ISSN   1004-0595

CN  62-1095/O4

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吴行阳, 阮敬杰, 葛宙, 杨义, 曹允, 张建华. 边缘效应对织构化Si-DLC膜油中摩擦学性能的影响[J]. 摩擦学学报, 2018, 38(4): 486-492. DOI: 10.16078/j.tribology.2018.04.014
引用本文: 吴行阳, 阮敬杰, 葛宙, 杨义, 曹允, 张建华. 边缘效应对织构化Si-DLC膜油中摩擦学性能的影响[J]. 摩擦学学报, 2018, 38(4): 486-492. DOI: 10.16078/j.tribology.2018.04.014
WU Xingyang, RUAN Jingjie, GE Zhou, YANG Yi, CAO Yun, ZHANG Jianhua. Influence of the Edge Effect on the Tribological Behavior of textured Si-DLC Films under Oil Lubrication[J]. TRIBOLOGY, 2018, 38(4): 486-492. DOI: 10.16078/j.tribology.2018.04.014
Citation: WU Xingyang, RUAN Jingjie, GE Zhou, YANG Yi, CAO Yun, ZHANG Jianhua. Influence of the Edge Effect on the Tribological Behavior of textured Si-DLC Films under Oil Lubrication[J]. TRIBOLOGY, 2018, 38(4): 486-492. DOI: 10.16078/j.tribology.2018.04.014

边缘效应对织构化Si-DLC膜油中摩擦学性能的影响

Influence of the Edge Effect on the Tribological Behavior of textured Si-DLC Films under Oil Lubrication

  • 摘要: 引起边缘应力集中的边缘效应是影响边界润滑条件下织构材料摩擦学性能的重要因素之一. 本文中采用激光加工、电化学和机械抛光的方法在不锈钢表面制备了边缘未修形和修形凹坑织构,在此基础上采用溅射/射频化学气相沉积技术沉积了Si-DLC膜,研究了边缘修形对织构化薄膜在油中摩擦学性能的影响. 基于有限元方法分析了加载条件下凹坑织构接触界面的应力分布,考察了修形对边缘效应的影响. 结果表明:边缘修形可大幅降低凹坑织构化薄膜与不锈钢对偶球配副间的摩擦以及对偶的磨损. 织构的摩擦学性能与边缘效应呈正相关关系,边缘修形可使凹坑边缘的最大接触应力降低30%左右,有利于缓和凹坑边缘的刮擦作用从而降低织构材料的摩擦磨损.

     

    Abstract: Edge effect causing stress concentration at the texture edges is an important factor affecting the tribological properties of textured materials. By laser ablation, electrochemical and mechanical polishing, a series of normal and edge-profiled dimple textures were prepared on stainless steel substrates. Si-DLC films were deposited on the substrates via sputtering and RF-CVD method to obtain the untextured, the normal and edge-profiled textured Si-DLC films, and the edge-profiling effect on the tribological performance under oil lubrication of the textured Si-DLC films was investigated. The contact stress distribution of the textures was analyzed by the finite element method to discuss the changes in edge effect due to edge-profiling. The results show that by edge-profiling, the friction of the textured Si-DLC films and the wear of the mated balls, as well as the maximum contact stress concentrated at the edge of the textures were reduced markedly. The tribological properties of the textures were positively related to the edge effect. The reduction of the maximum stress was thought to play an important role in lowering the friction and wear.

     

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