Abstract Copper and graphite are the main components of copper-based brake materials commonly used in high-speed trains. Their interaction influences the tribological performance of copper-based brake materials. In this article, with copper and graphite as the materials, three kinds of layered samples were prepared as pins and tested against a disc made of H13 steel. Friction tests were conducted under the condition of 0.8–2.35 m/s and pressure of 0.5 MPa using a pin-on-disc tribometer. Results showed that the friction coefficient decreased with an increase in the angle between boundary orientation and the friction direction in the range of 0°–90°. When the angle was 90°, the interaction between copper and graphite was the strongest. Graphite provided positions for friction film accumulation. Copper and its friction film covered and protected the graphite and boundary and reduced the friction coefficient.

中文翻译：

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层状摩擦材料铜和石墨的摩擦学行为

摘要 铜和石墨是高速列车常用的铜基制动材料的主要成分。它们的相互作用会影响铜基制动材料的摩擦学性能。在本文中，以铜和石墨为材料，制备了三种层状样品作为销钉，并在 H13 钢制成的圆盘上进行测试。摩擦试验是在 0.8-2.35 m/s 和 0.5 MPa 压力下使用针盘摩擦计进行的。结果表明，摩擦系数在0°～90°范围内随着边界取向与摩擦方向夹角的增大而减小。当角度为 90°时，铜和石墨之间的相互作用最强。石墨为摩擦膜堆积提供了位置。