Abstract—

This article discusses fretting corrosion of different friction couples with the consideration of mechanical properties, chemical activity of contacted materials, effect of gaseous environment composition, and external electric current. It has been demonstrated that the fretting wear rate of materials of a friction couple depends on the difference of their electrode potentials. On the basis of the electron theory of adsorption and catalysis on semiconductors (oxides), the physical and chemical formation of a corrosive medium in the area of frictional contact, promoting development of electrochemical processes, have been analyzed. It is mentioned that the catalytic action of an oxide interlayer in fine dispersion is exposed in chemosorption acceleration of oxygen and moisture in a reactive radical in ion radical forms. It has been demonstrated that the existence of cathodic impurities in the alloy and an increase in cathodic depolarizer content (oxygen) in the friction area increases corrosion loss stipulated by electrochemical processes. Relative contribution of chemical and electrochemical corrosion of the friction contact is estimated during the progress of fretting. It is mentioned that the factors delaying the electrochemical processes are efficient for minimization of the fretting wear rate. Opportunities of application of cathodic and anodic electrochemical protection against fretting corrosion are considered.

中文翻译：

---

低振幅微动下的金属接触腐蚀

摘要—

本文讨论了不同摩擦副的微动腐蚀，并考虑了机械性能，接触材料的化学活性，气体环境成分的影响以及外部电流的影响。已经证明，摩擦副的材料的微动磨损率取决于它们的电极电势的差。根据对半导体（氧化物）的吸附和催化作用的电子理论，分析了摩擦接触区域中腐蚀性介质的物理和化学形成，从而促进了电化学过程的发展。提到了以离子自由基形式的反应性自由基中的氧和水分的化学吸附加速作用，暴露出细分散体中的氧化物中间层的催化作用。已经证明，合金中阴极杂质的存在和摩擦区域中阴极去极化剂含量（氧气）的增加会增加电化学过程所规定的腐蚀损失。在微动过程中，估计了摩擦接触的化学和电化学腐蚀的相对贡献。提到延迟电化学过程的因素对于最小化微动磨损率是有效的。考虑了应用阴极和阳极电化学保护以防止微动腐蚀的机会。在微动过程中，估计了摩擦接触的化学和电化学腐蚀的相对贡献。提到延迟电化学过程的因素对于最小化微动磨损率是有效的。考虑了应用阴极和阳极电化学保护以防止微动腐蚀的机会。在微动过程中，估计了摩擦接触的化学和电化学腐蚀的相对贡献。提到延迟电化学过程的因素对于最小化微动磨损率是有效的。考虑了应用阴极和阳极电化学保护以防止微动腐蚀的机会。