Effects of Al addition on structural evolution and tensile properties of the FeCoNiCrMn high-entropy alloy system

A series of six-component (FeCoNiCrMn)100−xAlx (x = 0–20 at.%) high-entropy alloys (HEAs) was synthesized to investigate the alloying effect of Al on the structure and tensile properties. The microstructures of these alloys were examined using transmission electron microscopy, and crystalline phase evolution was characterized and compared with existing models. It was found that the crystalline structure changed from the initial single...