正火温度对T91成品管组织与性能的影响

100083621701T91CCTT91Ac3905Ac1840Ms420Mf2400.1/s0.1/sT91T911040T91CCTEffectofnormalizingtemperatureonmicrostructureandpropertyofT91tubePIHuachunHANJingtaoLIUJing(SchoolofMaterialsScienceandEngineering,UnivesityofScienceandTechnologyBeijing100083)BAOShanqinNIMingguiZhaoYuejian(SichuanChangcheng&ConcordStainlessTubeCo.,Ltd621701)abstractFirstlycontinuouscoolingtransformationCCTcurveofT91steelisdetermined.ThetemperaturelinesofAc3,Ac1,MsandMfareconcludedforT91steel,whichare905,840,420and240inturn.Whencoolingrateislowerthan0.1/s,theprecipitatedmicrostructureaftercoolingareferriteandperlite.Otherwisethemicrostructureismartensite.AtlastEffectofnormalizingtemperatureonmicrostructureandpropertyofT91tubeisstudiedonfocus.ThebestnormalizingtemperatureofT91tubeisabout1040.KeywordsT91steel,CCTcurve,normalizing,microstructure,property1%%CMnPSSiNiCrCuMoVNNbAl0.100.480.0080.0060.310.078.690.110.900.200.0420.0850.0031T912T91CCT3T91(a)()(b)(5)(c)(d)+()%CMnPSSiNiCrMoVNNbAl0.100.390.0120.0010.300.0568.210.900.190.04960.070.0130um30um(1)(2)0.1(3)T91(4)780T911040bs5.0dHB(a)(b)20um20um20um正火温度对T91成品管组织与性能的影响作者：皮华春，韩静涛，刘靖，鲍善勤，倪明贵，赵跃健作者单位：皮华春,韩静涛,刘靖(北京科技大学材料科学与工程学院,100083)，鲍善勤,倪明贵,赵跃健(四川长城协和钢管有限公司,621701)本文链接：