About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
| Presentation Title |
Benchmarking Order-Based Properties in Multiprincipal Element Alloys from Single to Multiphase Systems |
| Author(s) |
Emily F. Holcombe, Elaf A. Anber, David Beaudry, Sebastian Lech, Brian DeCost, Howie Joress, Bruce Ravel, Jason Hattrick-Simpers, Deb Sur, Lauren Bowling, Michael J. Waters, Nathan Smith, Karl Sieradzki, Elizabeth J. Opila, John R. Scully, James M. Rondinelli, Christopher M. Wolverton, Mitra L. Taheri |
| On-Site Speaker (Planned) |
Mitra L. Taheri |
| Abstract Scope |
Multiprincipal element alloys (MPEAs) have been the subject of great interest in recent years for their unique behavior and promising properties, both of which have been attributed to the existence of short range order. To study the relationship between order and properties, single phase MPEAs have dominated the research landscape. In targeted applications, multiphase MPEAs will be utilized, highlighting the need to transfer the fundamental order-property relationships to multiphase systems. This talk reviews multiphase evolution in FCC and BCC based MPEAs. The eutectic structure yields the composite benefits of a ductile FCC phase and a strong BCC phase, as in duplex stainless steels. In refractory MPEAs, spinodally driven phase formation results in exceptional hardness with retained ductility. The role of specific elemental ordering on the mechanical stability, oxidation, and corrosion resistance of these systems, will be discussed. Ultimately, we outline a path toward order-based design of multi-phased MPEAs. |
| Proceedings Inclusion? |
Planned: |