| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
High Entropy Materials: Concentrated Solid Solution, Intermetallics, Ceramics, Functional Materials and Beyond
|
| Presentation Title |
Phase Stability of CoCrFeMnNi High Entropy Alloy at Elevated Temperature and Pressure |
| Author(s) |
Sitaram Aryal, Lizhi Ouyang, Michael C. Gao |
| On-Site Speaker (Planned) |
Lizhi Ouyang |
| Abstract Scope |
Temperature and pressure dependent phase stability of CoCrFeMnNi equimolar high entropy alloy (HEA) was investigated using methods based on density functional theory. The BCC and HCP phases of the CoCrFeMnNi HEA models were constructed using the special quasirandom structure method. Temperature and pressure dependent free energies of the HEA models were computed using the G(p,T) package. Phase stability, mechanical properties and other thermodynamic properties of these models will be presented. Additionally, local strain evolution under temperature and pressure will be discussed. |