高熵合金及其他高熵材料研究新进展

High-entropy (HE) materials are defined as novel multi-principal materials that contain several principal elements (usually ≥ 5) in an (equa) equi-molar ratio, and the design concept of HE materials introduces a new way to improve the properties of materials. Due to their unique crystallographic structure characteristics, HE materials show many different characteristics of microstructures and properties compared with conventional materials.The HE materials have great potential applications in many fields. At present, many kinds of high-entropy materials were prepared with excellent properties in mechanics, physics or chemistry, such as high strength and elongation, distinguished thermal stability, wear resistance, magnetic, conductivity and corrosion resistance. This paper reviews the recent research and development of high-entropy alloys, high-entropy ceramics and high-entropy intermetallics, and summarizes their structure characteristics, microstructures, properties and strengthening mechanisms. In the future, high throughput calculation and preparation will be an important and fast way to design this kind of multi-component materials.