| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
2025 Technical Division Student Poster Contest
|
| Presentation Title |
SPU-14: Effect of Annealing on the Microstructure and Mechanical Properties of Quaternary High-Entropy Alloys at Different Treatment Durations |
| Author(s) |
Rakhmatjon Gaipov, Elyorjon Jumaev, Omon Sultonov, Amir Abidov, Farkhod Abdullaev, Orifjon Mikhliev |
| On-Site Speaker (Planned) |
Rakhmatjon Gaipov |
| Abstract Scope |
This study explores the microstructural evolution and mechanical properties of quaternary AlCoCrNi high-entropy alloys subjected to heat treatment at 873 K for durations of 72 and 192 hours. Heat treatment for 72 hours resulted in a microstructure comprising B2 dendrites, BCC interdendrites, and sigma phases. Extending the duration to 192 hours led to the formation of B2 dendrites, interdendritic sigma phases, and BCC structures. Annealing induced significant morphological changes, with the dendritic regions transitioning from spherical to needle-like and the interdendritic regions evolving from spinodal-like to plate-like. The sigma phase notably enhanced the yield strength to approximately 1172 MPa but caused a sharp decrease in compressive strain to 0.62%. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
High-Entropy Alloys, Characterization, Mechanical Properties |