| About this Abstract |
| Meeting |
3rd World Congress on High Entropy Alloys (HEA 2023)
|
| Symposium
|
HEA 2023
|
| Presentation Title |
High Throughput Multi-objective Optimization of FCC Complex Concentrated Alloys for Extreme Conditions |
| Author(s) |
Ibrahim Karaman, Raymundo Arroyave, James Paramore, Brady Butler, Trevor Hastings, Danial Khatamsaz, Daniel Lewis, Mrinalini Mulukutla, Nicole Person, Daniel Salas, Wenle Xu, Matthew Skokan, Douglas Allaire, George Pharr |
| On-Site Speaker (Planned) |
Ibrahim Karaman |
| Abstract Scope |
The FCC Complex Concentrated Alloys (CCA) compositional space is very broad, making it almost impossible to cover using conventional approaches to materials discovery. This talk will present an implementation of a framework combining an iterative multi-constrain multi-objective Bayesian optimization technique with CALPHAD-based phase stability predictions and machine learning-based modeling. This framework has been implemented for efficiently exploring the compositional space of FCC CCAs containing three or more elements among Co, Cr, Fe, Ni, V and Al, searching for alloys with the most optimum mechanical properties under extreme conditions. A total of 5 iterations (80 alloys) were produced and characterized in less than 9 months. These 80 alloys, which are only 0.15% of the total pool of 53124 alloys, were sufficient for achieving a clear picture of the objective mechanical properties Pareto front, demonstrating the high efficiency of the applied framework as compared to traditional approaches to materials discovery. |
| Proceedings Inclusion? |
Planned: Metallurgical and Materials Transactions |