Microstructure and mechanical properties of AlCoxCrFeNi3-x eutectic high-entropy-alloy system

A series of AlCoxCrFeNi3-x Eutectic-High-Entropy-Alloys (EHEAs) were synthesized to investigate the effects of Co and Ni elements on the microstructure and mechanical properties. It was found that the Ni and Co elements in AlCoxCrFeNi3-x alloys could replace each other without changing the types of phases and the microstructure. All the alloys exhibited a uniform and typical eutectic microstructure with mixed structures of FeCrNi-type FCC and...