Influence of friction stir keyholeless spot welding process parameters on the diffusion degree of AZ31B Mg-steel

doi:10.12073/j.hjxb.2018390191

	Influence of friction stir keyholeless spot welding process parameters on the diffusion degree of AZ31B Mg-steel
	Wang, Xijing; Che, Wenbin; Liu, Xiao; Zhang, Liangliang
	2018-08-25
发表期刊	Hanjie Xuebao/Transactions of the China Welding Institution
ISSN	0253360X
卷号	39 期号:8 页码:6-10
摘要	Friction stir keyholeless spot welding (FSKSW) is an efficient manufacturing method for joining dissimilar alloys, which can dramatically offer high mechanical joint strength. Lap joints between AZ31B Mg and galvanized steel DP600 were made by FSKSW, in which the orthogonal tests were used to determine main influencing factors and the optimal scheme. Under the optimal process, the tensile load of the joint reaches 10.1 kN. Based on the analysis of the macro-micro morphology and the distribution of the interface elements, the effects of different process parameters on the diffusion degree of the elements were discussed. The results show that: (1) there is mechanical interlocking structure of hook shape in the stirring area, forming solid mechanical connection; (2) in the diffusion region, there is element diffusion occurring in the interface of Mg-steel with the diffusion layer thickness being 8 μm; (3) in a certain range, increasing the rotation speed of the tool, the vertical descent of the shoulder and the extended length of the pin can promote the elements diffusion in the interface and improve the connection performance. © 2018, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
关键词	Diffusion Friction Galvanizing Magnesium alloys Spot welding Element diffusion Friction stir spot welding Galvanized steels Mechanical connections Mg alloy
DOI	10.12073/j.hjxb.2018390191
收录类别	EI
语种	中文
出版者	Harbin Research Institute of Welding
EI入藏号	20184906173500
EI主题词	Friction stir welding
EI分类号	538.2.1 Welding Processes - 539.3 Metal Plating - 542.2 Magnesium and Alloys
来源库	Compendex
分类代码	538.2.1 Welding Processes - 539.3 Metal Plating - 542.2 Magnesium and Alloys
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114155
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院马克思主义学院
作者单位	State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	省部共建有色金属先进加工与再利用国家重点实验室
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Wang, Xijing,Che, Wenbin,Liu, Xiao,et al. Influence of friction stir keyholeless spot welding process parameters on the diffusion degree of AZ31B Mg-steel[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2018,39(8):6-10.
APA	Wang, Xijing,Che, Wenbin,Liu, Xiao,&Zhang, Liangliang.(2018).Influence of friction stir keyholeless spot welding process parameters on the diffusion degree of AZ31B Mg-steel.Hanjie Xuebao/Transactions of the China Welding Institution,39(8),6-10.
MLA	Wang, Xijing,et al."Influence of friction stir keyholeless spot welding process parameters on the diffusion degree of AZ31B Mg-steel".Hanjie Xuebao/Transactions of the China Welding Institution 39.8(2018):6-10.