激光熔覆高性能非晶复合涂层的研究现状与分析

Research status and analysis of laser cladding high performance amorphous composite coatings

本文基于非晶涂层在材料保护和材料应用等方面具有优异的耐磨、耐腐蚀和力学性能的独特优势。介绍了国内外利用激光熔覆技术制备非晶复合涂层的研究现状。阐述了非晶复合涂层的制备和强化方式,归纳了激光熔覆工艺参数、熔覆合金元素种类与含量、不同添加材料等因素对非晶复合涂层形成及性能的影响,对比了不同参数和材料选择下显微硬度、摩擦学和耐腐蚀性能的差异,对非晶相与晶相的强化作用机理进行了探讨,并对激光熔覆制备高性能非晶复合涂层的未来发展进行了展望。

Based on the unique advantages of amorphous coatings in material protection and material application,such as excellent wear resistance,corrosion resistance and mechanical properties,the research status of amorphous composite coatings prepared by laser cladding technology at home and abroad was introduced in this paper.The preparation and strengthening methods of amorphous composite coatings were described.The influence of the laser cladding process parameters,types and contents of the cladding alloy elements and different additive materials on the formation and properties of amorphous composite coatings were summarized.The differences of microhardness,tribology and corrosion resistance under different parameters and materials were compared.The strengthening mechanism of amorphous phase and crystalline phase was discussed and the future development of high-performance amorphous composite coatings prepared by laser cladding was prospected.