About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Advancing the Frontier of Powder Materials Processing and Sintering: A MPMD/EPD Symposium in Honor of Eugene Olevsky
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| Presentation Title |
Processing of Blended Elemental Powder for Scalable Production of Novel Refractory High Entropy Alloys |
| Author(s) |
Michael Taylor Hurst, Brady Butler, Raymundo Arroyave, Jyhwen Wang, Braden Howerton, Audrey Gold, Braden Miller, Ford Schuster, Trevor Hastings |
| On-Site Speaker (Planned) |
Michael Taylor Hurst |
| Abstract Scope |
Refractory high entropy alloys (RHEAs) are promising for extreme environments, but powder production and scale-up challenges hinder manufacturability. As part of efforts to develop scalable, cost-effective sintering strategies, this work explores a combined hydride-dehydride (HDH) and blended elemental powder (BEP) approach for RHEAs. Pre-alloyed RHEAs were hydrogenated, pulverized, and dehydrogenated to produce sinterable powders used to benchmark densification and microstructure. Parallel studies with BEP mixtures, including hydride forms of elemental powders, enabled in-situ alloying during sintering. Press-and-sinter processing was employed to assess densification, chemical homogeneity, and mechanical properties across all routes. Results show that HDH and BEP-HDH methods offer low-cost, adaptable pathways to complex RHEA chemistries. Reducing reliance on expensive traditional alloy synthesis routes and enabling the use of commercially available materials. This study establishes foundational powder metallurgy strategies for scalable feedstock production and supports future integration with additive manufacturing, advancing RHEAs from material discovery toward practical deployment. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Powder Materials |