The microstructure, hardening behavior, and adhesive wear behavior of Al0.3CrFe1.5MnNi0.5 high‐entropy alloys were investigated. All alloys exhibit superior adhesive wear resistance to cast iron FC‐300, bearing steel SUJ‐2, and hot‐mold steel SKD‐61. The superior wear resistance of the alloys is attributable to the formation of ρ phase during the furnace cooling from the homogenization at 1100 °C or the in situ formation of the ρphase induced by the high interface temperature and severe plastic deformation during wear sliding.
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