| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Elements Alloys X: Alloy Development and Properties
|
| Presentation Title |
Strengthening in HEAs by Solute-solute Interactions and Short-range-order |
| Author(s) |
William A. Curtin, Shankha Nag, Binglun Yin |
| On-Site Speaker (Planned) |
William A. Curtin |
| Abstract Scope |
Strengthening in HEAs has been accurately predicted in a number of HEAs using an analytic theory that assume a random alloy without solute-solute interactions. In alloys with moderate strength both solute-solute interactions in the random alloy and short-range-order (SRO) driven by solute-solute interactions could have some non-negligible impact on strengthening. Here, we present extensions of the original random theory to include solute-solute interactions and SRO, with easy-to-apply analytical models when interactions extend over only a few neighbor shells. Applications of the extended theory are made to several FCC HEAs to demonstrate quantitative effects in the range of realistic material parameters with solute-solute interactions computed via first-principles Density Functional Theory. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Mechanical Properties, Modeling and Simulation |