激光熔覆金属基TiB_(2)复合涂层的研究进展

Research Progress of Laser Cladding Metal-based TiB_(2) Composite Coating

激光熔覆金属基TiB_(2)复合涂层因其熔点高、耐磨损、硬度高、抗氧化等诸多特点,从而被广泛应用于机械零件生产和表面修复领域中。随着资源有效利用和机械产品再制造为一体的可持续发展战略不断推进,此类涂层的应用前景更加广阔。介绍了TiB_(2)陶瓷涂层的优势和应用现状,综述了在不同基体上激光熔覆TiB_(2)复合涂层对基体表面性能的改善,以及激光比能、扫描速度和元素添加对TiB_(2)涂层组织和性能的影响,并对激光熔覆技术制备TiB_(2)复合涂层的未来发展进行了展望。

Laser cladding metal-based TiB_(2)composite coatings are widely used in the production of mechanical parts and surface repair due to their high melting point, wear resistance, high hardness and oxidation resistance. With the continuous advancement of the sustainable development strategy integrating the effective use of resources and the remanufacturing of mechanical products, the application prospects of this type of coating are broader. The advantages and application status of TiB_(2)ceramic coatings, focusing on the improvement of the surface properties of the substrate by laser cladding TiB_(2)composite coatings on different substrates were briefly introduced, as well as the effects of laser specific energy, scanning speed and element addition on TiB_(2)coatings. The influences of structure and performance, and the future development of TiB_(2)composite coating prepared by laser cladding technology were prospected.