Abstract In this work, the morphology, thickness, chemical composition and mechanical properties of the tribofilm formed by a fully formulated CVT fluid are investigated by multiple techniques and linked to the frictional and wear characteristics of a pin-on-disc tribosystem. It is found that the tribosystem shows higher friction and wear when tested at 150 °C than at 80 °C. The main reason is that although the morphology and thickness are similar, the tribofilms formed at different temperatures have different chemical compositions and mechanical properties. The tribofilm formed at 150 °C is Fe richer and has greater hardness and shear strength, which leads to a higher tribochemical wear rate and a greater interfacial shear force.

中文翻译：

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由全配方 CVT 液形成的摩擦膜的多技术表征

摘要 在这项工作中，通过多种技术研究了由全配方 CVT 流体形成的摩擦膜的形态、厚度、化学成分和机械性能，并与销-盘摩擦系统的摩擦和磨损特性相关。发现摩擦系统在 150°C 下测试时比在 80°C 下显示出更高的摩擦和磨损。主要原因是虽然形态和厚度相似，但在不同温度下形成的摩擦膜具有不同的化学成分和机械性能。在 150°C 形成的摩擦膜富含 Fe，具有更大的硬度和剪切强度，从而导致更高的摩擦化学磨损率和更大的界面剪切力。