The Phase Stability and Mechanical Properties of (Co40Cr10Fe5Mo5Ni40)82,20Al17,80 Eutectic High Entropy Alloy

Abstract

Eutectic high entropy alloys (EHEA’s) have received great attention because of their good castability and excellent combination of ductility and strength properties. In this study, a new (Co 40 Cr 10 Fe 5 Mo 5 Ni 40 ) 82,2 Al 17,8 EHEA successfully designed and fabricated by vacuum arc melting method. EHEA was annealed at various temperatures (600-1200 ⁰ C) for 12 hours. The influence of annealing temperature on the microstructure, phase constituents and mechanical properties were investigated using X-ray diffraction (XRD), Rietveld analysis, scanning electron microscopy (SEM) and compression tests.