Research Advances in Brazed Coating Fabrication Technologies

As an efficient surface modification technique, brazed coating can significantly enhance the service performance and lifespan of mechanical components under high temperature, corrosive and wear-prone conditions. The fabrication methods of the brazed coatings were first reviewed. The characteristics and application effects of laser brazing,vacuum brazing and induction brazing techniques were analyzed. Subsequently, the synergistic effects between brazing materials(including nickel-based, copper-based, and iron-based alloys) and hard particles(such as diamond, tungsten carbide,and chromium carbide) were comprehensively discussed. Finally, the future development prospects of brazed coatings were outlined, aiming to provide insights for the preparation of high-performance brazed coatings.