Title of article
StrainrateeffectsinnuclearsteelsatroomandhighertemperaturesOriginalResearchArticle
Author/Authors
G.Solomos، نويسنده , , C.Albertini، نويسنده , , K.Labibes، نويسنده , , V.Pizzinato، نويسنده , , B.Viaccoz، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
11
From page
139
To page
149
Abstract
Aninvestigationofstrainrate,temperatureandsizeeffectsinthreenuclearsteelshasbeenconducted.Thematerialsare:ferriticsteel20MnMoNi55(vesselhead),austeniticsteelX6CrNiNb1810(upperinternalstructure),andferriticsteel26NiCrMo146(bolting).Smoothcylindricaltensilespecimensofthreesizeshavebeentestedatstrainratesfrom0.001to300s−1,atroomandelevatedtemperatures(400–600°C).Fullstress–straindiagramshavebeenobtained,andadditionalparametershavebeencalculatedbasedonthem.Theresultsdemonstrateaclearinfluenceoftemperature,whichamountsintoreducingsubstantiallymechanicalstrengthswithrespecttoRTconditions.Theeffectofstrainrateisalsoshown.ItisobservedthatatRTthestrainrateeffectcausesupshiftingoftheflowstresscurves,whereasatthehighertemperaturesamilddownshiftingoftheflowcurvesismanifested.Sizeeffecttendencieshavealsobeenobserved.Someimplicationswhenassessingthepressurevesselstructuralintegrityundersevereaccidentconditionsareconsidered.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894706
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