Bonding mechanism of friction stir spot welding of magnesium to galvanized steel

IR > 马克思主义学院

	Bonding mechanism of friction stir spot welding of magnesium to galvanized steel
	Liu, Xiao; Wang, Xijing; Jing, Wenxia; Chai, Tingxi
	2016-08-25
发表期刊	Hanjie Xuebao/Transactions of the China Welding Institution
ISSN	0253360X
卷号	37 期号:8 页码:17-20
摘要	The lap welding of AZ31B Mg alloy to DP600 galvanized steel were successfully achieved by friction stir spot welding (FSSW) and vacuum diffusion welding. Scanning electron microscopy, energy disperse spectroscopy and tensile tests were used to investigate the microstructures and mechanical properties of the welded joints at the best welding parameters. The results show that there is no keyhole found in the FSSW joint and the good weld appearance is obtained. The bonding mechanism of the joints are mechanical bonding and metallurgical bonding. Intermetallic compounds of Mg, Fe and O formed because of the diffusion at the interface of magnesium and steel during the metallurgical bonding process. In the mechanical bonding process, some of the steel insert into the magnesium alloy substrate like nails and there exists serrated combination morphology at the interface between Mg and steel, the others is mixed into the magnesium alloy under the stir effect of stir pin which greatly improved the mechanical properties of joint of magnesium alloy to steel. For both the kinds of bonding mechanism, about 75.9% of the mechanical properties is contributed by mechanical bonding and mechanical bonding is the main bonding mechanism in the FSSW process. © 2016, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
关键词	Friction Friction stir welding Galvanizing Mechanical properties Mechanisms Morphology Scanning electron microscopy Spot welding Steel metallurgy Tensile testing Vacuum welding Welds AZ31B magnesium alloys Bonding mechanism Friction stir spot welding Galvanized steels Metallurgical bonding Metallurgical bonding process Microstructures and mechanical properties Vacuum diffusion welding
收录类别	EI
语种	中文
出版者	Harbin Research Institute of Welding
EI入藏号	20163602773053
EI主题词	Magnesium alloys
EI分类号	531.1 Metallurgy - 538.2 Welding - 538.2.1 Welding Processes - 539.3 Metal Plating - 542.2 Magnesium and Alloys - 601.3 Mechanisms - 951 Materials Science
来源库	Compendex
分类代码	531.1 Metallurgy - 538.2 Welding - 538.2.1 Welding Processes - 539.3 Metal Plating - 542.2 Magnesium and Alloys - 601.3 Mechanisms - 951 Materials Science
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/112542
专题	马克思主义学院材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Materials, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Liu, Xiao,Wang, Xijing,Jing, Wenxia,et al. Bonding mechanism of friction stir spot welding of magnesium to galvanized steel[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2016,37(8):17-20.
APA	Liu, Xiao,Wang, Xijing,Jing, Wenxia,&Chai, Tingxi.(2016).Bonding mechanism of friction stir spot welding of magnesium to galvanized steel.Hanjie Xuebao/Transactions of the China Welding Institution,37(8),17-20.
MLA	Liu, Xiao,et al."Bonding mechanism of friction stir spot welding of magnesium to galvanized steel".Hanjie Xuebao/Transactions of the China Welding Institution 37.8(2016):17-20.