碳和不锈钢上形成的硫化铁摩擦膜的结构特征

IF 1.8 4区工程技术 Q3 ENGINEERING, CHEMICAL

Lubrication Science Pub Date : 2023-07-21 DOI:10.1002/ls.1668

Makoto Miyajima, Mitsuharu Yonemura, Kazuyuki Kitamura, Keishi Matsumoto, Kazuyuki Yagi

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引用次数: 0

摘要

本文研究了在S45C和SUS304钢表面使用多硫化物添加剂进行边界润滑时形成的摩擦膜层。在摩擦试验中，SUS304盘的摩擦系数比S45C盘的摩擦系数波动更大，增加更缓慢。S45C圆盘上的摩擦膜由最外层的FeS2(黄铁矿)和最内层的FeS(三角铁)组成。值得注意的是，SUS304圆盘表面的摩擦膜层均含有黄铁矿。SUS304摩擦膜的最外层呈弱晶状，比S45C摩擦膜薄。SUS304盘面摩擦膜形成不良的潜在原因是摩擦系数不稳定和磨损。

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Structural characterisation of iron sulfide tribofilms formed on carbon and stainless steels

This study investigated tribofilm layers formed under boundary lubrication using a polysulfide additive on S45C and SUS304 steel surfaces. In the tribotests, the friction coefficient of the SUS304 disc fluctuated and increased more gradually in comparison to that of the S45C disc. The tribofilm on the S45C disc comprised the outermost and inner layers of FeS₂ (pyrite) and FeS (troilite), respectively. Notably, all the tribofilm layers on the SUS304 disc surface contained pyrite. The tribofilm on the SUS304 disc was weakly crystalline in the outermost layer and thinner than that on the S45C disc. The poor formation of the tribofilm on the SUS304 disc was potentially caused by the unstable friction coefficient and scuffing.

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来源期刊

Lubrication Science ENGINEERING, CHEMICAL-ENGINEERING, MECHANICAL

CiteScore

3.60

自引率

10.50%

发文量

审稿时长

6.8 months

期刊介绍： Lubrication Science is devoted to high-quality research which notably advances fundamental and applied aspects of the science and technology related to lubrication. It publishes research articles, short communications and reviews which demonstrate novelty and cutting edge science in the field, aiming to become a key specialised venue for communicating advances in lubrication research and development. Lubrication is a diverse discipline ranging from lubrication concepts in industrial and automotive engineering, solid-state and gas lubrication, micro & nanolubrication phenomena, to lubrication in biological systems. To investigate these areas the scope of the journal encourages fundamental and application-based studies on: Synthesis, chemistry and the broader development of high-performing and environmentally adapted lubricants and additives. State of the art analytical tools and characterisation of lubricants, lubricated surfaces and interfaces. Solid lubricants, self-lubricating coatings and composites, lubricating nanoparticles. Gas lubrication. Extreme-conditions lubrication. Green-lubrication technology and lubricants. Tribochemistry and tribocorrosion of environment- and lubricant-interface interactions. Modelling of lubrication mechanisms and interface phenomena on different scales: from atomic and molecular to mezzo and structural. Modelling hydrodynamic and thin film lubrication. All lubrication related aspects of nanotribology. Surface-lubricant interface interactions and phenomena: wetting, adhesion and adsorption. Bio-lubrication, bio-lubricants and lubricated biological systems. Other novel and cutting-edge aspects of lubrication in all lubrication regimes.