铝与镁异种轻合金摩擦搅拌焊的研究现状  

Research on friction stir welding of dissimilar light alloys between aluminum and magnesium

作　　者：罗畅[1,2] 戚文军[1] 李亚江[2] 周楠[1] 宋东福[1] 王娟[2] 

机构地区：[1]广东工业技术研究院(广州有色金属研究院),广东广州510650 [2]山东大学材料科学与工程学院,山东济南250000

出　　处：《轻合金加工技术》2015年第10期9-15,共7页Light Alloy Fabrication Technology

基　　金：广州市对外科技合作专项2013J4500066;广东省金属复合材料工程技术研究中心;广东省铝镁轻金属材料产学研结合科技创新平台(2012B090600051)

摘　　要：铝合金与镁合金异种接头焊接难度大,接头质量差,摩擦搅拌焊技术成为铝合金与镁合金异种接头焊接的新方向。对近些年来铝合金与镁合金异种接头摩擦搅拌焊的研究现状进行了综述,概括了焊缝成形、接头显微组织、焊接温度测量与控制及接头力学性能等方面的问题。得出了金属间化合物的形成严重影响焊接质量的结论,并提出了改善该问题的方法以及未来的发展方向。Welding of dissimilar joints between aluminum and magnesium alloys is difficult with poor quality of joints,and friction stir welding becomes a new method to solve the problem. The research status of friction stir welding of dissimilar joints between aluminum and magnesium alloys over the past few years is reviewed in this paper,including the issues of formation of weld beads,microstructure of joints,measurement and control of welding temperature and properties of joints,etc. It can be concluded that the formation of intermetallic compounds severely affects the welding quality. The improvement approaches and development trends are proposed as well.

关 键 词：铝合金 镁合金 摩擦搅拌焊 接头性能 

分 类 号：TG453.9[金属学及工艺—焊接]