Investigation of wire selection for CMT plug joining Mg AZ31-to-galvanized steel

doi:10.1016/j.jmapro.2018.01.022

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

	Investigation of wire selection for CMT plug joining Mg AZ31-to-galvanized steel
	Cao, R.1; Chang, J. H.1; Zhu, H. X.1; Mao, G. J.1; Xu, Q. W.1; Shi, Y.1; Chen, J. H.1; Wang, Pei-Chung 2
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2018-04
卷号	32 页码:65-76
关键词	Galvanized steel Magnesium alloy Joining mechanism
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2018.01.022
英文摘要	In this study, the effect of wire selection (i.e., nickel, steel, copper and magnesium wires) on the feasibility of cold metal transfer plug welding of 3 mm thick Mg AZ31-to-1 mm thick galvanized mild steel was investigated. Welding tests with the use of various wires were conducted and the welded galvanized steel Mg AZ31 joints were mechanically tested and analyzed with SEM, EDS, and micro-hardness analyses. The results indicated that among all wires tested in this study, sound Mg AZ31-galvanized steel joints with Mg AZ61 wire were obtained. Mg-Zn eutectic and thin Fe-Al intermetallic at the brazed interface between the weld metal and galvanized steel base metal were observed. A thin fusion zone between Mg AZ31 weld metal and base metal was formed, which led to the weld metal Mg AZ31 pulled out fracture mode. To summarize the tests conducted in this study, although good quasi-static tensile strengths were obtained for galvanized steel-Mg AZ31 joints made with NRNiCu-7 (Ni-based) wire, local cracks for galvanized steel-Mg AZ31 joints were often induced in the weld metals, which potentially would cause a concern in fatigue performance of the joints. Based on these results, it is recommended to use Mg AZ61 wire to join galvanized steel and Mg AZ31 by cold metal transfer plug welding. (C) 2018 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
资助项目	Foundation of Collaborative Innovation Teams in College of Gansu Province[2017C-07]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000435057100007
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32713]
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
通讯作者	Cao, R.
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Langongping 287 Rd, Qilihe Dist 730050, Peoples R China 2.Gen Motors Global Res & Dev Ctr, Mfg Syst Res Lab, Warren, MI USA
推荐引用方式 GB/T 7714	Cao, R.,Chang, J. H.,Zhu, H. X.,et al. Investigation of wire selection for CMT plug joining Mg AZ31-to-galvanized steel[J]. JOURNAL OF MANUFACTURING PROCESSES,2018,32:65-76.
APA	Cao, R..,Chang, J. H..,Zhu, H. X..,Mao, G. J..,Xu, Q. W..,...&Wang, Pei-Chung.(2018).Investigation of wire selection for CMT plug joining Mg AZ31-to-galvanized steel.JOURNAL OF MANUFACTURING PROCESSES,32,65-76.
MLA	Cao, R.,et al."Investigation of wire selection for CMT plug joining Mg AZ31-to-galvanized steel".JOURNAL OF MANUFACTURING PROCESSES 32(2018):65-76.