Abstract A newly synthesized SiC-graphite composite material was tested against a conventional martensitic stainless steel to evaluate its tribological properties through dry sliding using a pin on disc equipment. The tests were conducted at two velocities of 1.57 m/s and 7 m/s and a constant pressure of 0.5 MPa. The working temperature ranged from room temperature to higher temperatures of 100, 200, 250, 300 up to 400 °C. The friction coefficient increased with increase in temperature for tests conducted at the lower velocity. Conversely, the COF decreased with increase in temperature for high velocity testing condition. When the pin wear was considered, a severe wear was observed for all tests conducted at 1.57 m/s when compared to trials at 7 m/s, where the wear was characterized by mild wear. The analysis of the pin surface revealed that as and when the friction layer was smooth, compact and continuous, the pin wear would appreciably decrease. A bedding procedure was then proposed to attain mild wear even at 1.57 m/s.

中文翻译：

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温度和滑动速度对 SiC-石墨复合材料对马氏体钢干滑动行为的影响

摘要 将一种新合成的 SiC-石墨复合材料与传统的马氏体不锈钢进行了测试，以通过使用盘式销钉设备进行干滑动来评估其摩擦学性能。测试在 1.57 m/s 和 7 m/s 两种速度和 0.5 MPa 的恒定压力下进行。工作温度范围从室温到 100、200、250、300 到 400 °C 的更高温度。对于在较低速度下进行的测试，摩擦系数随着温度的升高而增加。相反，对于高速测试条件，COF 随温度升高而降低。当考虑销磨损时，与以 7 m/s 进行的试验相比，在 1.57 m/s 下进行的所有测试都观察到严重磨损，其中磨损的特征是轻度磨损。销表面分析表明，当摩擦层光滑、致密和连续时，销磨损会明显减少。然后提出了一种垫层程序，即使在 1.57 m/s 时也能达到轻度磨损。