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

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...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2018-02, Vol.94 (5-8), p.2667-2678
Main Authors: Shah, L. H., Gerlich, A., Zhou, Y.
Format: Article
Language:English
Subjects:
Aluminum
CAE) and Design
Computer-Aided Engineering (CAD
Dissimilar material joining
Engineering
Foils
Head Start project
Incompatibility
Industrial and Production Engineering
Interlayers
Intermetallic compounds
Laser beam welding
Magnesium
Mechanical Engineering
Media Management
Metal foils
Original Article
Trends
Welded joints
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Summary: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.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-017-1038-y