镁/铝异种金属焊接的研究现状与展望  

Research Status and Prospect of Magnesium/Aluminum Dissimilar Metal Welding

作　　者：刘英宗 李远星[1] 郑向博 姚淑一 白玉杰 朱宗涛[1] 陈辉[1] Liu Yingzong;Li Yuanxing;Zheng Xiangbo;Yao Shuyi;Bai Yujie;Zhu Zongtao;Chen Hui(School of Materials Science and Engineering,Key Laboratory of Advanced Technologies of Materials,Ministry of Education,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学材料先进技术教育部重点实验室、材料科学与工程学院,四川成都610031

出　　处：《稀有金属材料与工程》2022年第12期4757-4772,共16页Rare Metal Materials and Engineering

摘　　要：镁合金和铝合金(Mg合金和Al合金)都具有很多优良的特性,在现代工业中占有越来越重要的地位,实现Mg/Al异种金属的可靠焊接对于轻量化的发展具有重要意义。然而,在Mg/Al异种金属焊接过程中存在一些亟待解决的问题,例如Mg合金和Al合金易氧化、易形成气孔和连续分布的金属间化合物(IMCs)等严重影响接头性能。本文分析了Mg/Al异种金属的焊接性,回顾了Mg/Al异种金属焊接技术的研究进展,阐述了Mg-Al IMCs的改善和消除,并对Mg/Al异种金属焊接提出了展望。Magnesium alloy and aluminum alloy(Mg alloy and Al alloy) have excellent properties and play an increasingly important role in modern industry. It is of great significance to realize the reliable welding of Mg/Al dissimilar metals for the development of lightweight.However, there are some urgent problems to be solved in the welding of Mg/Al dissimilar metals, such as the easy oxidation of Mg alloy and Al alloy, the formation of pores and the continuous distribution of intermetallic compounds(IMCs), which significantly affect the joint performance. This paper analyzed the weldability of Mg/Al dissimilar metals, reviewed the research progress of Mg/Al dissimilar metal welding, expounded the improvement and elimination of Mg-Al IMCs, and put forward the prospect of Mg/Al dissimilar metal welding.

关 键 词：轻量化 Mg/Al异种金属焊接 接头性能 金属间化合物(IMCs) 

分 类 号：TG457[金属学及工艺—焊接]