| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2025
|
| Presentation Title |
Get Low: Achieving Ultra-Fine Grain Sizes in Niobium with High-Pressure Torsion |
| Author(s) |
Lethicia Calderon, Miranda Bell, Ruben Ochoa, Adam Freund, Joshua Edwards, Nicholas Krienke, Suveen Mathaudhu |
| On-Site Speaker (Planned) |
Lethicia Calderon |
| Abstract Scope |
Niobium is a ductile refractory metal that has a high melting point and can retain its toughness at high temperatures. Other applications of niobium include low-temperature superconductors and RF cavities for advanced physics studies. Each of these applications requires different mechanical properties driven primarily by the grain size. In this study, we will explore the correlation between grain size and hardness in niobium processed with high-pressure torsion. Experiments will undergo high-pressure torsion to develop ultra-fine-grained microstructures. Our results will be compared with other findings from severe plastic deformation and conventional deformation processing to determine consistency with reported Hall-Patch coefficients. This finding will enable a better understanding of the grain size effects of refractory metals |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Mechanical Properties, |