|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||High Entropy Alloys VIII
||J-71: A Cuboidal B2-enhanced Dual-phase CrMnFeCoNiAl0.75 High-entropy Alloy with Excellent High-temperature Strength
||Lijing Lin, Zhihong Zhong, Peter K Liaw
|On-Site Speaker (Planned)
A dual-phase high-entropy alloy CrMnFeCoNiAl0.75 was found to be composed of the face-centered-cubic (FCC) and cuboidal B2 structures, and exhibited the high strength and acceptable ductility both at room and elevated temperatures for structural applications. The alloy had a high compression yield strength of 1.194 GPa and limited plasticity of 2.72% at room temperature, while it showed a high yield strength and adequate plasticity at elevated temperatures up to 500 ℃, the value of which was 1.070 GPa and 15.30 %, respectively. The excellent mechanical properties of the CrMnFeCoNiAl0.75 alloy were attributed to a superalloy-like microstructure, which was characterized by cuboidal B2 precipitates coherently embedded in the FCC matrix. Further increase in temperature resulted in pronounced softening.
||Planned: Supplemental Proceedings volume; Planned: Supplemental Proceedings volume