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

doi:10.12073/j.hjxb.2018390191

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	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
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2018-08-25
卷号	39 期号:8 页码:6-10
关键词	Diffusion Friction Galvanizing Magnesium alloys Spot welding Element diffusion Friction stir spot welding Galvanized steels Mechanical connections Mg alloy
ISSN号	0253360X
DOI	10.12073/j.hjxb.2018390191
英文摘要	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.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://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
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.