About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2026 – A Memorial to Todd Leonhardt
|
| Presentation Title |
The Effect of Re and Ru on High Temperature Deformation of Nb-Si-Based Alloys |
| Author(s) |
Sae Matsunaga, Yosuke Takayanagi, Yoko Yamabe-Mitarai |
| On-Site Speaker (Planned) |
Sae Matsunaga |
| Abstract Scope |
Nb-Si-based alloys are emerging as promising candidates to replace advanced Ni-based superalloys due to their excellent phase stability at high temperatures, lower density, and superior high-temperature mechanical properties. Our previous study revealed that the moderate to high volume fraction of the α-Nb₅Si₃ phase significantly enhanced the high temperature strengths. In this study, we further explored the effect of elements that could improve the high-temperature mechanical performance of Nb-Si-based alloys. We introduced Re and Ru into the Nb-Si binary and Nb-Si-Zr system to further strengthen the solid solution Nb matrix. In this presentation, we will share our recent findings on the composition-structure-property relationship of explored systems. We will present new insights into how Re, Ru, and Zr affect the microstructure, phase stability, high-temperature strength, creep resistance, and underlying deformation mechanisms. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Temperature Materials, Mechanical Properties, |