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Critical review on fusion welding of magnesium alloys: metallurgical challenges and opportunities
, Article Science and Technology of Welding and Joining ; Volume 26, Issue 8 , 2021 , Pages 559-580 ; 13621718 (ISSN) ; Sharif University of Technology
Taylor and Francis Ltd
2021
Abstract
As the lightest structural alloys, magnesium alloys offer significant potential for improving the energy efficiency of various transportation systems. The lack of sufficient weldability of Mg alloys is a crucial barrier to their potential use in safety-critical applications. Porosity formation, grain structure engineering, solidification cracking, liquation, and liquation cracking are the key metallurgical challenges to obtain reliable and robust fusion welds in Mg alloys. This critical review highlights the current understating regarding controlling the metallurgical phenomena during fusion welding of Mg alloys and discusses the unresolved metallurgical challenges to shed light on the path...