Characteristics of TIG arc-assisted laser welding–brazing joint of aluminum to galvanized steel with preset filler powder

doi:10.1007/s12598-015-0539-9

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	Characteristics of TIG arc-assisted laser welding–brazing joint of aluminum to galvanized steel with preset filler powder
	Li, Chun-Ling; Fan, Ding; Wang, Bin
刊名	Rare Metals
	2015-09-19
卷号	34 期号:9 页码:650-656
关键词	Aluminum compounds Binary alloys Brazing Electric welding Fillers Galvanized metal Galvanizing Inert gases Intermetallics Iron alloys Laser beam welding Liquid metals Mechanical properties Phase interfaces Powder metals Steel Tensile strength 5a06 aluminum alloys Filler powders Galvanized steels Interface reactions Interfacial layer Steel substrate Tungsten inert gas Welding current
ISSN号	10010521
DOI	10.1007/s12598-015-0539-9
英文摘要	Tungsten inert gas (TIG) arc-assisted laser welding–brazing was used for the butt joining of 5A06 aluminum alloy to the galvanized steel by preset filler powder without groove. The spreading behavior of liquid metal on the back of the galvanized steel at different assisted welding currents was also investigated. The results show that the assisted TIG arc optimizes the interface reaction temperature, enhances the wettability of liquid metal on the steel side, and forms a sound butt joint at an appropriate welding current. A non-uniform intermetallic compound is formed at the interfacial layer, which is composed of Fe2Al5 close to the steel substrate and Fe4Al13 close to the solidified aluminum. The superior tensile strength of joint is indicated when the welding current ranges from 13 to 16 A. The average tensile strength can reach 151 MPa at the welding current of 16 A, and the corresponding fracture belongs to the ductile and brittle hybrid mode. © 2015, The Nonferrous Metals Society of China and Springer-Verlag Berlin Heidelberg.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	University of Science and Technology Beijing
WOS记录号	WOS:000359949500006
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112822]
专题	机电工程学院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	Li, Chun-Ling,Fan, Ding,Wang, Bin. Characteristics of TIG arc-assisted laser welding–brazing joint of aluminum to galvanized steel with preset filler powder[J]. Rare Metals,2015,34(9):650-656.
APA	Li, Chun-Ling,Fan, Ding,&Wang, Bin.(2015).Characteristics of TIG arc-assisted laser welding–brazing joint of aluminum to galvanized steel with preset filler powder.Rare Metals,34(9),650-656.
MLA	Li, Chun-Ling,et al."Characteristics of TIG arc-assisted laser welding–brazing joint of aluminum to galvanized steel with preset filler powder".Rare Metals 34.9(2015):650-656.