Abstract FeS-Cu copper-based self-lubricating bearing materials are prepared by mechanical alloying and powder metallurgy. The effects of ball milling time on the microstructure and properties of the material are analyzed. The dry friction properties of the material are tested on a pin–disc contact reciprocating test machine with the load of 200·N. The morphology and composition of the wear surface are observed and analyzed using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS). The test results show that the copper-based material containing FeS exhibits better antifriction and antiwear properties, and the friction coefficient of the friction pair is lower and more stable. Mechanical alloying can promote the uniform distribution of solid lubricant FeS, increase the bonding quality of FeS and the matrix, and enhance the formation and stability of the lubricating transfer film, as well as further improve the antifriction and anti-adhesion properties of the material. Furthermore, as the ball milling time increases, the friction coefficient of the material decreases gradually, and the amount of wear changes regularly.

中文翻译：

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机械合金化制备的FeS/Cu铜基自润滑轴承材料的摩擦学性能

摘要 通过机械合金化和粉末冶金制备FeS-Cu铜基自润滑轴承材料。分析了球磨时间对材料微观结构和性能的影响。材料的干摩擦性能在销-盘接触往复式试验机上进行测试，载荷为200·N。使用扫描电子显微镜 (SEM)、能量色散谱 (EDS) 和 X 射线光电子能谱 (XPS) 观察和分析磨损表面的形貌和成分。试验结果表明，含FeS的铜基材料具有更好的减摩抗磨性能，摩擦副的摩擦系数更低且更稳定。机械合金化可以促进固体润滑剂 FeS 的均匀分布，提高FeS与基体的结合质量，增强润滑转移膜的形成和稳定性，进一步提高材料的减摩抗粘性能。此外，随着球磨时间的增加，材料的摩擦系数逐渐降低，磨损量有规律地变化。