Efficiency of Antifriction Solid Lubricant Coatings for Metal–Polymer Friction Pairs

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL Journal of Friction and Wear Pub Date : 2024-08-17 DOI:10.3103/s1068366624700119

N. V. Titov, I. S. Kuznetsov, V. N. Logachev, M. I. Prudnikov, I. N. Kovaleva

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Abstract—

Tribotechnical testing results for antifriction solid lubricant coatings in a metal–polymer friction pair are presented. The testing has been carried out according to an ASTMG99 standard with the use of a friction machine operating according to a sphere–disk pattern at sliding velocity V = 0.8 m/s, load F = 23 N, and rotation frequency n = 310 min^–1. While testing, the value of sliding friction force was permanently registered, and the value of the friction coefficient was automatically calculated. Testing was carried out until preset friction path L = 2880 m accumulated. After testing a level of linear wear was measured for the spherical counterbody. Antifriction solid lubricant coatings based on molybdenum disulfide and polytetrafluoroethylene deposited onto steel samples were tested. Polyoxymethylene spheres 10 mm in diameter were used as a counterbody. The testing was performed with the use of different greases based on mineral and synthetic oils with a complex of antifriction additives. It is revealed that the use of antifriction solid lubricant coatings together with greases makes it possible to provide a 5.9 to 10.1-fold decrease in the linear wear of counterbodies, as well as a 1.5 to 2.3-fold decrease in the friction coefficient depending on the grade of the coating under application. By selecting an optimum combination of antifriction solid lubricant coatings and plastic grease one can achieve a decrease in the linear wear of the counterbodies amounting up to 14.2 times, and an approximately 4.4-fold decrease in the friction coefficient.

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金属-聚合物摩擦副固体润滑剂涂层的抗摩擦效率

摘要-本文介绍了金属-聚合物摩擦副中抗摩擦固体润滑剂涂层的测试结果。测试根据 ASTMG99 标准进行，使用的摩擦机按照球盘模式运行，滑动速度 V = 0.8 m/s，载荷 F = 23 N，旋转频率 n = 310 min-1。测试时，永久记录滑动摩擦力值，并自动计算摩擦系数值。测试一直进行到预设的摩擦路径 L = 2880 m 累积为止。测试结束后，测量了球形支撑体的线性磨损程度。对沉积在钢制样品上的二硫化钼和聚四氟乙烯固体润滑剂涂层进行了测试。直径为 10 毫米的聚甲醛球体用作反体。测试中使用了基于矿物油和合成油的不同润滑脂以及复合抗磨添加剂。试验结果表明，在使用润滑脂的同时使用固体润滑剂减摩涂层，可以将对体的线性磨损降低 5.9 到 10.1 倍，并根据涂层的等级将摩擦系数降低 1.5 到 2.3 倍。通过选择抗磨固体润滑剂涂层和塑料润滑脂的最佳组合，可以使对位体的线性磨损降低 14.2 倍，摩擦系数降低约 4.4 倍。

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来源期刊

Journal of Friction and Wear ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

1.50

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： Journal of Friction and Wear is intended to bring together researchers and practitioners working in tribology. It provides novel information on science, practice, and technology of lubrication, wear prevention, and friction control. Papers cover tribological problems of physics, chemistry, materials science, and mechanical engineering, discussing issues from a fundamental or technological point of view.