Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints

doi:10.12073/j.hjxb.20190916002

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

	Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints
	Shi, Yu; Liang, Qi; Zhang, Gang; Li, Guang
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2020-05-25
卷号	41 期号:5 页码:25-29
关键词	Brazing Gas welding Intermetallics Morphology Scanning electron microscopy Tensile strength Wetting Intermetallic compound layer ITS applications Joint interfaces Joint performance Laser texturing Liquid aluminum Low power laser Wetting and spreading
ISSN号	0253360X
DOI	10.12073/j.hjxb.20190916002
英文摘要	Using the high-performance aluminum/steel welding parts is the goal of automotive lightweight. Aim at the problem that the brittle intermetallic compound layer at the joint interface of aluminum/steel leads to a poor joint performance and limits its application, a TIG brazing test of aluminum upper steel is designed. The steel is texturing with low-power laser. The morphology and distribution of intermetallic compounds are analyzed via scanning electron microscopy. The effects of texturing line spacing on wetting and spreading behavior, the distributing of intermetallic compound at interface and the joint mechanical are researched. Results as following: the wetting and spreading of liquid aluminum on steel is deteriorated after texturing. However, the morphology of steel from flag to jag groove increases the reaction contact area and mechanical occlusion. Meanwhile, the groove blocks the cracks growth so that the mechanical properties improved. The intermetallic compounds distribution changes from uniform continue along the interface to non-uniform inside the groove. Under the condition of the line spacing is 130 μm, the average tensile strength of the joint reaches 85.5 MPa. © 2020, 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/114981]
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
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metal, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Shi, Yu,Liang, Qi,Zhang, Gang,et al. Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2020,41(5):25-29.
APA	Shi, Yu,Liang, Qi,Zhang, Gang,&Li, Guang.(2020).Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints.Hanjie Xuebao/Transactions of the China Welding Institution,41(5),25-29.
MLA	Shi, Yu,et al."Effect of laser texturing on the interface and properties of aluminum/steel arc fusion brazed joints".Hanjie Xuebao/Transactions of the China Welding Institution 41.5(2020):25-29.