Microstructure and strengthening effects of novel Co-Cr-Fe-Ni-Re multicomponent alloys

Novel Co53.5−xNixCr20Fe10Re16.5 (x = 18.5, 23.5, 28.5 and 33.5 at.%) multicomponent alloys (MCAs) with high temperature application potential are presented. The phase transformation, refined microstructure and tensile properties were investigated for these MCAs under solutionized and annealed states. The solutionized MCAs with Ni content less than 28.5% consist of FCC, HCP laminate layers and nodular σ phase with Cr2Re3 type of tetragonal...