Title of article
EffectsofoxideandhydrogenonthecircumferentialmechanicalpropertiesofZircaloy-4claddingOriginalResearchArticle
Author/Authors
JunHwanKim، نويسنده , , MyoungHoLee، نويسنده , , ByoungKwonChoi، نويسنده , , YongHwanJeong، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
7
From page
1867
To page
1873
Abstract
MechanicalpropertiesofZircaloy-4claddingwereevaluatedbytheringtensiontesttosimulatethecladdingbehaviorunderthereactivity-initiatedaccident(RIA)inahighburnupenvironment.Zircaloy-4claddingwascontrolledtohaveahydrogencontentupto1000ppmandaoxidethicknessupto100μm,followedbyacircumferentialringtensiontestwithastrainrateintherangeof0.01and1/s.Theresultsshowedthatboththeductilityandtoughnessdecreasedasthehydrogencontentandtheoxidethicknessincreased.Hydrideinsidethecladdingplayedanimportantroleinthebrittlefailuremechanismbyadecohesionbetweenthehydrideandthemetalmatrixaswellasapreferentialfractureofthebrittlehydride.Surfaceoxidealsoaffectedthemechanicalpropertysuchasareductionoftheloadbearingarea,stressrelievingeffect,andsoon.Correlationbetweenthein-reactorRIAparameterssuchasthefuelenthalpyandout-reactormechanicaltoughnesswaspostulatedanditwasconcludedthatthechangeofthemechanicaltoughnesscausedbytheoxidewasmoresignificantthanthatbythehydrogen.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
941306
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