ISSN   1004-0595

CN  62-1095/O4

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刘麟, 杨超, MartinDienwiebel. 润滑条件下铜锌合金表面粗糙度对磨损率的影响[J]. 摩擦学学报, 2017, 37(5): 625-630. DOI: 10.16078/j.tribology.2017.05.009
引用本文: 刘麟, 杨超, MartinDienwiebel. 润滑条件下铜锌合金表面粗糙度对磨损率的影响[J]. 摩擦学学报, 2017, 37(5): 625-630. DOI: 10.16078/j.tribology.2017.05.009
LIU Lin, YANG Chao, MARTIN Dienwiebel. Effect of Surface Roughness on Wear Rate of Copper-Zinc Alloy under Lubricated Conditions[J]. TRIBOLOGY, 2017, 37(5): 625-630. DOI: 10.16078/j.tribology.2017.05.009
Citation: LIU Lin, YANG Chao, MARTIN Dienwiebel. Effect of Surface Roughness on Wear Rate of Copper-Zinc Alloy under Lubricated Conditions[J]. TRIBOLOGY, 2017, 37(5): 625-630. DOI: 10.16078/j.tribology.2017.05.009

润滑条件下铜锌合金表面粗糙度对磨损率的影响

Effect of Surface Roughness on Wear Rate of Copper-Zinc Alloy under Lubricated Conditions

  • 摘要: 采用基于原位全息显微技术和放射性核素技术的试验装置对润滑条件下的CuZn36和100Cr6进行了摩擦磨损试验,分析了CuZn36在试验过程中的摩擦磨损特性,以及摩擦系数、磨痕表面粗糙度和实时磨损率之间的关系,进而建立了关于表面粗糙度的磨损模型,并通过拟合优度方法对磨损模型进行了评价. 结果表明:在试验磨合的初始阶段,CuZn36表面平整性被迅速破坏而产生了较高的磨损率,随着试验的进行,磨痕表面的强化层逐渐形成,表面粗糙度和实时磨损率逐渐降低并趋于稳定. 磨损模型的拟合优度R2的计算结果为90.23%,说明建立的磨损模型能够对给定工况下的实时磨损率进行较为准确的预测.

     

    Abstract: In this study, we investigated the running-in behavior of brass (i.e. 64% copper and 36% Zinc) sliding against 100Cr6 under lubricated conditions on a tribometer based on in-situ holographic microscopy and radionuclide technique. The corresponding relationships between coefficient of friction, surface roughness and wear rate of brass was studied. On this basis, the wear model for surface roughness was established. Moreover, the wear model was evaluated by method of fitting goodness. In the beginning of experiment, the surface of CuZn36 revealed rough being accompanied by high wear rate. For the remainder of the test, wear-resistant layer was gradually formed in the near-surface region of the wear track. Meanwhile, surface roughness and wear rate decreased and tended to be stable. The fitting goodness of wear model was 90.23%, which means that the model can predict wear rate effectively under certain working conditions.

     

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