About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Symposium
|
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
Designing High-entropy Intermetallic Alloys: Refractory B2 Phases |
Author(s) |
Jie Qi, Xuesong Fan, Rui Feng, Peter K. Liaw, S. Joseph Poon |
On-Site Speaker (Planned) |
Jie Qi |
Abstract Scope |
Data-driven methods, such as supervised machine learning (ML), have shown success in predicting the compositions of solid-solution high-entropy alloys (HEAs). However, this method is rarely applied to predicting intermetallic phases due to limited data and the low effectiveness of ML features. Ordered high-entropy body-centered-cubic (BCC) phases with the B2 structure, particularly those formed with refractory elements and aluminum (refractory-B2), are of interest due to their high strength, and corrosion and oxidation resistance. The design of refractory-B2 using ML and characterization of structural and mechanical properties will be presented. Several B2 refractory HEAs developed with the use of physics-based features and optimized by feature engineering and active learning have shown great compression plasticity and high strength. |
Proceedings Inclusion? |
Undecided |