Title of article
Short-termrupturestudiesofZircaloy-4andNb-modifiedZircaloy-4tubingusingclosed-endinternalpressurizationOriginalResearchArticle
Author/Authors
YZhou، نويسنده , , BDevarajan، نويسنده , , K.LMurty، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
11
From page
3
To page
13
Abstract
BurstrupturepropertiesofZircaloy-4andNb-ModifiedZircaloy-4areinvestigatedattemperaturesrangingfrom638to843Kbyinternalpressurizationofclosed-endtubingsamples.Variouspressurizationlevelswereimposedandrupturetimeswerenoted.ThedataenabledanevaluationofLarson–MillerparameterandthepresentexperimentalresultsonZircaloy-4wereinexcellentagreementwiththosereportedintheliterature.Theeffectof1%NbadditiontoZircaloy-4wasstudiedsincethesematerialsarenowknowntoresistlong-timecorrosioninwaterreactorsandarethusconsideredforhighburn-upapplications.NegligibledifferenceswerenotedintherupturecharacteristicsbetweenthestandardZircaloy-4andNb-addedZircaloy-4.Inaddition,alimitedamountoftestingwasperformedtocharacterizethehoopcreepbehaviorofthesematerialsusingacreeptesterwithhoopstrainmonitoredinsitubyaLasertelemetricextensometer.Boththealloysfollowedanexponentialstressvariationofthecreep-rateathigh(>10−3E,Eistheelasticmodulus)stresses.Atverylowstresses,viscouscreepwasnotedidentifiablewithCoblecreepcorrespondingtosmallgrainsizedmaterials.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894665
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