|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Novel Equiatomic and Non-equiatomic Refractory High Entropy Alloys Exhibiting Tensile Ductility Even in As-cast State
||C. CEM Tasan, S.L. Wei, S.J. Kim, E.S. Park, Y.J. Zhang, T. Furuhara
|On-Site Speaker (Planned)
||C. CEM Tasan
After the recognition that conventional superalloys have reached their limits in high-temperature applications, there has been growing interest in developing alternative metallic-based structural alloys. Owing to their unique characteristics such as high melting point and excellent softening resistance, refractory metals have attracted significant focus in high-entropy alloys (HEAs) design. However, the investigation of novel refractory HEAs is largely retarded by the traditional trial-and-error alloy design framework, particularly within the non-equiatomic composition regime. To this end, here we present that by making use of the natural thermodynamic mixing characteristics, a series of non-equiatomic refractory HEAs can be developed. We show that these non-equiatomic HEAs exhibit desirable strength-ductility synergy and promising high-temperature performances.