Abstract
High-entropy alloys (HEAs) inherently have four core effects that enable improvement in microstructure and properties. During the course of research on HEAs, other special materials, such as high-entropy (HE) superalloys, HE refractory alloys, HE bulk metallic glasses, HE carbides, HE nitrides, and HE oxides, have also been developed. All these materials have promising potential applications, e.g., in fabricating machine components, dies and molds, corrosion-resistant parts, cutting tools, functional coatings, hard-facing, thin-film resistors, diffusion barriers, and high-temperature structural components. Greater understanding of the basic science, accumulated knowledge and experience, and effective simulation and modeling will lead to the successful development of numerous HE materials with better properties in the future. This chapter first addresses several important high-entropy materials with promising potential applications and finally forecasts the trends and prospects in their research and development.