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金刚石颗粒粒径对Ni-Co/金刚石复合镀层微观组织和耐磨性能的影响 被引量:4

Effect of Particle Size on Microstructure and Anti-wear Properties of Ni-Co/Diamond Composite Coatings
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摘要 运用埋砂复合电沉积法制备了金刚石颗粒增强Ni-Co合金复合镀层,研究了金刚石颗粒粒径对Ni-Co/金刚石复合镀层微观组织结构、致密度、显微硬度和摩擦学性能的影响。结果表明:随金刚石颗粒粒径的增大,Ni-Co/金刚石复合镀层的致密度和显微硬度均随之降低,且当颗粒粒径为6~12μm时,复合镀层致密度最高为0.9,硬度最高达950HV;随金刚石颗粒粒径的增大,复合镀层的磨损失重逐渐减小,当金刚石在粒径125~150μm范围时,磨损失重最小。 The diamond reinforced Ni-Co alloy composite coatings are prepared by inter-sand co-deposition technology.It researches the effects of particle size on microstructure,the bulk density,microhardness,the wear resistance and mechanisms of Ni-Co/diamond composite coatings based on measuring the organization structure. The results show that the bulk density and microhardness of composite coatings decreases as the particle size increases,as the particle size between 6μm and 12μm,the bulk density and the microhardness of composite coatings up to 0.9 and 950 HV,respectively,which are the highest value of the composited coating. The wear losses of composite coatings decreases as the particle size increases,as the particle size between 125 μm and 150 μm,the wear losses of composite coatings is the minimum.
出处 《装备制造技术》 2015年第1期9-11,共3页 Equipment Manufacturing Technology
关键词 电沉积 埋砂法 金刚石 复合镀层 耐磨性能 electrodeposition inter-sand method diamond composite coating anti-wear properties
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