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1 Journal of Theoretical and Applied Mechanics

1 2024

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Evaluation of tribological behavior of tribopairs in water hydraulic radial piston pumps with multiple coatings and lubrication

Li Ran, Wei Wenshu, Liu Hao, Geng Xiangyu, Li Jianfeng, Lai Yuehua, Chen Rongming, Li Dongze, Yu Tianliang, Wang Dalong, Ye Jian, Li Shoubin, Wang Wei, Wu Huigang

Journal of Theoretical and Applied Mechanics

2024

Vol. 62 nr 4

841--854

In order to explore the tribological behavior of slipper/eccentric cam tribopairs under different lubrication conditions at power ends of water hydraulic radial piston pumps, friction-wear tests were carried out. It is found that tribopairs under water-based lubrication exhibited better friction-reducing performances than those under water lubrication alone. The average steady-state friction coefficient under water-based lubrication was between 0.17 and 0.23. HMn62-3-3-0.7/17-4PH tribopair using water-based lubrication exhibited the lowest wear rate of 1.1 · 10-12 mm3/N·m. The findings of this study offer a reference for the identification of potential material pairs for slipper/eccentric cam tribopairs.