Abstract

In this paper, we study the effect of corrosion inhibitors in compositions of friction composites on corrosion processes and noise generation in friction units. Model composites containing complex corrosion inhibitors as target additives were prepared. Tribological tests of the friction composite were performed using the “plane-to-plane” scheme. Transfer films on the surface of a steel counterbody are shown to be formed predominantly by laminar wear particles of the composite with sizes up to 50 μm. X-ray photoelectron spectroscopy data confirmed the presence in the transfer films of all elements related to the main components of the friction material, including corrosion inhibitors. Climatic tests were carried out. In a friction pair with a composite containing no corrosion inhibitor, continuous corrosion of the metal counterbody is shown to be predominant while pitting actively develops over time. The degree of corrosion damage to the surface reaches 90–95% of the nominal contact area. The introduction of a complex corrosion inhibitor into the composition of friction composites in an amount of 1.5–3.0 wt % was established to reduce the degree of corrosion damage to the nominal friction area of the metal counterbody by 20–35%. Outside the nominal friction area, the effect of reducing the degree of corrosion damage to the surface area of the metal counterbody by 50–60% was found. Triboacoustic tests were carried out on metal counterbodies subject to corrosion during climatic tests. Levels of sound pressure produced by the friction pair in the frequency range of 50 Hz–20 kHz are determined. The use of corrosion inhibitors was found to lead to a decrease in noise levels while the most significant decrease of 7–30 dB occurs in the high-frequency region of 6–20 kHz.

中文翻译：

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摩擦复合材料中缓蚀剂对金属配合体耐腐蚀性和摩擦噪声产生的影响

摘要

在本文中，我们研究了摩擦复合材料成分中的缓蚀剂对摩擦单元的腐蚀过程和噪声产生的影响。制备了含有复合缓蚀剂作为目标添加剂的模型复合材料。使用“平面到平面”方案对摩擦复合材料进行摩擦学测试。钢配对体表面上的转移膜主要由尺寸高达 50 μm 的复合材料层状磨损颗粒形成。X射线光电子能谱数据证实转移膜中存在与摩擦材料主要成分相关的所有元素，包括腐蚀抑制剂。进行了气候测试。在不含腐蚀抑制剂的复合材料的摩擦副中，金属配对体的连续腐蚀是主要的，而点蚀随着时间的推移而积极发展。表面腐蚀损伤程度达到标称接触面积的90%~95%。在摩擦复合材料的组合物中引入复合腐蚀抑制剂，用量为 1.5-3.0 wt%，可将金属配对体标称摩擦面积的腐蚀损坏程度降低 20-35%。在标称摩擦区域之外，发现可以将金属配对体表面区域的腐蚀损坏程度降低 50-60%。对在气候测试期间遭受腐蚀的金属配对体进行了摩擦声学测试。确定摩擦副在 50 Hz–20 kHz 频率范围内产生的声压级。研究发现，使用腐蚀抑制剂可以降低噪音水平，而 6-20 kHz 的高频区域最显着降低 7-30 dB。