钼对低碳微合金钢组织和性能的影响

1,2,1,1,1,2(11(),430083;21,430074):Mo,Mo,,M-AMo,,Mo,M-A,:;;;:TG142113:A:1003-9996(2005)04-0027-03InfluenceofMoonmicrostructuresandpropertiesoflowcarbonmicroalloyedsteelsKONGJun2hua1,2,ZHENGLin2,GUOBin2,LIPing2he2,XIEChang2sheng1(11TechnologyCentre,Iron&SteelResearchInstitute,WuhanIron&Steel(Group)Co.,Wuhan430083,China;21HuazhongUniversityofScience&Technology,Wuhan430074,China)Abstract:HowthedifferentMocontenteffectsmicrostructuresandpropertiesoflowcarbonmicroalloyedsteelswasstudied1ItwasconcludedthattheproportionofacicularferriteisincreasedasthecontentofMoincreased,theyieldandtensilestrengthsalsoincreased,ontheotherhand,theyieldratiodecreasedandtoughnessdeterioratedasthequantityofM2Aincreased1Keywords:microalloyedsteel;Mo;microstructure;mechanicalproperty:2005-05-27:(1969-),(),,,1X8021X80,,C2Mn2Nb,,,,,,[1],,,X80,X802C2Mn2Nb,00110%0120%0130%0141%5,50kg,500mm15mm1,OLYMPUSGX71FEIXL307220058224August2005Vol122No14STEELROLLING1wt%CSiMnPSNb+TiMoAls1201021012711810100601003201088-010152201022012911860100601003701090011001017350102601311190010050100370109801200101742010220129118601005010038010800130010165201022012911830100601004001078014101014:CuTi3311Rt0.5Rm-2011Moa);b);c)-201,Rt0.5Rm,RmRt0.5,00120%,Rt0.512MPa,Rm47MPa,Rt0.5Rm,-20,0120%0130%,,C-MnX80,0120%,Rm,Rt0.5,;,,3125Mo,2Mo;0110%Mo,;0120%Mo,;0130%Mo,;0141%Mo,2a)Mo;b)0120%Mo;c)0141%Mo313,33,,,,M-A8220058,0141%,M-A3a)Mo;b)0120%Mo;c)0141%Mo4C,,,,,C,[2],,,,,[2],Nb,,[3],,Mo,[4];,NbNb(CN),Nb,,,[5],,,Rt0.5,,,0110%,0120%,,0130%,M2A0141%,014%Ms,,M2A,0120%,,,,M2A,5(1)C2Mn2Nb,0110%MoMo,,(2)Mo,,M2A(3)Mo,,Mo(4)C2Mn2NbX80,0120%Mo,,,M2A,,Mo,M2A,,:[1].[M].:,1987.1041[2].[M].:.1988125-301[3]PerelomaE.V,BayleyC,BoydJ.D.Microstructuralevolu2tionduringSimulatedOLACproccssingofalow2carbonmicroal2loyedsteel[J].MaterialsScienceandEngineering.1996,A216:16-24.[4]ColdrenA.P,etal..MolybdenumContainingSteelsforGasandOilIndustryApplicationaStateoftheArtRe2view119761141[5]LeeW.B,HongS.G,ParkC.G,etal.InflucnceofMoonprecipiationhardeninginhotrolledHSLAsteelscontainingNb[J].ScriptaMater.2000,43(4):319-324192224: