Title of article :
ApplicationoftheSeebeckeffectformonitoringofneutronembrittlementandlow-cyclefatigueinnuclearreactorsteelOriginalResearchArticle
Author/Authors :
Markus Niffenegger، نويسنده , , K.Reichlin، نويسنده , , Kalkhof، D. نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Themonitoringofneutronembrittlementandlow-cyclefatigueinnuclearreactorsteelisanimportanttopicinlifetimeextensionofnuclearpowerplants.Amongseveralmaterialparametersthatmaychangeduetomaterialdegradationarethethermoelectricproperties.Therefore,weinvestigatedtheapplicationoftheSeebeckeffectfordeterminingmaterialdegradationofcommonreactorpressurevessel(RPV)steel.TheSeebeckcoefficients(SC)ofseveralirradiatedCharpyspecimensmadefromJapanesereferencesteelJRQweremeasured.Thespecimenssufferedfluencesfrom0upto4.5E19neutrons/cm2,withenergieshigherthan1MeV.MeasuredchangesoftheSCwithinthisrangewereabout500nV/°C,increasingcontinuouslyintherangeunderinvestigation.Someindicationsofsaturationappearedatfluencieslargerthan4.5E19neutrons/cm2.WeobtainedalineardependencybetweentheSCandthetemperatureshiftΔT41oftheCharpyenergyversustemperaturecurve,whichiswidelyusedtocharacterizematerialembrittlement.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
