About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-90: Microstructural Evolution of Tungsten Under Thermal Shock Loading |
| Author(s) |
Syed Rizvi, Tyler Rhim, Houzhi Zhang, Tim Horn, Elizabeth Kautz |
| On-Site Speaker (Planned) |
Syed Rizvi |
| Abstract Scope |
Tungsten is an integral material for plasma facing components in fusion reactors and can experience extreme environments including high temperatures, intense heat fluxes, and transient heat pulses. These conditions strongly influence the microstructural evolution of tungsten, leading to recrystallization, surface roughening, localized melting, and erosion. In this study, edge localized mode (ELM) like thermal shock conditions were simulated to evaluate tungsten performance under transient heating with an electron beam. Tungsten samples were exposed to a range of energy densities and pulses, and the response was compared with as received material. Post exposure characterization was performed using scanning electron microscopy to assess surface morphology and damage features, energy dispersive X ray spectroscopy to evaluate elemental variations, and electron backscatter diffraction (EBSD) to quantify grain orientations and recrystallization behavior. Results provide insight into damage mechanisms and microstructural stability of tungsten when exposed to high heat fluxes. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Environmental Effects, High-Temperature Materials, Characterization |