Effect of copper nanoparticle concentration on tribological performances of cylinder liner piston ring

IF 1.8 4区 工程技术 Q3 ENGINEERING, CHEMICAL
Huabing Yin, Xuecheng Zhang, Zhiwei Guo, Zhongzhi Liu, Xiang Rao, Chengqing Yuan
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引用次数: 0

Abstract

The performance of cylinder liner piston ring (CLPR) that worked under harsh conditions significantly affected the reliability of diesel engines. Nano-copper lubricant additives have recently been introduced due to their good anti-wear properties. This study aims to gain insights into the interactions between concentrations of nano-copper lubricant additives and the tribological performance of CLPR. Tests are performed on a reciprocating sliding test rig under different operating conditions, and the tribological performances are characterized by the friction coefficient, wear mass losses, and morphologies of worn surface. The experimental results indicated that the optimal concentration of nano-copper additives is 2 wt%. Additionally, deposition of the Cu nanoparticles on the worn surface during the friction process facilitates the formation of the mending layer. These findings would aid to provide a technical reference for the application of nano-copper additives in diesel engines.

铜纳米颗粒浓度对气缸套活塞环摩擦学性能的影响
缸套活塞环(CLPR)在恶劣条件下的工作性能严重影响了柴油机的可靠性。纳米铜润滑添加剂由于其良好的抗磨性能,最近被引入。本研究旨在深入了解纳米铜润滑剂添加剂浓度与CLPR摩擦学性能之间的相互作用。在往复滑动试验台上进行了不同操作条件下的试验,通过摩擦系数、磨损质量损失和磨损表面形貌来表征其摩擦学性能。实验结果表明,纳米铜添加剂的最佳浓度为2wt%。此外,在摩擦过程中,Cu纳米颗粒在磨损表面的沉积促进了修补层的形成。这些发现将有助于为纳米铜添加剂在柴油机上的应用提供技术参考。
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来源期刊
Lubrication Science
Lubrication Science ENGINEERING, CHEMICAL-ENGINEERING, MECHANICAL
CiteScore
3.60
自引率
10.50%
发文量
61
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.
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