| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys II
|
| Presentation Title |
J-67: Preferential Composition during Nucleation and Growth in Multi-Principal Elements Alloys |
| Author(s) |
Saswat Mishra, Alejandro Strachan |
| On-Site Speaker (Planned) |
Saswat Mishra |
| Abstract Scope |
Multi-principal elements alloys (MPEAs) have excellent high-temperature mechanical and irradiation-resistant properties. These properties are a result of high entropy in these systems. During operation, the alloy can undergo rapid local melting and recrystallization. Knowledge of the conditions around the nucleation of these alloys is critical from both applied and basic science points of view. Unfortunately, the experimental determination of nucleation is challenging owing to the small length and time scales. Thus, we use molecular dynamics simulations to calculate the composition of the nucleus as it grows in a CoCrCuFeNi equiatomic MPEA. We use polyhedral template matching to look at the crystal structure, followed by a cluster analysis that follows the composition of the nucleus as it grows. We observe that nucleation prefers specific compositions. |
| Proceedings Inclusion? |
Planned: |