Effects of joining parameters and tool geometry on properties of friction stir welding joint of 2024 aluminum alloy and AZ31 magnesium alloy

被引：0
|
作者：
Song B. [1 ]
Zuo D. [1 ]
机构：
[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Cailiao Daobao/Materials Review | 2016年 / 30卷 / 10期
关键词：
2024 aluminum alloy; AZ31 magnesium alloy; Friction stir joining; Hardness distributions; Mechanical property; Microstructure;
D O I：
10.11896/j.issn.1005-023X.2016.20.028
中图分类号：
学科分类号：
摘要：
Defect-free butt joints of 2024 Al alloy to AZ31 Mg alloy plates with 3 mm thickness were performed using friction stir joining (FSJ). The joining was carried out at five different parameters and using two kinds of geometric shape tools. Effects of joining parameter on microstructures, tensile strength and hardness distributions of the joints were investigated. The dissimilar joint presents an even microhardness distribution and obvious material boundary with a rotation speed of 500 r/min and joining speed of 500 mm/min and using a tool with 15 mm diameter shoulder, existence of mechanical lock and no intermetallic compounds was found. At rotation speed of 300 r/min and jointing speed of 30 mm/min, the fracture position is located at the boundary of materials mixed area and TMAZ on Al alloy side, the joint presents approximate tensile strength compared to the former due to dissimilar materials mixing although massive intermetallic compounds exist. © 2016, Materials Review Magazine. All right reserved.
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页码：134 / 138
页数：4
相关论文
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