双相不锈钢异种金属的焊接工艺与接头组织性能分析

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1、南京航空航天大学硕士学位论文ABSTRACTDuetotllef-avorablemechallicalandcorrosiollproperties，iIuplexstainlesssteelspSS)are谢dely璐edina训et)，ofindlls缸yfieldssuch勰pe缸DleuIll'ch吼疵almd_ustl弘0ce锄∞giIlee血g勰asubs缸tIlteofthc∞缸埘ystailllesssteel．kpracticaLlapplicati∞，the鲥)wiI唱availabilityofs撕ng吐leduplexstainlesss

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6、andt∞hnolo百calguidaImf．0rweldiIlgDSSdissil：Ilil盯metalss乜mctIlreinpracdceapphcation．Theamlys懿oflIlicros衄lctllralcha忍cter础io璐，cb枷calcompositio璐蚴dph鹤eco璐6tIId∞of也ediSsinlilarjoiIl拯wereconductedbymea璐ofopdcalmicrosc叩y(oM)，sc糊iIlgelec仃IDnnlicroscopy(SEM)and缸ansnlissi0Ilelec乜mr11icroscopy呷M

7、)，togen埘砌lx-mydi竹ac60n(Ⅺ①)respec矗velyResultsshowmatill吐lel6MIlIi删(weldmetal)inter：face，adecarb证冼dla弦closet0nleflIsionlineat吐lesideof16MIiRisf0朋ed鹤aresllltof廿lemi廖撕∞ofcarbonel锄饥t，锄dⅡlereisasolidificationtransiti∞他西0nofa_bout20-50弘mat吐圮WMside．1k锄alysisofsolidific撕0n的璐itionlayer砌ca把snlat

8、me州al