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采用中频磁控溅射和多弧离子镀相结合的工艺在硬质合金YT15刀片表面制备了MoS2-Zr复合涂层,考察了其形貌、结构和摩擦磨损性能,分析了复合涂层的减摩机理.结果表明,与纯MoS2涂层相比,MoS2-Zr复合涂层的硬度和与基体之间的结合力获得显著提高(纯MoS2涂层的硬度约为4.0 GPa,与基体之间的结合力约为49 N;MoS2-Zr复合涂层的硬度约为10.7 GPa,与基体之间的结合力约为55 N).与45#钢的对摩试验结果表明,MoS2-Zr复合涂层的摩擦系数和磨损率均小于纯MoS2涂层的摩擦系数和磨损率.MoS2-Zr复合涂层与对摩材料之间所形成的转移润滑膜是影响摩擦过程中的摩擦系数的关键因素之一.由于摩擦副间转移膜的存在,涂层和对摩材料的摩擦转变为涂层和转移膜之间的摩擦,从而降低了摩擦系数,提高了材料的耐磨损性能.
MoS2-Zr composite coating was prepared on the surface of YT15 carbide blade by IF magnetron sputtering and multi-arc ion plating. The morphology, structure and friction and wear properties were investigated. The effects of composite coating reduction The results show that compared with pure MoS2 coating, the hardness and bond strength between MoS2-Zr composite coating and the matrix are significantly improved (the hardness of pure MoS2 coating is about 4.0 GPa, The bonding strength is about 49 N. The hardness of MoS2-Zr composite coating is about 10.7 GPa, and the bonding strength with the substrate is about 55 N. The test results of the friction with 45 # steel show that MoS2-Zr composite coating Of the friction coefficient and wear rate are less than the pure MoS2 coating coefficient of friction and wear rate.MoS2-Zr composite coating and friction materials formed between the transfer lubricant film is the friction coefficient during friction one of the key factors Due to the existence of the interfacial transfer film, the friction between the coating and the friction material changes to the friction between the coating and the transfer film, thereby reducing the friction coefficient and improving the wear resistance of the material.