| 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 |
The effects of short-range order on defect energy statistics in concentrated solid solutions |
| Author(s) |
Matthew Daly, Ritesh Jagatramka, Akash Baski, Novin Rasooli |
| On-Site Speaker (Planned) |
Matthew Daly |
| Abstract Scope |
Recent studies of concentrated solid solutions, which include multi-principal element and medium/high entropy alloys, have emphasized the role of solute-defect interactions in defining the nanoscale defect metallurgy. Here, we overview recent progress in connecting the effects of short-range order in these systems to the statistics of defect energies (e.g., solute site energies, point defect energies, and planar fault energies). These statistics have important implications on phase stability, vacancy transport and diffusion, and the partitioning of plastic strain amongst deformation mechanisms, which we explore using molecular statics and kinetic Monte Carlo simulations. As a part of this discussion, we also provide results on the critical length-scale where statistical fluctuations diminish and defect energies converge to bulk values, which defines the spatial bounds of solute effects. To conclude, we comment on the strength of short-range order effects on defect energy statistics and the associated implications for the operation of deformation mechanisms. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Modeling and Simulation |