钢中珠光体相变机制的研究进展

24320039TRANSACTIONSOFMATERIALSANDHEATTREATMENTVol.24No.3September2003(,200030):,,,,(Pitsch2PetchBagaryatskyIsaichev),B1,,PP,,:;;;;:TG11,TG142121;TG15;TG161:A:100926264(2003)0320001207:2003201206;:2003208212:(1970),,,,,20,,Patenting1,,,[1],,Fe2C,1111Cu2BeAl2CuFe2TiFe2C:()()+()Hull2Mehl[2],1Fig.1Thestrengthofdifferentstructuresofsteelsobtainedinlaboratory,()[3]()(),()()()(),()()(edgewise),(sidewise)(),()(©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.),1P2(2),12,,(2)122,[4]2,,,22Fig.2Theorientationrelationshipbetweendifferentphasesinsamecolonyduringpearliteformation1,:(a)1PK2S,1PPitsch;(b)Pitsch2PetchBagaryatskyIsaichev,BagaryatskyIsaichev[010],Isaichev[5]Ohmori[6],DippenaarHoneycombe[7],Pitsch2Petch(clean),1K2S,1Pistch;,Bagaryatsky,,1,Hillert[4],2,12,IsaichevPHRTEM()IsaichevBagaryatsky,56115,(112)PP(001)(Bagaryatsky)(112)PP(101)(Isaichev)[5]DippenaarHoneycombe,ZhouShiflet:(1)Isaichev,(2)Pitsch2Petch,(3)Bagaryatsky1999:(serialsectioning)EBSD(),Pitsch2Petch,[8],,,Hultgren(abnormalferrite),,[9],,,,;,,,Fe212Mn2018C1K2S,Honeycombe[10]112,:(a)P;(b);(c)[11],224©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.Baker2Nutting,B1,VMn(MnS+VC)[12],VCMnS,,VC,,Pitsch2Petch,(a)(b)(3)3Fig.3Schematicillustrationofintragranularpearlitenucleation2211,,28%,(degenerate)[13]12%,P(),0131124JPm2[1416],,BagaryatskyIsaichevPitsch2Petch,(VB)(S),ScGP,VBSc[17]:Sc=2TEQT=2vG(1)Q,vQ+,Qi[18]:C()C()Q12Fe2FeQ2(2)2Fe+C()Q3(1)Q212VB,P,Sc,VB,P(C-)P(C-),PPMehl[2]HultgrenPP(4AB),S,(VB):VB=KDcS(3)4ZenerFig.4TransportationandconcentrationprofileofcarboninasutemiteaheadofadvancingpearliteinZenersmodelDc(+)Px1x2,(3)KZener[17],x2,,(G0)VBG0:G0=G+2vPS(4)x2x1,Dc(52CP533:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.x21+52CP5x22),,:Dc(52CP5x21+52CP5x22)-VB(5CP5x1)=0(5)VB,Brandt[19],Hillert[4](Zener2Hillert):VB=DcS(C--C-)aS;S(C-C;)(1-ScS)(6)SS,a=0172(6),TVBSZener[17]S,,:S=2Sc=4TEQT(7),S,,;,S,,T,P,PulsKirkaldy[20],:S=3Sc=6TEQT(8)213,(),GPC1C(5a)Cahn[21],GPP(C2C1)CC(5b),GG0(P)Cahn,,VB,(1)(4):G0=PG+2vPSSc=2vPPG(9)VBG0:VB=-M(G0)n(10)MCahnn=1,Speich[22]n=35Cahn,(a)(b)Fig.5Schematicdiagramoffreeenergyconcentrationrelationshipforsegregation.(a)precipitationsystemand(b)eutectoidtransformation(10),Cahn,,,:DB52CBP5x22+VB(C-CP)=0(11)CBCP()x2(11),ZenerG0,VBS,,;,,,Cahn(015),Zener2HillertCahn,Fe2C,VB,424©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.LiuAaronson[23]Pb2SnCahn,CahnDB,PHillert[24]Sundquist[25,26]()Hillert,Sundquist,,,,6,CI(I=1,2)L,DIj,L(PP):5CIP5t=DIj52CIP5L2+Jj+J(12)6PFig.6SchematicillustrationoftherelationshipbetweeninterfacialshapeandparametersJj(j=12),J,,Henry:VB(T)3exp(-HPkT)(13):VB(T)2exp(-HPkT)(14)H(13)(14),VB52CP5x2,VB5CP5xSundquist:(12),SCahn[21],Sundquist,,S,VB,,,S,,(7),(hole)(7)(),(lamellarfault)7PFig.7Pinterfaceshapesasafunctionofinterlamellarspacing214,(disorder),VBT,ST2()ST3(),VBT,[27]:VBP(T)nexp(-HPRT)(15),H,188kJPmol[28,29]()(forcedvelocitypearliteisovelocitypearlite),,[30,31],n2217,,Hillert[32],,VB,,,Fe2C,53:©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.8Fig.8Therelationshipbetweenthestructuralandgrowthledgesduringpearlitegrowth,Fe2C2X(X),215,,P,P,,()2,BramfittMarder[33],(P)[3438],(P2P2)(8),,,Lee[39]Zener2HillerthPd(hd)Whiting[40,41]Zener2Hillert,Hillert[42],;,,,,3,,Hull2MehlP,,,,,,,,P100[43],,[44,45],,624©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.1.(Possibilitiesoffurtherincreaseinstrengthofsteels)[J].,1998,3:781786.2MehlFC,HagelWC.Austenite:pearlitereaction.InProgressinMetalsPhysics[M].Eds.B.ChalmersandR.King,Vol.6,PergamonPressLtd.,LondonandNewYork,1956,74.3HillertM.TheFormationofpearlite[M].InDecompositionofAustenitebyDiffusionalProcesses,Interscience,NewYork,NY,1962,197.4.[J].,2003,23(1):113.5ZhouDS,ShifletGJ.Ferrite:cementitecrystallographyinpearlite[J].MetallTrans,1992,23A:12591269.6OhmoriY,DavenportAT,HoneycombeRWK.Crystallographyofpearlite[J].TransISIJ,1972,12:129137.7DippenaarRF,HoneycombeRWK.Thecrystallographyandnucleationofpearlite[J].ProcRSocLondon,1973,333A:455467.8ManganMA,ShifletGJ.ThePitsch2Petchorientationrelationshipinferrouspearliteatsmallundercooling[J].MetallTrans,1999,30A:27672781.9EdmondsDV,ChairuangsriT.Abnormalferriteinhyper2eutectoidsteels[J].ActaMater,2000,48:15811591.10GuoZ,FuruharaT,MakiT.Theinfluenceof(MnS+VC)complexprecipitateonthecrystallographyofintergranularpearlitetransformationinFe2Mn2Chypereutectoidalloys[J].ScriptaMater,2001,45:525532.11EnomotoM.Nucleationofphasetransformationsatintragranularinclusionsinsteel[J].MetalsandMaterials,1998,4:115123.12GuoZ,KimuraN,TagashiraS,FuruharaT,MakiT.Kineticsandcrystallographyofintragranularpearlitetransformationnucleatedat(MnS+VC)complexprecipitatesinhypereutectoidFe2Mn2Calloys[J].ISIJInternational,2002,42:10331041.13CookseyDJS,MunsonD,WilkinsonMP,HellwellA.Thefreezingofsomecontinuousbinaryeutecticmixtures[J].Phil.Mag,1964,10:745967.14CheethamD,RidleyN.Isovelocityandisothermalpearlitegrowthinaeutectoidsteel[J].JISI,1973,211:648652.15KramerJJ,PoundGM,MehlRF.Thefreeenergy