| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Refractory Metals 2023
|
| Presentation Title |
The Phase, Microstructure and Mechanical Properties of High Entropy Mo-Nb-Ti-V-W-Zr Ultrahigh Temperature Refractory Alloy |
| Author(s) |
Lavanya Raman, Marcia Ahn, Arindam Debnath, Shuang Lin, Adnan Eghtesad, Adam Krajewski, Shunli Shang, Wesley Reinhart, Allison Beese, Bed Poudel, Zi-Kui Liu, Wenjie Li, Shashank Priya |
| On-Site Speaker (Planned) |
Lavanya Raman |
| Abstract Scope |
The discovery of more promising compositions for high temperature applications resulted in a paradigm shift in the alloy design strategy, which gave birth to refractory multicomponent high entropy alloys (HEAs). In our work, the selected Mo-Nb-Ti-V-W-Zr HEAs generated by high-throughput computational and machine learning models are manufactured utilizing vacuum arc melting and field assisted sintering technology. The experimental phase formation results are consistent with CALPHAD and Scheil simulations. The mechanical properties, such as hardness, fracture toughness, and yield strength, are evaluated. Furthermore, theoretical calculations such as surrogate model for hardness based on machine learning and crystal plasticity fast Fourier transform (CPFFT) are used to correlate the experimental mechanical data and predict the strengthening mechanism. It demonstrates an effective approach of inverse design for the new promising candidates of high-entropy refractory alloys. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, High-Temperature Materials, Other |