Microstructure and properties of aluminum AA6061-T6 to copper (Cu)-T2 joints by cold metal transfer joining technology

doi:10.1557/jmr.2016.295

	Microstructure and properties of aluminum AA6061-T6 to copper (Cu)-T2 joints by cold metal transfer joining technology
	Cai, Z. P.1; Ai, B. Q.2; Cao, R.2; Lin, Q.2; Chen, J. H.2
刊名	JOURNAL OF MATERIALS RESEARCH
	2016-09
卷号	31 期号:18 页码:2876-2887
关键词	Binary alloys Brazing Copper Copper alloys Filler metals Intermetallics Joining Welding Welds Aluminum alloy AA6061 Brazing joints Cold metal transfers Fracture surfaces Joining technology Microstructure and properties Pure copper Stress condition
ISSN号	0884-2914
DOI	10.1557/jmr.2016.295
英文摘要	Recently, cold metal transfer (CMT) process has been successfully applied to weld dissimilar metals. In this paper, two different aluminum alloy AA6061-T6 and pure copper T2 lapped joints were performed by CMT with AA4043 aluminum alloy wire as the filler metal. Results indicated that sound lapped joints between aluminum alloy AA6061-T6 and pure copper T2 could be performed by CMT technology. The joint was composed of Al-Al welding joint and Al-Cu brazing joint. The Al-Al welding joint was formed between the Al weld metal and the Al base metal, and the weld metal in Al-Al welding joint was composed of alpha-Al solid solution, alpha-Al, and CuAl eutectic phase. Al-Cu brazing joint was formed between the Al weld metal and the local molten Cu base metal, and composed of three copper-weld metal interfaces with a large amount of intermetallic compounds (IMCs), i.e., CuAl2, CuAl. The optimum strength of two joints could reach up to 1.23 kN and 1.56 kN, respectively, which was mainly due to the differences of the size of Cu/Al IMCs and stress condition. In addition, the distribution of microhardness and fracture surface of two joints were observed and analyzed in detail.
资助项目	National Nature Science Foundation of China[51265028] ; Pre-research of National Basic Research Program of China[2014CB660810] ; Rose Willow Outstanding Individual Programs of Lanzhou University of Technology[J201203]
WOS研究方向	Materials Science
语种	英语
出版者	CAMBRIDGE UNIV PRESS
WOS记录号	WOS:000385675200015
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33617]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室学报编辑部
通讯作者	Cao, R.
作者单位	1.Tsinghua Univ, Dept Mech Engn, Collaborat Innovat Ctr Adv Nucl Energy Technol, State Key Lab Tribol, Beijing, Peoples R China 2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Cai, Z. P.,Ai, B. Q.,Cao, R.,et al. Microstructure and properties of aluminum AA6061-T6 to copper (Cu)-T2 joints by cold metal transfer joining technology[J]. JOURNAL OF MATERIALS RESEARCH,2016,31(18):2876-2887.
APA	Cai, Z. P.,Ai, B. Q.,Cao, R.,Lin, Q.,&Chen, J. H..(2016).Microstructure and properties of aluminum AA6061-T6 to copper (Cu)-T2 joints by cold metal transfer joining technology.JOURNAL OF MATERIALS RESEARCH,31(18),2876-2887.
MLA	Cai, Z. P.,et al."Microstructure and properties of aluminum AA6061-T6 to copper (Cu)-T2 joints by cold metal transfer joining technology".JOURNAL OF MATERIALS RESEARCH 31.18(2016):2876-2887.