Tuning the mechanical and high temperature tribological properties of Co-Cr-Ni medium-entropy alloys via controlling compositional heterogeneity

CoCrNi medium-entropy alloys (MEAs) system has been hailed as the potential high strength and ductile structural materials. However, the study on their tribological behaviors over a wide temperature range is still scarce. The current work investigates the effects of heterogeneous (Al, Ti) on the phase evolution, mechanical and high-temperature tribological performances of the MEAs. (Al, Ti) endows the MEAs a considerable solutal effect, which...