|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||High Entropy Alloys VI
||Investigation of High Entropy Alloys (HEAs) and the Application in Dissimilar Metals Welding
||Jim Hu, Eric Walker, Peiyong Chen, Chanho Lee, Douglas Fielden, Peter K Liaw
|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 unsuccessful due to the inherent discrepancies in the metallurgical and physical properties between the two metals. The formation of the intermetallics 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. The HEAs system of AlxCoCrFeNi (x=0.1, 0.3) has been studied to reveal that the formation of the solid solution instead of intermetallics in the weld nugget was observed. The microstructure and tensile property of the weld were investigated with the different thickness and composition of the HEAs.
||Planned: Supplemental Proceedings volume