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(),,,StudySituationandDevelopmentTendencyofAutomobileSteelPlateKangYonglin(BeijingScienceandTechnologyUniversity)AbstractThispaperexpoundsthepresentdevelopmentsituationofautomobilesteelplateathomeandabroad,analyzesthedemandsofautomobilestructureonplate,thechal-lengesteelmaterialfacedwithandtheprogressofautomobilelightweighting,simplydiscussessuperlowcarbonandcleaningcontrolforsuperdeepdrawingsteelplate,thelatestprogressofnewtypeofhotrolledsteelplatewithhighstrength,coldrolledsteelplateandhotdipgal-vanizedsteelplateforautomobile,andalsoputsforwardthatthetechnologystudyanddevel-opmentofnewtypeautomobilesteelplatemustbepaiedattention.KeyWordsautomobilesteelplatestudydevelopmenttrend1,,,,,,,1015,,85%,,50%,,,,65%,,,2015,35%,50%,,85%,,,[1],,,,,,,,(100083)120036鞍钢技术ANGANGTECHNOLOGY22.1,,;;;2.2,56%,40%,,(),511210,,106010,(ULSAB),34km/L()100km/3L(),25%,,(1),,[2],ULSAB:,,ULSAB,,19851995,10%30%,,6.79.3,,357104L,1,,,780MPa,,,:780MPa340(2),[3][C]0.001%0.0015%,RH20000.0016%240POSCO(0.0064%),1970mm,220036,,,0.008%42070,,,2080DP()BH()IF(),1990-,TRIP()(3),1000MPa,1200MPa[4]34.1,,,,,,(HAZ),,NbMo[5]HAZ,:(1);(2)HAZ,NbMoHAZ11(wt%)CSiMnNbMoRm,MPaA,%0.010.010.600.030.20470344.2[5],,,,,370590MPa,CMnS,0.09%P0.25%Cu0.02%Ti,PCu,,CS,,,Ti,2MPa,%CSiMnPSCuTiAl3704000.0180.010.310.0880.0020.250.0180.0324404900.0290.011.300.0930.0010.260.0170.026+5405900.0470.021.830.0890.0010.220.0190.0263MPammMPaMPa%%3703.828839142.62564003.831941139.22494402.035347537.31424902.040651133.01385402.643056528.81105902.647159625.7105SAPH3703.824838245.2165SAPH4402.536447236.0105SPFH5903.250262826.660:SAPH;SPFHMnP,,Ti32,34.3440MPaBH440MPa(SAPH440BHT),,,,BH(440MPa,500MPa),,,:(1),;(2),,CN,4.420013Nb,800MPaTRIP,,,600MPa4.0mm,800MPa,3.0mm590MPa,(4)4590MPaMPaMPa%K%mm470530610610352490602.3390420600600372560601.4980MPa,20%,,980MPa,,980MPa,:(1)Si;(2)Si;(3);(4):(1);(2);(3);(4),;(5),,2001800MPa,1.3,Nb,23Lm,,4.5,:2050,,SS400400MPa,5Lm[6];CSP(0.06%),46Lm,400MPa470MPa,[7],CSP500MPa600MPaCMn;Q235,,3.0mm1000mm,56Lm,400MPa,Q215,420036345MPa,490MPa;Q235400MPa,4.6,0.51.2mm,3401470MPa:PIF(IFSiMnP)(TRIP)4.6.1 烘烤硬化高强度钢板,CC3:(1)CTiNb;(2)TiNbC,C;(3)(1),CTiNb,NbC0.9,,(2)C,,,(2),,TiNb,,,{111}900[8],,5[9]4.6.2 超高强度冷轧钢板,,,,5r,r,LCr,ULC,,Nb,;,;S,6[10]240,,,14.80%,6,wt%CSiMnSNbCeq1170MPa0.150.451.500.0010.00150.421370MPa0.160.451.800.0010.00150.481560MPa0.190.451.800.0010.00150.515,2080,,,2090,,,,0.61.2mm,8001850mm,2000mm,CQDQDDQEDDQ(IF),BHDPTRIP,,23g/m2,,,,(Galvaneal)160180g/m2,Fe8%12%[11]19802000(4)5419802000,20,:45%34%;19%45%7590780MPa,Zn-Fe(),590MPa440MPa80%,,,,Ni,7590780MPa,MPa,MPa,%780MPa590MPa44035080060023320.550.58590MPa420600250.7088,MPa34037039044049054059069078095098011801270CQ(DP)(TRIP)EGCQ(DP)(TRIP)GACQCQDQDDQBH(DP)(TRIP)EGCQDQDDQBH(DP)(TRIP)GACQDQDDQBH(DP)620036[12],780MPa,1180MPa;590MPa,980MPa6,,,,,,,,(),,,,,,,1.,No.1556,2001.9.25,152.H,39(453),1998,P100910133..:,1999.84BenhardEngl..,20026:12165.No.1501,2001.3,16,.400MPa.,200111,,2993067,,.CSP.,200111,,2912948...19978,9..,2000,11:667010[+.NKK,No.145,1994,333711.,No.1553,2001.9.4,612M.Takita,H.Ohashi,LaRevueMetallurgie-CIT,October,2001:899908():2003082320031030,12003101:CN,Cu,,,,NSSC304TS,2004100tCN1/4,0.025%,3%CuMn,,,,2Lm,,,——摘自《世界金属导报》 7