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Materials 2014, 7(5), 3735-3757; doi:10.3390/ma7053735
Review

A Review of Dissimilar Welding Techniques for Magnesium Alloys to Aluminum Alloys

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Received: 24 March 2014; in revised form: 25 April 2014 / Accepted: 25 April 2014 / Published: 8 May 2014
(This article belongs to the Special Issue Light Alloys and Their Applications)
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Abstract: Welding of dissimilar magnesium alloys and aluminum alloys is an important issue because of their increasing applications in industries. In this document, the research and progress of a variety of welding techniques for joining dissimilar Mg alloys and Al alloys are reviewed from different perspectives. Welding of dissimilar Mg and Al is challenging due to the formation of brittle intermetallic compound (IMC) such as Mg17Al12 and Mg2Al3. In order to increase the joint strength, three main research approaches were used to eliminate or reduce the Mg-Al intermetallic reaction layer. First, solid state welding techniques which have a low welding temperature were used to reduce the IMCs. Second, IMC variety and distribution were controlled to avoid the degradation of the joining strength in fusion welding. Third, techniques which have relatively controllable reaction time and energy were used to eliminate the IMCs. Some important processing parameters and their effects on weld quality are discussed, and the microstructure and metallurgical reaction are described. Mechanical properties of welds such as hardness, tensile, shear and fatigue strength are discussed. The aim of the report is to review the recent progress in the welding of dissimilar Mg and Al to provide a basis for follow-up research.
Keywords: review; aluminum alloys; magnesium alloys; welding; intermetallic compound; mechanical property review; aluminum alloys; magnesium alloys; welding; intermetallic compound; mechanical property
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Liu, L.; Ren, D.; Liu, F. A Review of Dissimilar Welding Techniques for Magnesium Alloys to Aluminum Alloys. Materials 2014, 7, 3735-3757.

AMA Style

Liu L, Ren D, Liu F. A Review of Dissimilar Welding Techniques for Magnesium Alloys to Aluminum Alloys. Materials. 2014; 7(5):3735-3757.

Chicago/Turabian Style

Liu, Liming; Ren, Daxin; Liu, Fei. 2014. "A Review of Dissimilar Welding Techniques for Magnesium Alloys to Aluminum Alloys." Materials 7, no. 5: 3735-3757.


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