| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys II
|
| Presentation Title |
Prediction of the FCC Formation Region of the Co-Cr-Fe-Ni-Ti High-Entropy Alloys by the CALPHAD Method and Study on Microstructure and Mechanical Properties |
| Author(s) |
Yung-Chin Lin, Yu-Xuan Ho, Yee-Wen Yen, Satoshi Iikubo |
| On-Site Speaker (Planned) |
Yung-Chin Lin |
| Abstract Scope |
This study aims to develop high-entropy alloys (HEAs) more efficiently by combining the CALPHAD method and high-throughput computation. It investigates the microstructure and mechanical properties of the Co-Cr-Fe-Ni-Ti HEAs in the single-phase FCC region, exploring the effects on varying Cr content on alloy performance. Additionally, the study integrates first-principles calculations with experiments to simulate the alloy's elastic modulus. The HEA samples were prepared using arc melting and then aged at 1000°C for 720 h. Subsequent metallographic treatment is performed for experimental analysis. The results revealed that all alloys composed of the single-phase FCC structure. The hardness increased with the increase in Cr content, where alloy 3 (Co30Cr15Fe25Ni25Ti5) had the highest hardness, and its value is 488.1 Hv. Compressive tests demonstrate excellent plasticity, and the elastic modulus data reveals an increasing trend with higher Cr content. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, ICME, Phase Transformations |