About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
Interfacial Chemical Short-Range Order and Its Influence on Solid–Liquid Interfacial Free Energy and Anisotropy in High-Entropy Alloys |
| Author(s) |
Sepideh Kavousi, Mohsen Asle Zaeem |
| On-Site Speaker (Planned) |
Sepideh Kavousi |
| Abstract Scope |
Chemical short-range order (CSRO) is an intrinsic feature of high-entropy alloys, yet its role at the solid–liquid (SL) interface remains essentially unexplored. Using the Fe-Ni-Al-Cr-Co alloy as a benchmark, this work applies atomistic simulation to quantify how CSRO alters the SL interfacial free energy ã and its crystallographic anisotropy. Using an embedded-atom-method potential, we generate solid and liquid states spanning a controlled range of CSRO via hybrid Monte Carlo/molecular dynamics. The capillary fluctuation method across (100), (110), and (111) orientations yields ã and the anisotropy parameters. Beyond the overall degree of ordering, we resolve Warren–Cowley parameters as a function of distance from the interface to test whether ordered motifs in the solid and liquid preferentially segregate to the SL boundary or remain randomly dispersed, and whether such interfacial enrichment or depletion correlates with changes in ã and its anisotropy. |
| Proceedings Inclusion? |
Planned: |