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表面织构是一种改善摩擦学性能的有效手段.通过研磨抛光方法开发了一种新型表面织构技术,此表面织构的特点是表面微孔成型和抛光过程同步进行.同时利用此织构技术着重研究了研磨时间(0~120 min)、研磨速度(1.45~10.47 m/s)、研磨液质量分数(1%~15%)对织构参数(微孔面积密度、孔径分布及表面粗糙度)的影响规律.结果表明:表面微孔面积密度随着研磨时间增长而逐渐下降并最终趋于稳定;当研磨速度从1.45~10.47 m/s变化时,微孔面积密度从2.59%增至16.92%,微孔孔径及表面粗糙度随着研磨速度的增加而增加,当研磨速度低于2.09 m/s时容易获得10μm以下的微孔;当研磨液质量分数从1%~15%变化时,微孔面积密度从3.76%~11.70%变化,近似呈线性增加关系,质量分数高于9%时易于获得10μm以上孔径的分布表面.
Surface texture is an effective method to improve the tribology performance.A new type of surface texture technology has been developed by the grinding and polishing method.The surface texture is characterized by the simultaneous formation and polishing of the surface micro-pores.While using this texture The technology focuses on the effects of grinding time (0 ~ 120 min), grinding speed (1.45 ~ 10.47 m / s) and grinding fluid mass fraction (1% ~ 15%) on texture parameters (micropore area density, pore size distribution and surface roughness Degree) .The results show that the surface area density gradually decreases with the increase of grinding time and eventually becomes stable. When the grinding speed changes from 1.45 to 10.47 m / s, the area density of micropore increases from 2.59% 16.92%. The pore size and surface roughness increase with the increase of the polishing rate. When the polishing rate is lower than 2.09 m / s, the micropores with a size of 10μm or less are easily obtained. When the mass fraction of the polishing solution varies from 1% to 15% , The micropore area density changes from 3.76% to 11.70%, which shows a linear increase. When the mass fraction is higher than 9%, it is easy to obtain the distribution surface with the pore size above 10μm.