Influence of dimple shape on tribofilm formation and tribological properties of textured surfaces under full and starved lubrication
Influence of dimple shape on tribofilm formation and tribological properties of textured surfaces under full and starved lubrication
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凹坑形状对充分润滑和饥饿润滑下织构表面摩擦膜形成和摩擦学性能的影响
DOI：
10.1016/j.triboint.2019.03.047
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发表时间：
2019
影响因子：
6.2
通讯作者：
Wilfred T Tysoe
中科院分区：
文献类型：
--
作者：
Yufu Xu;Quan Zheng;Rasha Abuflaha;Dustin Olson;Octavio Furlong;Tao You;Qiangqiang Zhang;Xianguo Hu;Wilfred T Tysoe
润滑条件对摩擦膜的形成有重大影响，进而影响摩擦学行为。在这项工作中，使用销板摩擦计测量了摩擦膜形成对椭圆形纹理表面摩擦学行为的影响。结果表明，在充分润滑下，吸附油膜控制钢/钢摩擦副的摩擦磨损行为，但在缺乏润滑下，摩擦膜的形成显着影响摩擦学行为。具有椭圆形凹痕的适当纹理表面有助于获得优异的减摩和抗磨性能。然而，椭圆形的长轴与短轴的比率过高会导致高接触应力，从而破坏摩擦膜。
Lubrication conditions have significant influences on the formation of tribofilms and then affect tribological behavior. In this work, the influence of tribofilm formation on the tribological behavior of textured surfaces with oval shapes was measured using a pin-on-plate tribometer. The results show that, under full lubrication, the adsorbed oil film controlled the friction and wear behavior of steel/steel tribopairs but under starved lubrication, the formation of a tribofilm significantly influenced the tribological behavior. The appropriate textured surfaces with oval-shaped dimples contribute to obtaining excellent antifriction and antiwear behavior. However, excessively high ratios of the major to the minor axis of the oval can result in high contact stresses which can destroy the tribofilm.