ML20141K082

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Discusses Brittle Failure Questions Raised at 57th ACRS Meeting Concerning Plant
ML20141K082
Person / Time
Site: Oyster Creek, La Crosse, Crane
Issue date: 09/03/1964
From: Fraley F
Advisory Committee on Reactor Safeguards
To: Kouts J
Advisory Committee on Reactor Safeguards
Shared Package
ML20091A092 List: ... further results
References
FOIA-91-282 NUDOCS 9203180355
Download: ML20141K082 (2)


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Dr. E. J. C. Kawtv, acin8 Chairusa Septeuter l

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aans MITTLE FAILURE 518811058 NEATED 50 m #1NTER MBE AED SE IA SM m

At the $7th ACR5 meeting genetiens sore animma comeowstag the i

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1) MDt shift in the Dyster Creek remeter veesti eering the life of the plaat.
2) Nt of the esseats===t shall at the la dresse mailtag Mater ammeter.

I menticend the first gesetten te 3. Sese na peu sugested ama he wested that leuvia Gashe review the prehlen, tryta appanntly /2 A te discuas his -1=aiens wish are as fallese.

==1'.24 em NRL esta (9 toe ML Boport 59th, htet esteher as, 1963 - 41stributed Acas meeseher 4,1963.) for A3005 steal irrediated at 5b08 F ama ahow $mitentes a maximm== But n' lft of 100-1508 F ser an estposers a

1 of 10 9 met. En does met eensteer the M serwe applisable simw they am based en semples irradiated at 400-900* F amt sesdd, there.

fore, sin a larger Wf shift for em equivalent surposers. She Dyster Creek vessel etil operste at a toeparature of abset 54)e F (maturstian temp.at1000 poi). Es has someleted, thuroftsre, that the Wf shift will penbah1; est presamt a problem ik the Jeeeey fr.ataal rameter.

This eenelusion te, of seeree, hamma en a "bmek at the esvelope" type evaluatten and some vether skimyy irrediation esta in the eritical mae. of intems (300-pos r).

Ic any event, the applicant te apparently aunas of this problem est acoceding to Gashe > to tastall surwillemos specimene la the vesecA to hoeg smak tf its esanitica.

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-In rosard to the apt of the sa creses mestaineest, I how cheehed ths BR stich states that the ester surface of the shall thet is aheve trill be severed with 2 inshRs of Phanglass inesisties plae a 2 task layer af Glasfish te provset aseensively se14 toegeretieres g(. y

'hmtIMmy steel eering en14 sosther. %$ne report states further

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, that "the operating tempenstano amt vessel emotility will be esme14eseN*..

ta the eeatan to mese that the eseemt====t shan v111 respesa la a% $

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Dr. W. J. C. Kouta 2-Septanter 3, @

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his problem was discussed spectriaalir la a supplausset to the M

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d, Emmasta Analysis, dated pobruary 1,1963, ter the sometsution 5

pamatt bearing. A w is attaehod for your interunties.

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It appears tJamt nis problem has bem reenpaised met will he headiat $d-.

adeguntely at the la C43see beseter.

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Attaahment Dupplement to haania Analysis by MAR re Increase Bellias tenwr hoactor,dtdR/1/63.

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