| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Enhanced Development of Tungsten Alloy Plasma Facing Materials |
| Author(s) |
Hyeji Im, Jason Trelewicz, Ian McCue |
| On-Site Speaker (Planned) |
Hyeji Im |
| Abstract Scope |
Tungsten-based alloys possess the potential to significantly enhance the efficiency of a fusion system, surpassing the capabilities of conventional materials. Laser-powder bed fusion (L-PBF) can help overcome the challenges associated with poor machinability of these high-strength alloys and difficulties in casting for complex-shaped components. However, cracking during additive fabrication is a continuing issue for further development of the alloys. In this study, we explore additive manufacturing as a viable processing route to tailor into fine-grained structures in tungsten alloys while mitigating the cracking issues. To identify suitable alloying elements, we assessed hot cracking susceptibility and phase stability of the candidate alloys. By incorporating titanium and iron as alloying elements, we successfully fabricated fully dense tungsten-based alloys. The utilization of titanium and iron enhances material performance, making it feasible to produce intricate parts in the field of plasma fusion. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, |