About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
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Symposium
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High Entropy Materials: Concentrated Solid Solutions, Intermetallics, Ceramics, Functional Materials and Beyond V
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Presentation Title |
Development of Intermetallic-Free Welding between Aluminum and Steel Using High Entropy Alloy Interlayers in Resistance Spot Welding |
Author(s) |
Jianxun Hu, Peiyong Chen, Xuesong Fan, John Bohling, Peter Liaw |
On-Site Speaker (Planned) |
Jianxun Hu |
Abstract Scope |
Development of intermetallics – free weld between steel and aluminum alloys using conventional resistance spot welding method is highly interesting in automotive industry. Multi- principal element alloys (MPEAs) hold the capability to forming solid solution in a system with 5 or more elements. Therefore, High Entropy Alloys (HEAs) have been developed containing Fe and Al and applied as interlayers in joining steel and aluminum sheets during resistance spot welding. It was found that the HEAs containing Fe, Cu, Mn, Ni, and Al form a single-phase solid solution in a wide range of aluminum composition. The microstructure of the welding nuggets showed that there was no intermetallics existing at the interface between steel and aluminum, and the satisfactory mechanical strength of the welds were also attained. |