About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Thermo-Mechanical Processing of Refractory Alloys
|
| Presentation Title |
Controlling Interstitial Impurities to Enable Conventional
Manufacturing of Refractory Multi-Principal-Element Alloys |
| Author(s) |
Luke Gaydos, Hailong Huang, Zongyang Lyu, Trevor Riedemann, Nicolas Argibay, Ryan Ott, Prashant Singh, Duane Johnson |
| On-Site Speaker (Planned) |
Luke Gaydos |
| Abstract Scope |
To enable first-generation fusion-energy reactors, new materials need to be developed to contain the plasma formed during fusion. Any plasma-facing material will see temperatures exceeding 1500oC, well beyond the melting points of current superalloys. While refractory metals, including refractory multi-principal-element alloys (RMPEA), can enable higher operating temperatures, they present several manufacturing challenges, most critically the effects of interstitial impurities (especially oxygen, carbon, and nitrogen) on ductility and manufacturability. As such, we address routes for managing and extracting these impurities from bulk material (e.g., castings) and powders, presenting data on W-rich MPEA candidates for a reactor first wall solution. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Process Technology |