A review on microstructures, mechanical properties and processing of high entropy alloys reinforced composite materials

Depending on the capacity of civilization to create the materials, alloys have evolved from simple to complex compositions. Advances in civilization are made possible by improved functions and performance of composites. Significant evolution and improvement have resulted in the development of special alloys such as stainless steels, high-speed steels, and superalloys throughout the last century. Over the past 14 years, there has been a lot of interest in High-Entropy Alloys (HEAs). Compared to conventional dilute alloys, HEA has a different alloy design concept. The appealing characteristics of HEA include its high thermal stability, remarkable creep and fatigue performances, and outstanding corrosion resistance. HEAs have novel properties such as their outstanding specific strength, superior mechanical performance at high temperatures, exceptional ductility, and fracture toughness at cryogenic temperatures, superparamagnetic, and superconductivity. These alloys could be used as refractory, structural, functional, and biomedical materials as a result of advancements in the sector. HEAs are of interest as reinforcement in metal matrix composites for new applications, due to their significant structural and functional capacity as well as richness of design, which motivates further research. In order to produce many HEA reinforcement-based composites with improved properties and functionality in the future, a thorough un-derstanding of the essence of HEAs is essential. The HEA is currently being investigated as a reinforcement particle in metal matrix composites. There are numerous and dispersed research projects on HEA reinforcement -based composites. In this review paper, it has attempted to compile important data on HEA reinforcement based composite materials. The review includes comprehensive coverage of (1) processing methods, (2) microstructure characterization, and (3) mechanical properties of HEA reinforcement based composite materials. A brief note on the potential application of HEA reinforcement based composite materials is also suggested.