About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Symposium
|
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
ON DEMAND: Precipitation Strengthened High Strength Al0.2CoCrFeNiMo0.5 High Entropy Alloy |
Author(s) |
Yasam Palguna, Rajesh Korla |
On-Site Speaker (Planned) |
Yasam Palguna |
Abstract Scope |
From past one decades, there is a growing interest on High Entropy Alloys (HEAs) because of their superior structural and physical properties compared to conventional alloys. The present work focuses on the precipitation hardening behavior of Al0.2CoCrFeNiMo0.5 wrought high entropy alloy, prepared through induction melting followed by hot forging and thermomechanical processing. Samples are solutionized at 1200oC followed by cold rolled up to 80% reduction in thickness. Cold rolled samples are annealed at different temperatures in the range of 200 to 1200oC for 1hr followed by water quenching and the resultant microstructure evolution are studied using XRD, FE-SEM and TEM. Fine precipitates with BCC structure were observed in samples annealed at temperatures beyond 700oC. Hardness and tensile experiments were performed as a function of annealing temperature and peak hardness and strength were observed in the sample annealed at 700oC, beyond which the hardness was decreasing with increasing annealing temperature. |
Proceedings Inclusion? |
Undecided |