About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPU-11: Long-Term Kinetics of WTa and WV Alloys |
| Author(s) |
Brianna Elle Sebastian-Olazabal, Jacob Jeffries, Enrique Martinez-Saez |
| On-Site Speaker (Planned) |
Brianna Elle Sebastian-Olazabal |
| Abstract Scope |
Nuclear fusion has the potential to fuel society’s increasing energy demand as an alternative clean energy technology. However, fundamental challenges, such as sustaining plasma and finding suitable materials for a sustainable design, must be solved before the commercialization of nuclear fusion can be achieved. Specifically, the divertor in reactors face extreme conditions of irradiation and high temperatures, which can cause embrittlement, formation of radioactive isotopes, and overall material degradation. To overcome current material limitations, our group analyzes tungsten-based complex concentrated alloy systems as a function of composition. By utilizing Density Functional Theory to fit a Cluster Expansion model, we run Kinetic Monte Carlo simulations to understand the diffusivity of point defects. This work focuses on tungsten-tantalum (WTa) and tungsten-vanadium (WV) systems with vacancy defects at temperatures of 700, 900, 1100, and 1300 K. Future works include TaV and WTaV systems, as well as the addition of chromium. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Computational Materials Science & Engineering, Nuclear Materials, Modeling and Simulation |