About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Refractory Metals 2024
|
Presentation Title |
The Study of High Temperature Deformation of Model Nb-Si-based Alloys at Ultra-high Temperatures |
Author(s) |
Sae Matsunaga, Kiyoshi Komamura, Zheng Yang, Yosuke Takayanagi, Yoko Yamabe-Mitarai |
On-Site Speaker (Planned) |
Sae Matsunaga |
Abstract Scope |
Nb-based Refractory Metal Intermetallic Composites (RMICs) have gained attention as a potential replacement for advanced Ni-based superalloys due to their excellent phase stability at high temperatures, lower density, and superior high-temperature mechanical properties. Past studies revealed that Nb-based RMICs exhibited comparable high temperature creep resistance to advanced Ni-based superalloys, but the alloy performance did not yet meet the goals. Collecting experimentally-confirmed data on fundamental alloys will be necessary to accelerate the rapid discovery and development of new alloys integrated with computational power. We explored the Nb-Si-X base ternary systems and extended multicomponent systems. Our alloy design strategy and the recent results of microstructure characterization, phase identification, and high temperature mechanical tests will be presented. The relationship between microstructure, phase stability, high temperature mechanical properties, and high temperature oxidation resistance will be discussed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, High-Temperature Materials, Mechanical Properties |