钛/钢激光焊接头中脆性化合物调控研究进展  

Research progress on the regulation of brittle compounds in titanium alloy/steel dissimilar metal joint by laser welding

作　　者：张义福[1,2] 张华[1] 苏展展 朱政强[1] 潘际銮[1] ZHANG Yifu;ZHANG Hua;SU Zhanzhan;ZHU Zhengqiang;PAN Jiluan(Key Laboratory for Robot&Welding Automation of Jiangxi Province,School of Mechanical&Electrical Engineering,Nanchang University,Nanchang 330031,China;School of Mechanics&Materials Engineering,Jiujiang University,Jiujiang 332005,China)

机构地区：[1]江西省机器人与焊接自动化重点实验室南昌大学机电工程学院,江西南昌330031 [2]九江学院机械与材料工程学院,江西九江332005

出　　处：《兵器材料科学与工程》2019年第6期116-123,共8页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(U1731118);江西省轻质高强结构材料重点实验室开放基金（20171BCD40003）

摘　　要：钛合金/钢异种金属焊接结构在现代工业应用中日益广泛,但因母材理化性能差异,导致焊接难度大。综述了激光深熔焊在钛合金/钢异种金属焊接中的优势及国内外研究进展;分析焊接时出现的关键问题,并就界面金属间化合物(IMCs)调控方法进行系统讨论;介绍了多物理场耦合相场法在焊接模拟中的问题及研究状况;简述耦合流场的相场法显微组织模拟存在的问题,并对问题进行展望。Titanium alloy/steel dissimilar metals welding structures have become more and more widely used in modern industrial applications.However,welding is difficult due to the significant differences in physical and chemical properties of the base metal.This paper introduced the advantages of laser penetration welding in titanium alloy/steel dissimilar metal welding and the research progress in domestic and at abroad,analyzed the key problems in welding,and systematically discussed the control methods of the interfacial intermetallic compounds(IMCs).The problems and research status of multi-physics coupled phase field method in welding simulation were introduced.The problems of phase field method microstructure simulation of coupled flow field were summarized.And the future of above mentioned issues was looked beyond.

关 键 词：钛合金/不锈钢异种金属 激光深熔焊 金属间化合物(IMCs) 相场法 

分 类 号：TG456.7[金属学及工艺—焊接]