,,, o.l..y.s.;') s ; 's.

t n

g D.. :l%bl 3,.f,.f. b ~ 'y;k:y..N '.. '., h..a, f'

'.'-[w. Q,}

,.., ' g.:).

. 9 c.m n,;.,.. e.;u

.g

.s.

. s. a X

.. <..bQ-6. rA( Q. '.,'t.Q

... e-n.,

mo n.. 4., :,?y; -. :;,. a n

.w.

s M,.,.

y V..:

..r

.?

, sy,s.

.?

. n.,.,,;...

p.

. J.. ': ': y+.: :,s'.l.., ? 'q ',l%. %v.;.,, t'[.,.

.L. N, +, d.,'. x

. Y. y.,

-?

.. s,

.e

?

i Q jf ~ ;.,;.i.., Q -RJ.. :,,

A."'

n. g.

. r:.. +....,,; t '

5

-,,..;g. 4 2 M

'. " e'~w. f..,,., ; ?yc, %. :,

.s,.n...'%.,, %. 7.p%.Y ~,t,

s p

t.

M..,f..W.. m. v' ~, y~.,/ dqpe, ',

7

,%. s

. D,)[ { j g<

, [,[ [ h.) $:',.

, jg

..R 1.

. o l

...: ',.. t, w c y cf.

'v

$ g

!. p b-[W w p(. 4.k f.,k,

~J

~

'[

. [ [ i.

1 m < _.gpg.; 9.g;;;. 9g o

.m

~ _ _ _

K

~

O G

i

- I R E 13 B

O E

5 f

-s O

\\

=

E r

1 2

t t

i O

H

~

l J

u e

r TN

$.k O

7

' '. [$gt, p * [.

!.7hi t

- + '

.,s OX v-

,.H &n. R..,. ? f't. J f.t

• V.%e. ' D.s E

. uu 7..fe

._ m. at w u...

?

=O E

3..ggbw..W.. -l.?.;g....Q..,. M. c:.SC,: -h.. f, ". >P,j?4.gf ?j??: -:f.g)$... q j

.W $1$

b..

.,:,.,.L. >. sg,..h.'+:, p r :p'q.

.. 1 ; l '(:..';,1.q,..c.,....%..., :.,. ' ',,-- :

,.y., :

%f,. o,. -

c g

.g e -

, ;. 2., 9

. %.,,,1,,.

,. 7. '..ij.,,.. e.. ?. i'; k.'. ~.,&,.

.I,.

, ;, e, x. !. -

g

..... -.. s.;

2.

,..;.'* ', ' y,... ] l'Mk' g.,...,y,#-

._4

...,y..

.e

e..

~. * '

$ y.

)h '6 J. [...['d. #

g y',,....;;. w.. n$,'",.',,'-[,',) D '*..,';('.T'#

.,3 (.E -)

,,.. :i, 'n y c ;, y:. lL. z l : y. 'g'; '.,,;j f:;.., ' ;..'.sc) 4 yf a

+

,a O

.f

_L '. > ^;. i 9,

+ :.

.,c

+;Q T

g.L. ',;?,n,..., ";. t M ' '.;l,. g 4.;,'.. sg4, ?;,,->.,

y 0<;. :4; o.. q.,

,

• g jm.. 't,;v;."y.

g,,

y.

r

. ty,, y.,r >.,, e.9.. ; 3 v. ~

.;., ;...m.. <;.1.,. a o.7 4.:,,.....,:

+:

a<.. : :g. A

=

o..

y.

, y f, _.:

%';,,'w(;..a1,,,.6A

,y

.a.,':l.

• ? +':.,.%.\\.M3f.gh %.:.Q....Q%;%

?

.,....-. x.s,

.n

v.. e,.

'.., a: - -

..c.

., san.p$

l pi.'A y

f..y 3

1 gy.

u o

O i

}

h., g,fj yg !:q..,. Q$. y}f..;y,yn.1 Ma.=p,;

?

r

.;M,...., y e,....,. r

.f.

1 o,ox, p.a

• y,

. T

..s.c y...

..r

.a-e:

x

. ~,f a.. m 4.,.,,7 g..

y e

,a.

..,; t s,..

.f.,

R

... ',; ;.S i{ ;_s -

~,

4 a

n

.s r;;*n y y

...es.,1 m

u -

.u m-4.

o

',e

=

er h

W E

N./

'5 J

m y

-_i..i--....i i

~

E

~

O

^'

14 h

W q'.

l.

. ti y

3,

' '; ' ;.% '. ? " g.,,,. 9. 4.

,,i,4<'.

= p,'4.t<

3, ;.g'., -. & j 4.

3-., p g,,. $' p,,- i..,

a..

y+

r J,,. p

', q t t,,

>l'. :).' % s.'..)

. - t y..~f.

' ".,. r.

, *. p *.'.# :.,,.p* i [li. N.,,. ? ' ".,!

r,_

e

,(

,ej.

g. -..

• V,. -

yg.:..;;,); p.;i 5.....;.4. :.z ;&, f!.,.f.Q 3. :4 ' '.fp

.?+.

v. -.. : ;., '.9 M, u %.,.:.g.,_

'V

%,,n,.

...u..

v O

,L

c...

w

• . s *.,:.

=

i...\\.,,. 9 :.'o.

5. o,~

.e.

.n a.,~-

.s.M.

.y?.

.,._, a; 4.,, v..,,. s?..

6.. -.

y,

.,r

.., +. '

+.

y 5....:.a., ;..,-

...r.-

p....

.r e

.., ;Q-1,

-e.,

i,..

..../..

• Y

-l h.4,'fy.d.g ". e, s(.c.

"t F

e

.... s

.' ('l..]p,.:

ie J -

y j., Y, ('

4 " *~ l M..i

.# i.,i t

. :,i i,

...:. rv

,w n..,l, e.m. p. 3(

t

., '., " $., & % *a,',.. '. ',.',p..J,' i,'i,...,l

f..,.ii-b,?s'.,,c.-

'(,.. e.

n.

N*

...e...j ',j Q. f N N,,$kh. hQ !k..s.N.?.? $iN [ kl f.A

.4 s4

,a s,..,

.. yhN N

O

_,, J., e ~, ;. -

- ~.

3

e 4....i - ;..

n g

k.

'h.{ ['

..,6 d5 f{ fI' g

O N'

'*f g*',

i.

~ - -

/

x.

.,isi

-i..

i y;f,p. &.,' {,k?)* f~s....

.hW

~

i, l

{

c m.

y

..i g

r e-p' a 4=,n

)'. * :.,,.o -

w

• j,

., ar8' m

~,.,

O

.' ~ 100X e-lUc L f.Q+: *.ll.2 (f._'..,, a}.3 y, :. l y %..Q%ce s A,y,,,. -

L t.8M...

.e

e. l.

.,. y 4'Q' - %, ah,7.' "; n s ps6, ~ m.D. %c..,

,,y' n. 3,..

.id

+ +

... sst

~s...

s O

c.. l? '

/'. ;RP. '.T6f:$..

t; o..,, W. a. > :. ;g;,,. y.

3,:.: g <.

.s.

s,

.t.3 g..,;

f.p. p,q.4 s.

s.,..,.4

%.,a,.. j..

,7 c

4 f,. r,......,f.. s. - %..~..

.e.,.. 4.,,.,..

r

..s....

.,m..

..,.m 1

.a.

c.,.

e. ;

2

....,..c

,.' ?.: ;'.s n

r. j.,... ;:

..s

,r -

.s, g.

,. : '...t g..

y %n. 4... - s

.a

-, s,, n..

.e

,.. w :s ;

.... y. a. c,.~ s>; n.,.

3~.,.,..,.. - -

+

s

...p. ;p

c. i ;...

.e - y.

f k< -

. ;, v

. ;.qq, ; g.y : ; :.*,- jn;-l,.,. b' '.V

$g m.

~

s p

'r. %. c.k:6 %.4._.f.,,1,!.

. ~, g f.':

.4 5:

t.

9. :c <,

g

..e-

...;. i..a

. w... ;.

se

.s

,. m.M....,,, 7.+.4 av E

a:.s..y ;,.s.

14- - [ ; *,4 p A.

. ~..i' n,.,9..n...

y q, y

=

e

e..,

e.

..a

. I, *. ' ',$,

I'j ';h,

• v. g 'I [l =

• f.

T. $'. k i o

.,#. -A. m..

.%~

m: -

m r % m.s

?

'p

('

x-o

+ y_.;. 7.

, f;r.. ?

ew

,u -

's

[..

i j. ?

1,..>. ',g. L,. -* 1 m + ". / g -

_..~4->~g'~. _ g -v" s

4.; n

~

O

- 7 v

1

,, c c,

7 ki.

4

$ ~,*,

Y,.

• s ',

M.3 p.

,,, I... >#..h: h s C

i NQN N *

. E..

c o

• $ s ;.

4. M[-*j.

Q' -

(, <.s+f' p

m.

5

. 't.

af 4..-

A

'5 S.

a L

z.m

.. :.%:./ v :.y,.-

. ~.-.'. :.

'.- 2" ;..';.,a

..2 s-s lO W

~E.

i.; N.9'.Q, r::) {im s.,.-

2 n <-

g

~

,i.J,.t. s h:;. m',

~*

[ - l'.

~.

' = " ~

0,:. -

..O t,;,y

.s i

- g

.=.c.

v. e.. e f, '.

. i + 4 jy.:. e.,4 ;*] '. "-....., s',;*,i.. d.' A :.* :.'

g

.e.

.. E:.

e -

b-yh, o:.

4a O

sj *~.?.~h*F.,lN. ;,,1.".:( >.:.,$f*

G=.'.*. E ;lp +

1f.6&

. t s.

e

. 6 a-g

. - vej,k,,'. ;. 2.,Dra.~4s-+,.% w*t,y,s

ni n.?..- a?&'Ay M. K.h 7

. ll%.v,.

vi J'~**~*

7-n.u c :,.3.g.. Q* k_&.V.s d= J. g 'f,;g Qy,h,9y,g,, i s

.' Y, s

.., -, i-r

. =::,.as' /p*krp,.

M, th

"'*-9;*.J.y"~.:1.;

u.,.+;&~t.,,,g

+v f,.:Q.S 9#-lM@~%pr'@' g.h.g%j s.t:.*.

.Je ;.

J4

%w.n$..,,D. M,{I2b

_ GU h_. @

ffM

O

. -s,p' a

' t$P. yQ.,,.

O M Q'W P?%%

hkb..?

Yk'hN,'V $<.

.:$f

? h3i:$ '%.2 & ;:.' %ln.M2NMW.a.$dn&

QWME%

i

. d. ;..

'%!2i'.?h-p T,s,q..

NMy w.m

... ~

.s w,..

l. :.

. ;i -

t 4

. w..~ t Fe&

4

.;s

,.. ~ '

i ycy i

H llU li Il.

i Ill U,l ill U.l.lI I IlH H I IlDllli l. i l'il.l1IllIB s.

e

. AQ

.., :a= ~ -. ?.-

2;c.

.&.. w[x~~ ~.;' g.

w;.

q' p, 'g ; q v - ;

lg

..,l f.g,.,,s e [.y.iEN; M-Cah..' y a.y. j'A f w

w

.a x. w.i

, e m v.b.

D Q*A-

• '. &.5 : *.. ?j

• , F. @,, V. i

.s., Is t. $,

/*?

4'*?h. m(~~A.3. p; ; ". &

v

,- 0 9

s. ;*

.c

.: c,,, -

,s 4

t

es,..'. re4

.gy,y...

.,,4 3

i ),.L p 2,*c. :. r y p.-

1

<o

n

' ::~' -

.Qjl.'y+.:.,,,

• N. @<.

C..': :

mea cu:.,2 > ~.yl.4 -

y =.r fr., - : -Q t i e.

. :y.., y.

q f f.

.. 3

O i< :Y,7.,;,...:a su n: '

q s

. w.w..

w.. -

.,. i c

'. 8 T.., e" P.10NN-

. ~. -

1 m _;. q;.s@M;.y. #

d O

4 %e..

p. j. -;..;.4 e.

1r,

.-i a..,

4..c =.c.

,2.. -

)

w

. n.,z. m.. ;. -

..~...<:.....;,

h, %w %..s:c'.q.'. h. w ii M e;.,' @,.,...

. e -:. 4,

N

..n.g

... ' m,.

p:' ': : }r+ ?, '..

R;G:-%,:,:.,

?. L.. -

-. ' n.:. *.-.

s'u,...

s.. $

g..:s, :

4 '. f.4;pq@9.Q. Pu'<;rr-- "40f. v.'.v. qp,N o

f

.7 X+ -

.W et,.

,.~

'. g :V TN'.c %... d'. >

',o YW'/ ' ^.

4.. 3.:

s;7;..W is

'e '

.:6 f.-

.; A.

1-1

. *

• d.: '.'.;. f>% 4, s... 6 y.r,'

A,,

. ~< :...

. ~?,'s f

c'.:..,'

W,.,.. Q. Yh

.t 6'-

[

l}'j]llf.).g.A,(,;.,-o..ll\\flh hl l]

. sq 9.a' :.

l O

. i:*..

. f.rs % t. ;.

r - -. W ?. :. i:..N,P,I-J G:l o s3t* :.c,.,7,, 9 <. : ;s. i

- /yso

-' s'.i' ;. n.,-s. wo -.., J:-Y;r.~ g-~ r

='J,. g/.'-h.9.{#.

,.w b.. %s *p %"h',(3.. F l: 'h 'A, %. gh b,.

. [.*

i-vf

,,f<,*

' g.)s

• '4; a

• 't ik% -

.f

.e.

.j 4 a

, V/

v.,

.f v,r %

.r.

i..,.

o

-