磨料添加剂对轮轨系统润滑油摩擦学性能的影响

L. F. Koroleva, R. Savrai, E. Prosviryakov, V. A. Kostarev, S. V. Pavlyshko, P. V. Kostarev
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引用次数: 0

摘要

本文研究了一种基于氧化铁和氧化铝固溶体的摩擦学活性磨料,以及一种由氧化锆和氧化钇添加剂改性的氧化铝和氧化铁固溶体的抛光性能,以及掺有这些磨料的润滑剂的摩擦学性能。与未改性的Al2O3·Fe2O3·ZrO2·Y2O3粉末相比,改性后的Al2O3·Fe2O3·ZrO2·Y2O3粉末具有更高的抛光能力,表面粗糙度明显降低。通过改变改性氧化物的含量,可以改变磨料粉的摩擦化学活性,并根据要抛光的材料选择最佳成分。这些磨料粉末的添加对轮轨接触润滑剂的摩擦学性能有重要影响。对润滑油成分的实验室测试表明,它们对轮轨接触具有有效的适用性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of abrasive additives on the tribotechnical properties of lubricants for the wheel–rail system
The paper studies the polishing power of a tribochemically active abrasive material based on a solid solution of iron and aluminum oxides, as well as a solid solution of aluminum and iron oxides modified by zirconium oxide and yttrium oxide additives, and the tribotechnical properties of a lubricant doped with these abrasive materials. The modified Al2O3·Fe2O3·ZrO2·Y2O3 powders prove to have an essentially higher polishing power producing a considerably lower surface roughness than that of the unmodified Al2O3·Fe2O3 powder. By varying the content of the modifying oxides, one can change the tribochemical activity of the abrasive powder and select the best composition depending on the material to be polished. The addition of these abrasive powders is shown to have an essential effect on the tribotechnical properties of the lubricant for the wheel–rail contact. The laboratory testing of the lubricant compositions suggests their effective applicability to the wheel–rail contact.
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