Title of article
EvaluationofirradiationdamageeffectbyapplyingelectricpropertiesbasedtechniquesOriginalResearchArticle
Author/Authors
BAcosta، نويسنده , , FSevini، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
9
From page
165
To page
173
Abstract
Themostimportanteffectofthedegradationbyradiationisthedecreaseintheductilityofthepressurevesselofthereactor(RPV)ferriticsteels.ThemainwaytodeterminethemechanicalbehaviouroftheRPVsteelsistensileandimpacttests,fromwhichtheductiletobrittletransitiontemperature(DBTT)anditsincreaseduetoneutronirradiationcanbecalculated.ThesetestsaredestructiveandregularlyappliedtosurveillancespecimenstoassesstheintegrityofRPV.Thepossibilityofapplyingvalidatednon-destructiveageingmonitoringtechniqueswouldhoweverfacilitatethesurveillanceofthematerialsthatformthereactorvessel.
TheJRC-IEhasdevelopedtwodevices,focusedonthemeasurementoftheelectricalpropertiestoassessnon-destructivelytheembrittlementstateofmaterials.Thefirsttechnique,calledSeebeckandThomsonEffectsonAgedMaterial(STEAM),isbasedonthemeasurementoftheSeebeckcoefficient,characteristicofthematerialandrelatedtothemicrostructuralchangesinducedbyirradiationembrittlement.Withthesameaimthesecondtechnique,namedResistivityEffectsonAgedMaterial(REAM),measuresinsteadtheresistivityofthematerial.
Thepurposeofthisresearchistocorrelatetheresultsoftheimpacttests,STEAMandREAMmeasurementswiththechangeinthemechanicalpropertiesduetoneutronirradiation.Theseresultswillmakepossibletheimprovementofsuchtechniquesbasedonthemeasurementofmaterialelectricalpropertiesfortheirapplicationtotheirradiationembrittlementassessment.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894708
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