Physicochemical Tribomechanics of Antifriction Materials Operating in Heavy-Loaded Friction Pairs in Active Lubricating Media

IF 0.5 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Friction and Wear Pub Date : 2024-03-09 DOI:10.3103/S1068366623060077

L. I. Kuksenova, V. I. Savenko

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Abstract

Within the framework of physicochemical mechanics (the Rehbinder effect), the problems of the plasticizing and strengthening effect of the lubricating medium on the near-surface layers of metal tribomaterials are analyzed. The influence of modeling (petroleum jelly oil, glycerin, mineral oils, glycerin-based hydraulic fluids) and industrial (Buksol, Puma, and M-14V2) lubricant media that contain surfactants, is investigated on the main tribological (coefficient of friction, wear intensity), strength (yield strength, microhardness) and microstructural (broadening of X-ray lines, dislocation density and crystal lattice parameter) characteristics, as well as on the processes of diffusion redistribution of alloying elements in surface layers of tribomaterials, such as copper, brass, and bronze, when they are rubbed together with steel. The analysis of the conditions of formation and stable functioning of the regime of “non-wear” friction in these tribomaterials is carried out. It is shown that among industrial copper alloys, brass of the L90 type, aluminum bronzes BrA5 and BrA7, and tin bronzes BrSnP4-0.25 and BrSnP6.5-0.15 have the greatest wear resistance in surface-active lubricants. Examples of the implementation of the selective transfer mode in tribo-pairs used in railway and motor transport are given.

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在活性润滑介质中重负载摩擦对中工作的抗摩擦材料的物理化学摩擦力学

摘要-- 在物理化学力学（雷宾德效应）框架内，分析了润滑介质对金属摩擦材料近表面层的塑化和强化效应问题。研究了含有表面活性剂的模型（凡士林油、甘油、矿物油、甘油基液压油）和工业（Buksol、Puma 和 M-14V2）润滑介质对主要摩擦学（摩擦系数、磨损强度）、强度（屈服强度、显微硬度）和微观结构的影响、微硬度）和微结构（X 射线线宽、位错密度和晶格参数）特征，以及铜、黄铜和青铜等摩擦材料与钢摩擦时合金元素在表层的扩散再分布过程。对这些摩擦材料中 "非磨损 "摩擦机制的形成和稳定运行条件进行了分析。结果表明，在工业铜合金、L90 型黄铜、铝青铜 BrA5 和 BrA7 以及锡青铜 BrSnP4-0.25 和 BrSnP6.5-0.15 中，表面活性润滑剂的耐磨性最强。文中举例说明了在铁路和汽车运输中使用的三元对中实施选择性转移模式的情况。

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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.