| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
| Presentation Title |
Mechanical Behavior of 16 Refractory High Entropy Alloys Under Compressive and Tensile Stress: A Molecular Dynamics Study |
| Author(s) |
Abdullah Al Mamun, Yanqing Su, Xiang-Guo Li |
| On-Site Speaker (Planned) |
Abdullah Al Mamun |
| Abstract Scope |
Refractory high entropy alloys (RHEAs) are distinguished by superior mechanical properties at high temperature. This study investigates the behavior of RHEAs under compressive and tensile stress using molecular dynamics (MD) simulations with the LAMMPS. The mechanical response of these alloys is investigated at temperatures from 300K to 1673K. Sixteen distinct alloy configurations are analyzed, including one quinary, five quaternary, and ten ternary systems within the MoNbTaVW alloy system. These configurations are in equilibrated states post- monte arlo/molecular dynamics (MD/MC) simulations. The simulations use the moment tensor potential (MTP), a machine-learned interatomic potential for the MoNbTaVW alloy system. The study also aims to understand the impact of chemical short-range order (CSRO) and lattice distortion on the tensile and compressive properties of these alloys. Additionally, a comprehensive machine learning model is developed to predict key mechanical properties under compressive and tensile stress, further enhancing the scientific rigor of the study. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Other, Modeling and Simulation |