About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Local Ordering in Materials and Its Impacts on Mechanical Behaviors, Radiation Damage, and Corrosion
|
Presentation Title |
Defect Energy Statistics in Concentrated Solid Solutions |
Author(s) |
Matthew Daly, Ritesh Jagatramka, Amir Shirsalimian, Novin Rasooli |
On-Site Speaker (Planned) |
Matthew Daly |
Abstract Scope |
Recent studies of concentrated solid solutions, which include multi-principal element and high entropy alloys, have underscored the role of solute-defect interactions in defining the operation of deformation mechanisms at the nanoscale. In this presentation, we overview recent progress in connecting the arrangement of solute in these systems to the statistics of defect energies (e.g., solute site energies, vacancy formation and migration energies, and planar fault energies). These statistics have important implications on phase stability, defect transport, 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 on solute effects. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Computational Materials Science & Engineering, Mechanical Properties |