Stirring brazing of dissimilar Al/Mg alloy without flux in air

作     者：Hui-Bin Xu Hui-Bin Sun Hong-You Chen 

作者机构：School of Materials Science and Engineering Chongqing University of Technology Chen State Key Laboratory of Advanced Welding and Joining Harbin Institute of Technology 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2013年第32卷第5期

页      面：469-474页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

基　　金：supported by the Natural Science Foundation Project of Chongqing (No. cstc2011jjA50001) the State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology (No. AWPTM12-07) 

主　　题：2024 Al alloy AZ31B Mg alloy Stirring brazing 

摘      要：AZ31B magnesium alloy and 2024 aluminum alloy were successfully jointed at aid of mechanical stirring with Sn-Zn-Al filler metal. The microstructure, fracture morphologies, and mechanical properties of joint were investigated. The results show that Mg-Al intermetallic compounds can be avoided by the process. But, a small quantity of porosity is found in the joint. The sheafing strength of joint interface adjacent to magnesium alloy is 35.4 MPa for formation of Mg-Sn intermetallic compounds, which is about 46 % of that of filler metal. While, the shearing strength of joint interfaces adjacent to aluminum alloy is 70.4 MPa for formation of Zn-Sn-Al solid solution, which is about 92 % of that of filler metal.