Microstructure and mechanical properties of Al/Cu dissimilar metals welding-brazing joint

doi:10.12073/j.hjxb.2018390123

	Microstructure and mechanical properties of Al/Cu dissimilar metals welding-brazing joint
	Zhou, Xianglong; Shi, Yu; Zhu, Ming; Gu, Yufen
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2018-05-25
卷号	39 期号:5 页码:59-62
关键词	Aluminum Binary alloys Brazing Copper alloys Copper compounds Dissimilar metals Eutectics Filler metals Gas metal arc welding Gas welding Grain boundaries Heat affected zone Intermetallics Magnesium alloys Mechanical properties Metal testing Microstructure Seam welding Tensile stress Tensile testing Al-Cu eutectic DE-GMAW Double electrodes Interface layer Microstructure and mechanical properties Tensile loads Welding heat input Wetting and spreading
ISSN号	0253360X
DOI	10.12073/j.hjxb.2018390123
英文摘要	Dissimilar metals of 1060 aluminum and T2 copper were joined with lap joint by pulsed double electrode gas metal arc welding-brazing with ER5356 AlMg5 filler wire. Microstructure, elements composition and mechanical properties of joint were studied. The results showed that good-looking,continuous and uniform,defectless welds could be obtained with proper welding parameters.Welded joints transit from copper side with intermetallic compound (IMC) layer, Al-Cu eutectic to welding seam. The IMC layer is composed of Al2Cu phase, and the weld zone is composed of α(Al) solid solutions and α(Al)+S(Al2CuMg)/θ(Al2Cu) eutectic in the grain boundary. The thickness of IMC layers increases with the increase of welding heat input, while the tensile load of joint increases at first and then decreases, which is related to the wetting and spreading of the weld on the copper base material. Tensile test results show that the joint fractures at the heat affected zone of aluminum base metal or interface layer between the weld and the copper base metal. © 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/113795]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhou, Xianglong,Shi, Yu,Zhu, Ming,et al. Microstructure and mechanical properties of Al/Cu dissimilar metals welding-brazing joint[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2018,39(5):59-62.
APA	Zhou, Xianglong,Shi, Yu,Zhu, Ming,&Gu, Yufen.(2018).Microstructure and mechanical properties of Al/Cu dissimilar metals welding-brazing joint.Hanjie Xuebao/Transactions of the China Welding Institution,39(5),59-62.
MLA	Zhou, Xianglong,et al."Microstructure and mechanical properties of Al/Cu dissimilar metals welding-brazing joint".Hanjie Xuebao/Transactions of the China Welding Institution 39.5(2018):59-62.