用于汽车发动机部件的 DLC 和 GLC 涂层在润滑条件下的摩擦学特性

Q3 Chemical Engineering

International Journal of Applied Mechanics and Engineering Pub Date : 2023-12-19 DOI:10.59441/ijame/176508

Riyadh A. Al-Samarai, Y. Al-Douri

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引用次数: 0

摘要

现代汽车设计需要增加机械和热负荷，使其寿命更长、重量更轻。动力传动装置和发动机通常使用低摩擦硬涂层来防止磨损和减少摩擦。铬掺杂石墨状碳法用于评估涂层摩擦以及铬掺杂石墨状碳（Cr-GLC）在润滑条件下的反应。Cr-GLC 涂层和掺铬类金刚石碳 (Cr-DLC) 涂层分别采用物理气相沉积 (PVD) 和等离子体增强化学气相沉积 (PECVD) 的方法制备。结果表明，与干摩擦系数相比，润滑条件下的摩擦系数降低了 40%。由于具有优异的摩擦理化特性和紧凑的微观结构，Cr-DLC 的最佳摩擦阻力明显高于 Cr-GLC。粘度、腐蚀性和涂层微观结构用于衡量复合元素的影响。Cr-GLC 涂层最理想的特性是油中的添加剂不会与摩擦表面发生反应。

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Tribological properties of DLC and GLC coating for automotive engine components application under lubrication

Modern automotive designs are needed to increase mechanical and thermal loads that have longer lifespans and are lighter. The power transmissions and motors often use low-friction hard coatings to prevent wear and reduce friction. The Cr-doped graphite-like carbon method is employed for evaluating coating friction and responses to chromium-doped graphite-like carbon (Cr-GLC) under lubrication. Cr-GLC coatings and chromium-doped diamond-like carbon (Cr-DLC) coatings are arranged using physical vapor deposition (PVD) and plasma-enhanced chemical vapor deposition (PECVD), respectively. The results have demonstrated in comparison to the dry friction coefficient, the friction coefficient under lubrication conditions has been reduced by 40%. Due to its excellent frictional physicochemical properties and compact microstructure, Cr-DLC has an optimum tribological resistance that is significantly higher than that of Cr-GLC. Viscosity, corrosivity, and coating microstructure are used to measure the impact of composite elements. The most ideal characteristics of the Cr-GLC coating are attributed to the non-reaction of additives in oil with friction surfaces.

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来源期刊

International Journal of Applied Mechanics and Engineering Engineering-Civil and Structural Engineering

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

35 weeks

期刊介绍： INTERNATIONAL JOURNAL OF APPLIED MECHANICS AND ENGINEERING is an archival journal which aims to publish high quality original papers. These should encompass the best fundamental and applied science with an emphasis on their application to the highest engineering practice. The scope includes all aspects of science and engineering which have relevance to: biomechanics, elasticity, plasticity, vibrations, mechanics of structures, mechatronics, plates & shells, magnetohydrodynamics, rheology, thermodynamics, tribology, fluid dynamics.