About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Multi-Principal Elements Alloys X: Structures and Modeling
|
Presentation Title |
Development of Novel Refractory High-entropy Alloys via High-throughput Alloy-design Approach |
Author(s) |
Saryu Jindal Fensin, chanho Lee, James Valdez, Nan Li |
On-Site Speaker (Planned) |
Saryu Jindal Fensin |
Abstract Scope |
Refractory high-entropy alloys (RHEAs) have received great attention due to their high yield strength, and excellent resistance to softening at high-temperatures. However, there still exist vast unexplored regions of composition spaces within this HEA family that could lead to enhanced properties. Thus, to explore this space in an efficient manner, we propose to use a high throughput experimental manufacturing approach coupled with machine learning. In this work, we will present initial results from this approach based on the composition: Nb-Mo-Ta-Ti-V. The compositions of the RHEAs were changed one at a time in the thin films that were fabricated using physical vapor deposition (PVD). The morphology, structure, and chemical compositions of the designed RHEAs was characterized and the properties measured using nanoindentation techniques such as hardness and modulus. This data was then used as an input into a machine learning model to elucidate relationships between chemical composition and strength. |
Proceedings Inclusion? |
Planned: TMS Journal: Metallurgical and Materials Transactions |
Keywords |
High-Entropy Alloys, High-Temperature Materials, |