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About this Symposium
Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Powder Metallurgy and Processing for Refractory and Refractory High Entropy Alloy Powders for Additive Manufacturing
Sponsorship
Organizer(s) Tim Horn, North Carolina State University
Ian Mccue, Northwestern University
Emma M. White, DECHEMA Forschungsinstitut
Matthew G. Osborne, Global Advanced Metals
Scope The demand for refractory metals and high-entropy alloys (HEAs) in extreme environments has driven advancements in powder processing techniques tailored for additive manufacturing (AM) and sinter-based consolidation. While prior symposia have explored the fundamental properties and synthesis of refractory metal powders, this symposium will focus on the evolving strategies that enable scalable production, printability, and densification of refractory metal and HEA powders for structural applications.
Achieving high-quality AM and sintered components requires a precise understanding of powder characteristics and their influence on processing behavior. This symposium will highlight innovations in powder atomization, spheroidization, and surface treatments that enhance flowability, reduce oxygen contamination, and improve sintering kinetics. Topics will include alloy design tailored for AM and sintering, microstructure evolution under different thermal histories, and strategies to mitigate defects such as cracking and residual porosity. Contributions that bridge powder feedstock engineering with processing-performance relationships will be a central theme.
Unlike broader discussions on refractory metals, this symposium will emphasize the challenges specific to AM and sinter-based fabrication, including powder reuse strategies, oxygen control, and processing parameter optimization. Presentations will focus on how powder properties dictate final part performance, providing insights into powder development, consolidation techniques, and post-processing methods that ensure the successful implementation of these materials in high-performance applications.
Topics include: Powder synthesis and feedstock modification for refractory metals and HEAs, Advanced atomization techniques for improved printability, Powder handling, storage, and reuse for AM applications, Sintering and densification pathways for refractory HEA consolidation, Powder-processing-property relationships in AM and sinter-based methods, Alloy design for improved printability and sinterability of refractory materials, Microstructure evolution and mechanical behavior in AM and sintered refractory alloys.
Abstracts Due 07/01/2025
Proceedings Plan Undecided
PRESENTATIONS APPROVED FOR THIS SYMPOSIUM INCLUDE
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