| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys III
|
| Presentation Title |
Prediction of the Composition for the Al-Co-Cr-Fe-Ni High-Entropy Alloys by the CALPHAD Method and Study on Microstructure and Mechanical Properties |
| Author(s) |
Ssu-Chi Huang, Yung-Chin Lin, Yee-Wen Yen |
| On-Site Speaker (Planned) |
Ssu-Chi Huang |
| Abstract Scope |
This study investigated the influence of Al addition on the phase evolution of Al-Co-Cr-Fe-Ni high entropy alloys using Pandat with the calculation of phase diagram (CALPHAD) method and high throughput calculation (HTC). In this study, six alloys with varying Al compositions were prepared by arc melting, followed by heat treatment and quenching. The results revealed that the increase of the Al content inducing a transformation from FCC to BCC/B2 and it was consistent with the simulation prediction. The density measurement indicated the lightweight property for most alloys, except Alloys1 and 2. The hardness test showed that the strength of the alloy increased with Al addition, with as-cast Alloy6 (Al30Co17.5Cr17.5Fe17.5Ni17.5) achieving the highest hardness value of 648 Hv. Compression tests demonstrated Alloy 3(Al15Co21.25Cr21.25Fe21.25Ni21.25) exhibited excellent strength and ductility. These results highlight the significant impact of Al addition on the mechanical properties and phase evolution of Al-Co-Cr-Fe-Ni high entropy alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, |