| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
Multi-Principal Element Alloy Fillers to Mitigate Weldability and Joining Issues |
| Author(s) |
Zhenzhen Yu, Benjamin Schneiderman, Abdelrahman Abdelmotagaly |
| On-Site Speaker (Planned) |
Zhenzhen Yu |
| Abstract Scope |
Despite recent technological advances in manufacturing, a cross-cutting challenge remains in metallurgically joining of similar and dissimilar materials with poor weldability or incompatibility. Multi-principal element alloy (MPEA) fillers have demonstrated potential to meet these challenges, due to the stability of ductile solid-solution phases across a broad composition space. A rigorous down-selection strategy to identify MPEA compositions for particular applications has been developed, employing a suite of high-throughput computational techniques. A critical design consideration for the filler is tolerance to base material elements introduced during joining. In feasibility assessments, both initial MPEA filler compositions and prospective resultant compositions following joining must be evaluated. In this presentation, development of MPEAs as solutions for a variety of welding challenges will be discussed, such as liquid metal embrittlement in welding of Zn-coated automotive steels, high cracking susceptibility in repaired Ni-base superalloys, and joining of incompatible materials such titanium to stainless steel will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Joining, Mechanical Properties |