Abstract

In this paper, we study the effect of various physical and mechanical properties, chemical and phase compositions of diffusion coatings of steels on the durability of tribosystems during rolling friction with point and linear contacts in an I-20 oil medium. Gradient coatings obtained by ion nitriding in anhydrous media and titanium and chromium nitride coatings, respectively, obtained by cathode-ion bombardment and galvanic deposition on steels with various levels of hardness after heat treatment were considered. The main factors affecting the contact endurance of coated steels and ways to increase the durability of tribosystems during rolling friction were identified in comparative tests using friction machines. A direct linear dependence of the durability of the coating-base composition on the hardness of the base for steels without metastable structures in the material and a deviation from this dependence toward increasing durability for steels with residual austenite in the structure of the material were established.

中文翻译：

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滚动摩擦过程中“涂料基”成分的耐久性

摘要

在本文中，我们研究了I-20油介质中具有点接触和线性接触的滚动摩擦期间，钢的扩散涂层的各种物理和机械性能，化学和相组成对摩擦系统耐久性的影响。分别考虑了在无水介质中通过离子渗氮获得的梯度涂层，以及在热处理后分别通过阴极离子轰击和电沉积在具有不同硬度水平的钢上获得的钛和氮化铬涂层。在使用摩擦机进行的对比测试中，确定了影响涂层钢接触耐久性的主要因素以及在滚动摩擦过程中增加摩擦系统耐久性的方法。