About this Abstract |
Meeting |
TMS Specialty Congress 2025
|
Symposium
|
3rd World Congress on Artificial Intelligence in Materials & Manufacturing (AIM 2025)
|
Presentation Title |
Machine Learning-Driven Discovery of High-Hardness Multi-Principal Element Alloys With Physics Informed Priors |
Author(s) |
Eddie Gienger, Maitreyee Sharma Priyadarshini, Jarett Ren, Paulette Clancy |
On-Site Speaker (Planned) |
Eddie Gienger |
Abstract Scope |
Multi-principal element alloys (MPEAs) are known for their exceptional mechanical properties and thermal stability. However, traditional discovery methods are limited in their success given MPEAs complex compositions. Here, the previously developed Physical Analytics Pipeline (PAL 2.0), a Bayesian optimization framework employing active learning in a closed-loop setting is used to accelerate discovery. PAL 2.0 integrates Gaussian process modeling with experiments, guiding synthesis within an informed, optimized space. Through three experimental cycles, 20 novel MPEAs were synthesized. Samples in previously unexplored phase diagrams were characterized, achieving Vickers hardness values up to 1269, a 7% increase over previous benchmarks. A striking discovery is the appearance silicon and tantalum together, a combination not seen in the training dataset. The successful identification of new high-hardness alloys demonstrates PAL 2.0’s potential to optimize MPEAs efficiently. This approach presents a solution for the exploration of high-dimensional material systems, underscoring the framework's adaptability for advanced materials discovery. |
Proceedings Inclusion? |
Undecided |