| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2025
|
| Presentation Title |
Preparation of Homogeneous W-Re Alloys by Coating Tungsten Powder With Perrhenic Acid |
| Author(s) |
Davis R. Conklin, Michael Zaza, Hailey Loehde-Woolard, Hermann F. Klein-Hessling Barrientos, Arne Croell, Jhonathan Rosales, Alan W. Weimer |
| On-Site Speaker (Planned) |
Davis R. Conklin |
| Abstract Scope |
Tungsten-rhenium (W-Re) solid solution alloys provide a unique combination of mechanical and thermal properties that are utilized in many high-temperature applications. A homogeneous rhenium concentration is crucial for mechanical performance, but this is difficult to achieve in near-net shape manufacturing without employing specialized powder preparation and consolidation techniques. In this presentation, we show that coating tungsten powder with a perrhenic acid solution substantially improves alloy homogeneity by reducing diffusion distances and promoting pre-alloying relative to metal powder mixtures. This strengthens the rhenium softening effect to produce superior W-Re alloys with conventional, commercially relevant powder metallurgy techniques. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Powder Materials, High-Temperature Materials |