The Microstructure and Mechanical Properties of FeCoNiCuMo High-Entropy Alloys

FeCoNiCuxMo and FeCoNiCuMox (x values in molar ratio, x = 0.2, 0.5, 0.8, 1) high-entropy alloy system were synthesized using a arc melting method. The microstructures and mechanical properties of the alloys were inves- tigated with X-ray diffraction, scanning electron microscopy (SEM), Vichers hardness testing and universal material testing machine. The both alloys exhibit quite simple FCC and BCC solid solution phases, the microstructures of the alloys are mixing phases of BCC and FCC, which exhibit as pre-eutectic and eutectic phases. The mechanical properties of both alloys are related to the amount of Cu or Mo elements.