|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||High Temperature Phase Stability and Mechanical Behavior of Face-centered Cubic High Entropy Alloys
||Min-Gu Jo, Jin-Yoo Suh, Jae-Hyeok Shim, Heung Nam Han, Woo-Sang Jung
|On-Site Speaker (Planned)
To evaluate the availability of face-centered cubic (FCC) high entropy alloys for the high temperature structural applications, not only the mechanical properties but also phase stability at high temperature should be investigated. In this study, we studied a group of modified alloys of 5-component equi-molar alloy of CoCrFeMnNi, which is also known as Cantor alloy, by help of CALPHAD method varying melting temperature, width of FCC single phase region, and electronegativity difference to discuss the individual effect on high temperature applicability of the alloys. To check the phase and mechanical stability of the alloys at high temperature region, annealing experiment, high temperature tensile tests, and creep measurements were carried out at the temperature ranging from 823 to 1023 K. Detailed microstructural characterization including SEM-EBSD and TEM was carried out to discuss the microstructural development during prolonged high temperature exposure.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume