Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.

轮轨的磨损是铁路运输行业的主要问题。固体润滑剂是控制轮-轨界面处的磨损和摩擦的经济高效的替代方法，尤其是当在牵引力和能耗之间寻求微调的平衡时。在这项工作中，开发了由二硫化钼增强的乙烯基酯基体和碳纳米管组成的复合摩擦改性剂（CFM）。与用作参考的市售产品相比，总固体添加剂含量少于一半。CFM的基准研究是通过摩擦试验在双盘机器上以1.1 GPa的接触压力和不同的滑移值进行的。结果表明，与未润滑的情况相比，开发的CFM将牵引系数降低了10％，这与参考文献相似。但是，由于CFM润滑导致的磨损，钢部件的总质量损失低于参考测试。