About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPU-39: Deformation Behavior and Mechanical Performance of High Temperature Electron Beam Melted Tungsten |
| Author(s) |
Riley Mayes |
| On-Site Speaker (Planned) |
Riley Mayes |
| Abstract Scope |
Additive manufacturing (AM) has emerged as a promising approach for fabricating plasma-facing components in fusion reactors due to its ability to produce complex thermal transport geometries. Pure tungsten is well suited for this application because of its high strength and thermal resistance, and electron beam melting (EBM) is particularly effective for processing tungsten. EBM employs powder-bed preheating prior to each melt layer, which reduces thermal gradients and mitigates stress-induced cracking. However, the unique microstructure produced by EBM and its impact on material performance relative to other fusion-based manufacturing methods remain largely unexplored. This work investigates the mechanical response of EBM-fabricated tungsten at elevated temperatures representative of fusion-relevant environments. Microstructural analysis revealed significant lattice rotation, dynamic recrystallization, and the formation of deformation kink bands. Experimental results were compared with crystal plasticity finite element simulations, providing guidance for the design of tungsten components capable of withstanding extreme fusion energy conditions. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Nuclear Materials, Additive Manufacturing, High-Temperature Materials |