|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||Development of Multi-Principal-Element Alloys and the Applications in Dissimilar Metals Welding
||Jianxun Hu, Peiyong Chen, Xuesong Fan, John Bohling, Chanho Lee, Peter Liaw, Carl Lundin, A. M. M. Abdelmotagaly, Zhenzhen Yu
|On-Site Speaker (Planned)
Dissimilar metals joining has become increasingly important in developing multi-material vehicle body structure to achieve lightweight strategy. However, welding of dissimilar metals, i.e. aluminum and steel sheet metals in automotive industry, has been challenge due to the inherent discrepancies in the metallurgical and physical properties between the two metals. The formation of the intermetallic compounds prohibits attaining the satisfactory welds and promotes the corrosion. High entropy alloys (HEAs) have been developed and applied in reducing and even eliminating the formation of the intermetallics between the dissimilar metals when using resistance spot welding (RSW) and arc welding methods. High-entropy alloys (HEAs), with 5 or more principal elements in equiatomic ratio, were first found to successfully prohibit the formation of intermetallics between the aluminum and steel, and provide satisfactory welding strength. The microstructure and tensile property of the weld were investigated with the different thickness and composition of the HEAs.
||High-Entropy Alloys, Joining, Other