Progress on Microstructure and Mechanical Properties of Light-weight High Entropy Alloys

High entropy alloy is a new type of alloy composed of 5 kinds or more metal elements with equal atomic ratio or non-equal atomic ratio. This kind of alloy has excellent physical and chemical properties. Recently, high entropy alloys have become a research hot spot in the material world, and significant progress has been made in studying various high performance high entropy alloys. Light-weight high-entropy alloys have excellent comprehensive performance and low density, which has attracted more and more special attention. In the field of aerospace, transportation and nuclear power industry, materials with low density, high strength, good plasticity and excellent high-temperature mechanical properties are usually needed. The research of such light and high entropy alloys is particularly important. This paper summarizes the progress of the microstructure and mechanical properties of Light-weight and high entropy alloys, and lists the characteristics of two typical light high entropy alloy systems, and finally discusses their future development. © 2024 Cailiao Daobaoshe/ Materials Review. All rights reserved.