Abstract:Ceramics-reinforced metal matrix composites (MMCs) are widely used in harsh working conditions due to their excellent wear resistance, toughness, high-temperature creep properties and fatigue strength, and have been used in high-end engineering industries such as biomedicine, aerospace, and electronics. Laser cladding is a new environmental protection technology, which melt the powder and the surface of the matrix and self-excite the coating formed by the ceramic and other special powders on the surface of the matrix through laser beams, which has the advantages of high deposition efficiency, controllable thickness, small thermal deformation, fast cooling, small dilution rate and metallurgical bonding. In this paper, the effect of the formation mode of laser cladding ceramic particles on the performance of MMCs was introduced, the interface strengthening effect of laser cladding auxiliary energy field and high-speed laser cladding technology on MMCs was reviewed, and the strengthening mechanism of ceramic particles and the mechanism of laser assisted energy field are analyzed. Finally, the current problems and prospects of laser-clad ceramic particle reinforced metal-based composites are expounded.