Fast moving prospects of multi-principal component alloys with high mixing entropy

Multi-component high-entropy alloys have been developed based on the strategy of equi-atomic ratio and high mixing entropy. They are generally composed of over five kinds of major components, and have distinctive microstructure and properties. According to current research, high-entropy alloys have both scientific significance and application potential. In this paper their definition, microstructure, properties and applications are reviewed, together with a description of the latest research results.