汽车用钢板的现状和发展趋势

100713852006020029031231.1100342.1100043.110044TG142.1B111rn232006021219764522.160%～70%500MPaNbTiTRIP232.1.1-15%4αγα+γαγCα80%～90%20064232JournalofShenyangInstituteofAeronauticalEngineeringApr.2006Vol.23No.2-550～650MPa780MPa21%12.1.2TRIP800MPaTRIPTRIPTRIPC-Mn-Si10%10%TRIPσs340MPa～860MPaσb610MPa～1080MPaδ22%～37%52.22.2.1IFrnIF0.01%IFr111IFσs=100MPa～150MPaσs/σb≤0.5r=1.8～2.2n=0.23～0.28δ=44%～55%IFIFIF67IFIFTi-IFNb-IFTi+Nb-IFIFIF2.2.2BHBH40～80MPaBHBHr2.312.342.5～7.5µm1/41/23～52.40.05～0.12mm63023311992300MPa～460MPa260MPa2000980MPaIF1kg/19831984198519861987198819891990113116.2123.0128.9139.4153.5163.9174.8IFIF41.J.1996553-572.J.199566-133.J.200341-44.J.1997136-385..J.2000227-306..19951210-157.IFJ.199817-9PresentstatusanddevelopmenttrendofsteelforautomobileZHENGHui12LIGuo-feng31.SchoolofaerospaceShenyangInstituteofAeronauticalEngineeringLiaoningShenyang1100342.North-eastUniversityLiaoningshenyang1100043.ShenyangBrillianceJinbeiAutomobileCompanyLtd.LiaoningShenyang110044AbstractThedevelopmentofautomobilesheetsofmetallurgicalindustrywasacceleratedbythedevelopmentofautomobileindustryandthetechnologicalprogressofautomobileindustrywasalsopromotedbythethede-velopmentofmetallurgicalindustry.Inviewofthequalityrequirementsofsteelforautomobilethepapercom-mentsonthepresentstatusanddevelopmenttrendofsteelforautomobile.Hotrolledsteelcoldrolledsteelcoatedsteelandcompositevibrationdampersteelaremainsteelusedformodernautomobile.Withincreasingrequirementforweight-savingcorrosionresistanceandnoiseabatementthedevelopmenttrendofsteelforautomobileishighstrengthdeepdrawingperformancecoatedlayerandvibrationisolation.Keywordsautomobilesteeldeepdrawingcoatedlayer231