Design guideline for intermetallic compound mitigation in Al-Mg dissimilar welding through addition of interlayer

被引:54
作者
Shah, L. H. [1 ,2 ]
Gerlich, A. [1 ]
Zhou, Y. [1 ]
机构
[1] Univ Waterloo, Ctr Adv Mat Joining, Dept Mech & Mechatron Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
[2] Univ Malaysia Pahang, Fac Mech Engn, Pekan, Pahang, Malaysia
关键词
Aluminum; Magnesium; Dissimilar welding; Intermetallic compound; Design guideline; MECHANICAL-PROPERTIES; MAGNESIUM ALLOY; MICROSTRUCTURE CHARACTERISTICS; INTERFACIAL MICROSTRUCTURE; THERMODYNAMIC ASSESSMENT; FORMATION ENTHALPY; TAILORED BLANKS; AZ31B MAGNESIUM; ALUMINUM-ALLOY; BUTT JOINTS;
D O I
10.1007/s00170-017-1038-y
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper critically assesses the recent trends in aluminum-magnesium dissimilar welding and suggests a key design guideline to successfully improve the weld joint quality through addition of interlayer. First, the paper describes the main issue of incompatibility between these metals and considers the root cause of the problem, i.e., the Al-Mg-based intermetallic compounds (IMCs). It then reviews the recent trends of interlayer addition in various welding processes to mitigate Al-Mg IMCs. Focusing on laser welding, the paper finally proposes a 3-step design guideline in Al-Mg dissimilar welding through addition of an interlayer and presents a case study of using pure Ni foil as a proof of concept. The design guideline has shown to be an effective means to predict and prevent the formation of deleterious intermetallics.
引用
收藏
页码:2667 / 2678
页数:12
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