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
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
Journal title :
Nuclear Engineering and Design Eslah
