奥氏体钢焊接区域的金相组织及扫描电镜分析

19994292JOURNALOFSHANDONGUNIVERSITYOFTECHNOLOGYVol.29No.2Apr.1999(250061)(SEM),,2,.;;/TG142.25;TG115.210,.22[13].,:Ni[4]..(SEMTEM)X22,.11828(1Cr18Ni9Ti),8mm.1.,,V,60.(SMAW).E0219210216,3.2mm,I=95105A,U=2528V,.,,10mm,,.X.:1998210225,,,1957.:.,,.©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1828)(%)CMnSiCrNiTib/MPas/MPa%%Akv/J01081156015518105910001355363144855280015mm.,50,30.=3mm,.75024h,,24,.22111828(1Cr18Ni9Ti),1a.()1828,.,,.,.,,2,,1b.,.a.b.1,200©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1500),.a.400b.150022(SEM,400,1500),2,3,:A:Cr19.40%;Fe72.08%;Ni8.52%.B:Cr21.95%;Fe71.04%;Ni7.01%.,Fe,CrNi.Creq/Nieq.213,M23C6.75024h,©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(A-,B-)24.,.,,.,.,,,,,.,M23C6,.M23C6TTT,M23C6.32,.,,,,.X.X(JCPDS),JCPDS.,.,,.,HAZ,,,HAZ.3(1)E0219210216,(),,.,.(2),,,.(3)2,CrNi.CrNi.©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2):37442DelongWT.Ferriteinausteniticstainlesssteelweldmetal.WeldingJournal,1974,53(7):2732863,..:,1988.3623644BrooksJA.Afundamentalstudyofthebenificaleffectofdeltaferriteinreducingweldcrack.WeldingJournal,1984,63(3):7183ANALYSISOFMICROSCOPICSTRUCTUREANDSCANNINGELECTRONMICROGRAPHOFAUSTENITESTEELWELDEDJOINTWeiXingLiuDezhen(Coll.ofMater.Sci.andEng.,ShandongUniv.ofTech.,Jinan250061)ABSTRACTByemployingexperimentmethodssuchasmicroscopictestandscanningelectronmicroscopictest,themicrostructuretransformofaustenitesteelweldedjointisanalyzed,andthecontentof2ferriteanditsdistributionformareemphaticallystudied.Thus,theexperimentbasiswasprovidedforsolvingtheproblemofheatcrackandcrystalboundarycorrosionofaustenitesteelweldedjointencounteredinweldingproduction.KEYWORDSAustenitestainlesssteels;Deltaferrite;Weldedstructure/Crystallineform©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.