用于轮轨界面的碳纳米管复合摩擦改进剂的研制

IF 1.7 4区 材料科学 Q3 MATERIALS SCIENCE, COMPOSITES
J. Vélez, Jesús Antonio Carlos Cornelio, R. Sierra, J. F. Santa, L. Hoyos-Palacio, R. Nevshupa, A. Toro
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引用次数: 4

摘要

车轮和轨道的磨损是铁路运输业的一个主要问题。固体润滑剂是控制轮轨界面磨损和摩擦的一种经济高效的替代品,尤其是在寻求牵引力和能耗之间的微调平衡时。本工作开发了由二硫化钼和碳纳米管增强的乙烯基酯基体组成的复合摩擦改进剂。与用作参考的市场上可获得的商业产品相比,总固体添加剂含量不到一半。在1.1GPa的接触压力和不同的滑移值下,通过在双圆盘机器中进行摩擦学试验,对CFM进行了基准研究。结果表明,与类似于参考的无润滑条件相比,所开发的CFM将牵引系数降低了10%。然而,由于CFM润滑下的磨损,钢构件的总质量损失低于参考试验。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
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.
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来源期刊
Advanced Composites Letters
Advanced Composites Letters 工程技术-材料科学:复合
自引率
0.00%
发文量
0
审稿时长
4.2 months
期刊介绍: Advanced Composites Letters is a peer reviewed, open access journal publishing research which focuses on the field of science and engineering of advanced composite materials or structures.
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