About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys V: Mechanical Behavior
|
| Presentation Title |
Commercial Alloys Through a High-Entropy Lens |
| Author(s) |
Daniel B. Miracle, Stephane Gorsse |
| On-Site Speaker (Planned) |
Daniel B. Miracle |
| Abstract Scope |
After over 20 years of intense study, there is not yet a compelling high entropy alloy (HEA) application. To explain this, we hypothesize that a major fraction of HEAs are compositionally similar to many commercial alloys, especially those based on 3d transition metals. We explore this hypothesis by characterizing commercial alloys from a high entropy perspective – we calculate their ideal configurational entropy and lattice distortion. We also calculate the compositional distances between nearly 1500 commercial alloys and HEAs. We conclude that the HEAs studied to date have not displaced commercial alloys because many of the former have sufficient compositional similarity to the latter. We also show that three principal elements are sufficient to achieve exceptional properties, and that one of those elements typically reach concentrations as high as 75 at.%. To guide future work, we highlight compositional areas as yet untouched by both conventional alloys and the HEA approach. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Process Technology, |