Microstructure and mechanical properties of aluminum/ AlSiNi/steel joint by induction brazing

被引：0
|
作者：
Xue H. [1 ]
Long W. [1 ]
Jiu Y. [1 ]
Cheng Z. [1 ]
Huang G. [2 ]
Zhang F. [3 ]
机构：
[1] State Key Laboratory in Advanced Brazing Filler Metals and Technologies, Zhengzhou Research Institute of Mechanical Engineering Co., Ltd., Zhengzhou
[2] Huaqiao University, Xiamen
[3] Guangdong University of Technology, Guangzhou
来源：
Hanjie Xuebao/Transactions of the China Welding Institution | 2020年 / 41卷 / 03期
关键词：
Al-based filler metal; Aluminum and steel brazing; Composition and morphology; Intermetallic compound; Mechanical property;
D O I：
10.12073/j.hjxb.20190128001
中图分类号：
学科分类号：
摘要：
The brazing performance of brazing filler metals AlSi12 and AlSiNi was analyzed by means of wetting test and thermal analysis. The microstructure, fracture morphology, phase composition and mechanical property of aluminum/steel joints brazed by AlSi12 and AlSiNi were analyzed by means of SEM, EDS and tensile strength test. The results showed that the wettability of AlSiNi filler metal is better than that of AlSi12, but the melting regions slightly enlarged. The thickness of the intermetallic compound layer in the AlSiNi brazing joint is 8. 1 μm, which is thinner and more uniformly distributed than that in the AlSi12 brazing joint. The Ni-containing intermetallic compounds in AlSiNi brazing joint have better plastic toughness and stronger bonding force with steel. As a result, aluminum/steel brazing joint with AlSiNi has higher tensile strength than that with the AlSi12 joint. © 2020, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
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页码：45 / 49
页数：4
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