Cr-Mo钢的回火脆性及其评定

Cr-Mo()Cr-Mo,Cr-MoCr-MoTemperBrittlenessofCr-MoSteelandItsEvaluationYangHailing,LuoYiyingandYangXiuqin(CityConstructionHigherLearningTrainingSchoolofHenanProvince)AbstractThispaperbrieflydescribesvariousfactorsaffectingtemperbrittlenessofCr-Mosteel,introducesstepcoolingembrittlingtreatmentprocessandevaluationmethodwithrespecttotemperbrittlenessofCr-Mosteel.KeywordsCr-MoSteel,Temperbrittleness,Evaluation1,Cr-Mo4551Cr0.5Mo1.25Cr0.5Mo2.25Cr1Mo;4553Cr1Mo,,,,,250400500650,,1,2,400600()2,:1.1,,1.2Ni-CrNi-Cr-Mo,Cr-MoCr-Mo(2)22.1,PSnSbAs,Fe,,,,,P,Sn,SbAs974,PSnSbAs2.25Cr1Mo112.25Cr1Mo(0.01%)CSiMnCrMo4.31.51.30.80.7(0.085%0.167%)2.25Cr1Mo,,0.15%;SiMnP,,;Mo(0.5%0.7%)P(Mo3P),P,Mo,MoM2CMo-P,MoCr,CrMo,CrM2C,Mo,Mo(VNb)2.2,,,,;,,,,;(),,Pt18.520.5103,,Pt,2.3Cr-MoCr-Mo0.5Mo1Cr-0.5Mo1.25Cr0.5Mo2.25Cr1Mo3Cr1MoCrMo,2.25Cr1Mo3Cr1MoCrMo,,;1.25Cr0.5MoSi,,;0.5Mo1Cr0.5Mo,33.180,(X)JKJ=(%Si+%Mn)(%P+%Sn)104X=(10%P+5%Sb+4Sn+%As)102K1=(2%Si+%Mn)XK2=(2%Si+%Mn+%Cu+%Ni)XK1K22.25Cr1Mo3Cr1Mo:J150%,X1510-6J100%,X1010-6SnSbAs,,3.2,,0120014VTr54(AKV54J),AKV,,400(),,,Cr-Mo,35,,300600,,,,,3.2.1,:3.2.1.1Gould5931h,53815h,52424h,49648h,46872h,316,3.3Ni-Cr-Mo2.25Cr-1Mo3Cr-1Mo3.2.1.2Socal5931h,53815h,52424h,49660h,468100h,316Gould,2.25Cr-1Mo3Cr-1Mo3.2.1.3Swaminathan1h,53815h,51015h,48224h,46872h,427100h,399168h,,1Cr-1Mo-V3.2.2Cr-Mo,,AKV54J,Vtr54+A$Vtr5438:Vtr54,AKV1154J;$Vtr54,AKV54J;A,80Cr-MoA1.5,90A2.5,,Cr-Mo:Vtr54+3$Vtr54104Cr-MoCr-Mo,Socal()Cr-Mo22Cr-MommJJVtr54$Vtr54Vtr54+2.5$Vtr54()1Cr0.5MoSi82191230248216255203-66-3-73.5188209231210179194-50-2-5512Cr1MoR14244230225214234219-656-5060202197205172219172-503-42.52.25Cr-1Mo92261272273210230246-7310-48239233233258293273-50.57-3310CrMo91080293292292283288288-67-1-69.5294294284291279286-65-3-72.52:Cr-Mo,,Vtr54-50,Vtr54$Vtr54,Vtr54+2.5$Vtr5438Vtr54+3$Vtr5410Cr-Mo55.1PSnSbAsCr-Mo5.2,Cr-Mo5.3Cr-Mo2120014