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Friction behaviors of rough chromium surfaces under starving lubrication conditions

机译：饥饿的润滑条件下粗糙铬表面的摩擦行为

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摘要

Surface texturing has become an effective method for improving the tribological properties of mechanical components under the oil lubrication. In this study, a rough surface, with the bumps arranged in a random array, was prepared by means of electrodeposition. A post-grinding and polishing processing was employed to fabricate flat areas for tribological tests under conformal contact. Compared with the smooth surfaces, the rough surface improves the load capacity of coatings at high loads. The effects of rough surfaces on friction reduction become more pronounced at higher speeds and lower normal loads due to the transition of lubricant regime from the boundary to mixed lubrication. (C) 2017 Elsevier B.V. All rights reserved.
机译：表面纹理化已成为一种改善油润滑下机械部件摩擦学性能的有效方法。在这项研究中，通过电沉积的方法制备了一个凹凸不平的粗糙表面，这些凹凸以随机阵列的形式排列。采用后研磨和抛光工艺制造平坦区域，以在保形接触下进行摩擦学测试。与光滑表面相比，粗糙表面提高了高载荷下涂层的载荷能力。由于润滑剂状态从边界润滑过渡到混合润滑，粗糙表面对降低摩擦的影响在较高的速度和较低的法向载荷下变得更加明显。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Applied Surface Science》 |2018年第ptab期|857-862|共6页
  • 作者

    Liu Derong; Yan Bo; Shen Bin; Liu Lei; Hu Wenbin;

  • 作者单位

    Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China|Tianjin Univ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electrodeposition; Surface texturing; Lubrication; Friction;

    机译：电沉积;表面纹理;润滑;摩擦;

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