| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Local Chemical Ordering and Its Impact on Mechanical Behaviors, Radiation Damage, and Corrosion
|
| Presentation Title |
Characterization of Ordering and Metastability in Multi-Principal Element Alloys |
| Author(s) |
Michael J. Kaufman, Nelson Delfino de Campos Neto, Robert Field, Cody Miller, Pedro Oliveira, Franciscso Coury |
| On-Site Speaker (Planned) |
Michael J. Kaufman |
| Abstract Scope |
The formation of short-range order (SRO) and long-range order (LRO) in multi-principal element alloys with increasing atomic-level complexity is challenging to establish experimentally and subject to misinterpretation. This challenge is complicated by the fact that some of the LRO phases appear to be metastable. To address these issues, we have used advanced characterization techniques to study ordering tendencies in both binary (Ni-Cr and Ni-V) and ternary transition metal alloys as a baseline for the more-complex multi-component alloys. Our goal was to determine unequivocally when SRO and LRO are present in this emerging class of materials and the impact of such behavior on the physical and mechanical properties. The project goals will be two-fold, first, to clarify how best to address these tendencies in this class of materials and to shed light on the role of these ordering tendencies on the mechanical properties of this class of alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Phase Transformations, Characterization |