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Study on the Lubrication Mechanism of Titanium Alloys with Surface Dimples Filled with Sn-Ag-Cu and TiC under Dry Sliding Friction
Journal of Materials Engineering and Performance ( IF 2.2 ) Pub Date : 2020-09-08 , DOI: 10.1007/s11665-020-05092-2
Bing Xue , Zhenyu Yang , Xiaoliang Shi , Hongyan Zhou , Guanchen Lu , Yawen Xue , Jin Zhang , Chaohua Wu

Improving the tribological performance of TC4 has far-reaching significance for its wide application in the field of automobile and robot. The lubricating behaviors of TC4 with mixed solid lubricant (Sn-Ag-Cu with TiC) filled into surface dimples (TAC) during dry rotary sliding were systematically investigated. The results show that TAC has better tribological properties than TC4 and TC4-P. It attributes to the synergistic effect of surface dimples and mixed solid lubricant. The mixed solid lubricant in dimples is easier to be extruded to the frictional interface. The uniform and wear-resistant lubricating layer containing SAC and TiC is formed on the worn surface of TAC, reducing the direct impact of counterpart ball on substrate material. The fluidity of SAC endows TAC with the ability of self-repairing.



中文翻译:

Sn-Ag-Cu和TiC填充表面凹痕的钛合金干滑摩擦润滑机理研究

改善TC4的摩擦学性能对其在汽车和机器人领域的广泛应用具有深远的意义。系统地研究了干式旋转滑动过程中填充在表面凹痕(TAC)中的混合固体润滑剂(Sn-Ag-Cu与TiC混合)对TC4的润滑行为。结果表明,TAC的摩擦学性能优于TC4和TC4-P。它归因于表面凹痕和混合固体润滑剂的协同作用。酒窝中的混合固体润滑剂更容易挤出到摩擦界面。在TAC的磨损表面上形成了包含SAC和TiC的均匀且耐磨的润滑层,从而减少了配对球对基材的直接冲击。SAC的流动性使TAC具有自我修复的能力。

更新日期:2020-09-08
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