温度对活塞环用Mo-C共混复合涂层的影响

A. Tyagi, S. Pandey, Q. Murtaza, R. S. Walia
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引用次数: 0

摘要

采用APS涂层工艺制备了具有良好表面形貌和丰富摩擦学性能的Mo-C共混活塞环涂层。复合涂层的表面粗糙度值在450℃时达到最大值。Mo-C基涂层的实验结果表明,当温度在30 ~ 450°范围内变化时,COF从0.6减小到0.3,比磨损率从0.2增大到0.5 mm3/Nm。比磨损率的增加和COF的降低可能是由于Mo共混复合涂层上形成了摩擦膜。
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Effect of Temperature on Mo–C Blend Composite Coating for Piston Ring Applications
The Mo–C blend composite coating was effectively developed with good surface morphology and enriched tribological properties using APS coating procedure for piston ring applications. The surface roughness values of composite coating maximum at 450 °C. The experimental result of Mo–C based coating shows that as the temperature varies from 30 to 450 °, COF decreases from 0.6 to 0.3, while specific wear rate was increased from 0.2 to 0.5 mm3/Nm. The increase in specific wear rate and decrease in COF may be attribute due to tribofilm formation on Mo blend composite coating.
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