Title of article
MeasurementofplasticstrainofpolycrystallinematerialbyelectronbackscatterdiffractionOriginalResearchArticle
Author/Authors
MasayukiKamaya، نويسنده , , AngusJ.Wilkinson، نويسنده , , JohnM.Titchmarsh، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
13
From page
713
To page
725
Abstract
Itisimportanttoknowthedegreeofplasticstraininordertoevaluatethesusceptibilityandcrackgrowthrateofstresscorrosioncracking(SCC)instainlesssteelandnickelbasedalloy,becauseSCCisenhancedbythecoldworkandcausesmanyproblemsinnuclearpowerplantcomponents.Inthisstudy,electronbackscatterdiffractioninconjunctionwithscanningelectronmicroscopyisappliedtomeasuretheplasticstrainimposedtostainlesssteelbytensileload.Anewparameter,whichquantifiesthespreadofthecrystalorientationwithinindividualgrainsarisingduetodislocationaccumulationduringplasticdeformation,iscorrelatedwithimposedplasticstrain.Thenewparameteriscalled‘crystaldeformation’andisdeterminedfromthespreadinmisorientationfromthecentralgrainorientation.Itisconfirmedthatthisparameterhasagoodcorrelationwithplasticstrainandisnotaffectedbythedatadensityofthecrystalorientationmap.Thedislocationdensitydistributionisalsoevaluatedfromthemisorientationfromthecentralorientation.Relativelyhighdislocationdensitywasobservedneargrainboundariesandgrainboundarytriplepoints,whichwasconsistentwiththeobserveddeteriorationofEBSDpatternqualityinthoselocations.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894881
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