(1. School of Materials Science and Engineering, Chang’an University, Xi’an 710064, China) (2. Key Laboratory of Advanced Materials of Ministry of Education, Southwest Jiaotong University, Chengdu 610031, China)
Compared with traditional metal materials, metal matrix composites have many excellent properties that single-phase materials do not have. They have been widely used in aerospace, transportation and manufacturing fields, and have gradually become a kind of important material in many high-tech fields. Highentropy alloy has important practical research value due to its good strength and toughness, high fatigue resistance, excellent wear resistance and electromagnetic properties. Due to the natural interfacial bonding between high-entropy alloy particles and metal matrix and the small difference in coefficient of thermal expansion, it can overcome the disadvantages of poor interfacial bonding stability and insufficient plasticity and toughness in the production of traditional composite materials, which provides an idea for the preparation of high-performance metal matrix composites. Focusing on the research progress of high-entropy alloy particle reinforced metal matrix composites, this paper summarizes the microstructure and properties of typical high-entropy alloy systems and the effects of the preparation methods as well as interface and particle characteristics of high-entropy alloy particle reinforced metal matrix composites on their micromorphology and mechanical properties.