About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2026 – A Memorial to Todd Leonhardt
|
| Presentation Title |
Optimizing Reinforcement and Alloying Strategies in WMoVTi RHEAs for High-Temperature Applications |
| Author(s) |
Chun-Liang Chen |
| On-Site Speaker (Planned) |
Chun-Liang Chen |
| Abstract Scope |
This study examines the effects of alloying parameters and reinforcement strategies on the microstructure and mechanical properties of WMoVTi-based alloys synthesized via mechanical alloying (MA). Key variables include the V/Ti and W/Mo ratios, the addition of CoCrFeNi as a reinforcement phase, and the incorporation of Y₂O₃ oxide dispersoids. CoCrFeNi enhances phase diversity and improves ductility, while Y₂O₃ serves as a thermally stable dispersoid, promoting grain refinement and suppressing grain growth during sintering. Varying the W/Mo ratio influences solid-solution behavior and phase stability, contributing to improved strength and high-temperature performance. Results show that increasing the V/Ti ratio, combined with optimized reinforcement and dispersoid content, leads to refined microstructures and superior mechanical properties. Enhanced densification and thermal stability were achieved under optimized sintering conditions. These findings demonstrate a viable approach to designing advanced refractory alloys with improved structural integrity for demanding applications, such as nuclear reactors and high-temperature environments. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Mechanical Properties |