Abstract

The paper is a theoretical study of mechanically activated processes in tribocontact, which lead to the formation of a lubricating film between rubbing bodies. The adhesive aspect of tribofilm formation is considered using the condition of the mechanical activation of the friction surface. This condition is satisfied when the adhesion energy becomes greater than the cohesion energy. The Hamaker constant is used to describe not only the adhesive interaction during friction, but also the amount of matter transferred when the mechanical activation condition is met. It is shown that the adhesive effect decreases with the second power of the distance from the friction surface. A relationship is derived that relates tribological characteristics to the Hamaker constant as the fundamental characteristic of the material. It is shown how the friction coefficient in the steady-state regime depends on the counterbody material and the antifriction transfer film material. Numerical results are compared to experimental data.

中文翻译：

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基于Lifshitz-Hamaker黏性相互作用理论的摩擦材料选择标准

摘要

本文是对摩擦接触中的机械活化过程进行理论研究，该过程导致在摩擦体之间形成润滑膜。使用摩擦表面的机械活化条件来考虑摩擦膜形成的粘合方面。当粘附能变得大于内聚能时，满足该条件。Hamaker常数不仅用于描述摩擦过程中的胶粘剂相互作用，而且还用于描述满足机械激活条件时转移的物质量。结果表明，随着离摩擦表面的距离的二次幂，粘合效果降低。推导了一种关系，该关系将摩擦学特性与作为材料基本特性的Hamaker常数相关联。示出了稳态状态下的摩擦系数如何取决于配对体材料和减摩转移膜材料。将数值结果与实验数据进行比较。