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:130,,:200237315NiInvestigationsontheColdShapingProcessof315NiSteelLowtemperatureimpactenergyweremeasuredseperatelyfor315Nisteelplatesoftwobrands,whichweresubjectedtocolddeformationplusmanualagingandtempering.Theresultsshowthatthelowtemperatureim2pactenergyreducesgreatlyaftercolddeformationplusmanualaging,andthatthetemperingaftercolddefor2mationcanimprovethelowtemperaturetoughnessremarkably,andthisimprovementareinfluencedbytheprimarymicrostructureofthesteelandtheextendofcolddeformation.:315Ni1,,,[1],,,,315Ni,,315Ni,,315Ni2,24mm16mm,315%NiASTMA203E,24mm,SLT3N28,121(%)CSiMnSPNiMoTiV315%Ni24mm16mm0105301050129012101740158010150101001025010113152317401120112SLT3N2824mm0107012501650100101003315801123,3%5%,,2501h322mmsMPabMPa5%AKV80JAKV101J315%Ni241637739250251933357412548105SLT3N2824372529332492283315%Ni(24mm)AKV80(J)AKV101(J)AD766687(74)523656(48)AD+3%+250/1h222032(25)181619(18)AD+3%+T22584037(45)162222(20)AD+5%+250/1h141418(15)101011(10)AD+5%+T22594945(51)252818(24)NT197174162(178)136152131(140)NT+5%+250/1h343746(39)282417(23)NT+5%+T95155144130(143)8410592(94):AD;NT;TXX;;4315%Ni(16mm)AKV80(J)AKV101(J)AD154102120(125)11810098(105)AD+3%+250/1h312838(32)251923(22)AD+3%+T92566145(54)394234(38)AD+5%+250/1h322421(26)201814(17)AD+5%+T92706280(71)534637(45)(),315%Ni,,,,,()375SLT3N28(24mm)AKV80(J)AKV101(J)AD255249242(249)176235272(228)AD+3%+250/1h976882(82)603832(43)AD+3%+T92213196206(205)170140178(165)AD+5%+250/1h668853(69)342823(28)AD+5%+T92240219214(224)190166185(180)6315%Ni(24mm)sMPabMPa5%AKV101(J)AD388381(385)505506(505)3134(33)565236(48)AD+T72395388(392)508511(510)3032(31)765653(62)AD+T92395389(392)516506(511)3131(31)11873136(109)AD+T22379380(380)495499(497)3233(33)9274100(89)7SLT3N28(24mm)sMPabMPa5%AKV101(J)AD452432(442)563531(547)3937(38)260165235(228)AD+T75473437(455)558562(560)3632(34)165217180(187)AD+T95461437(449)546522(534)391542(41)255276263(265)AD+T25452444(448)531523(527)4038(39)251248272(257)4411,315Ni,,315%Ni,(27J)SLT3N28,,27J:(1),42CPVT315NiVol17.No22000,,,,,,(2),CN,CNFe,CN,,()(),[1],,,,,,315Ni,,,,,315Ni,412,,,,,;,,,315Ni,[2],,,,,315Ni,,,SLT3N28315%Ni(,315%Ni8,SLT3N2811),,,,,,,,,,,,[3]3,315%Ni,,5%3%,,5%3%,,,,413315Ni,,(67);,,(T92T95),315Ni,,,,,,315Ni[2]315Ni,,5217298[4],,,,,,5(1)315Ni,(2)315Ni,(3)315Ni,(4)315Ni11..,198121.315Ni.,1997;(4)31..,198041.315Ni.,1999;(3):315Ni,,!:,,1956,,,:,:230009,,1938,,:888,:230031(8)(2),,()2mm3mm(3)C3C(t)[9](4),(5),;,(6),11.().,2000;17(1)21DMillerandCHorton.AGRMaterialsDataHandbook.R66(NE1991)31RAinsworth.StressRedistributionEffectsonCreepCrackGrowth.RD/B/6073/R88(CEGB1988)41PBuddenetal.AnR5AssessmentofHartlepool/Heysham1SuperheaterOutletHeaderLowerSleeve.TD/SID/MEN/0065(NE1990)51IGoodalletal.AnAssessmentProcedurefortheHighTempera2tureResponseofStructures.R5,Issue1,Vols1to6(NE1991)61EKimmins.CreepDataforanR5Assessmentof015CrMoV/2125CrMoMainSteamWeldsatHinkleyPointB.ES&T/TAN/VX073/L89(NP1989)71PGidneyandPCairns.CalculationsinSupportofTheCreepCrackGrowthProcedureofR5Vol.7.TD/SIP/MEM/1753(NE1991)81S.T.Tu,P.SegleandJ.M.Gong.StrengthDesignandLifeAssessmentofWeldmentSubjectedtoHighTemperatureCreep,Int.J.Pres.Ves&Piping,SpecialIssuesonAgeingofMaterialsandComponentLifeAssessment.Vol.66,1996,pp.171-18691S.T.TuandK.B.,Yoon.TheInfluenceofMaterialMis2matchontheEvaluationofTime-dependentFractureMechanicsParameters,EngineeringFractureMechanics,Toappear,199962CPVT315NiVol17.No22000