Effect of different coatings on the weldability of Al to steel

doi:10.1088/1742-6596/1063/1/012072

	Effect of different coatings on the weldability of Al to steel
	Sun, Junhao 2; Li, Zhuguo 2; Huang, Jian 2; Cao, Rui 1
	2018-08-06
会议日期	July 30, 2018 - August 3, 2018
会议地点	Tokyo, Japan
关键词	Aluminum alloys Aluminum compounds Binary alloys Brazing Filler metals Fillers Iron alloys Iron compounds Metal forming Metals Numerical models Sheet metal Weldability Welding Zinc alloys Zinc coatings Brazing joints Cold metal transfers Composition analysis Fe-Al intermetallic compounds Laser welding-brazing Steel substrate Weld appearances Welding method
卷号	1063
期号	1
DOI	10.1088/1742-6596/1063/1/012072
英文摘要	The influence of different coatings on the weldability of Al/steel was assessed in this study. Different kinds of the coatings, which included pure zinc coating, Fe-Zn coating and without coating, were considered. The thickness of the coating was also studied. Different configuration of overlap and butt joint was used, and different welding methods including cold metal transfer (CMT) welding-brazing and laser welding-brazing with filler metal were investigated. Samples were fabricated and the weld appearance, microstructure and composition analyses of the joints were examined. It was found that the Al to steel without coating could not be welded due to the formation of large amount of brittle Fe-Al intermetallic compounds (IMC). The coating helped suppress the formation of IMC and a welding-brazing joint was produced. However, pure Zn coating enhanced the wetting of molten filler onto the solid steel substrate, but Fe-Zn coating barely enhanced the molten filler to wet the steel substrate. The coating with a thickness of 10-20 μm contributed to a better performance of Al/steel joint. © 2018 Institute of Physics Publishing. All rights reserved.
会议录	Journal of Physics: Conference Series
会议录出版者	Institute of Physics Publishing
语种	英语
ISSN号	17426588
内容类型	会议论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/118095]
专题	材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, China 2.Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai, China;
推荐引用方式 GB/T 7714	Sun, Junhao,Li, Zhuguo,Huang, Jian,et al. Effect of different coatings on the weldability of Al to steel[C]. 见:. Tokyo, Japan. July 30, 2018 - August 3, 2018.