Effect of different base oils on the friction behaviour of polycrystalline diamond compact

IF 1.8 4区工程技术 Q3 ENGINEERING, CHEMICAL

Lubrication Science Pub Date : 2024-01-14 DOI:10.1002/ls.1692

Ruyi Gou, Jingjing Chen, Xun Luo

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引用次数: 0

Abstract

This study analysed and discussed the friction and wear properties, as well as the interface evolution behaviour of polycrystalline diamond compact (PDC) under various base oils, through conducting friction experiments on PDC/Si₃N₄ with different base oils. The friction and lubrication mechanism of PDC under different base oils were examined using scanning electron microscopy (SEM), x-ray energy dispersive spectrometry (EDS), three-dimensional white light interferometry, and Raman spectroscopy. The results of the study demonstrated that PDC exhibited the best friction and wear performance when lubricated with synthetic oil PAO, followed by castor oil. The inferior performance of paraffin oil can be attributed to its low viscosity, resulting in a lower presence of ions capable of passivating the carbon dangling bond. Consequently, paraffin oil displayed inadequate oxidation stability and increased susceptibility to oil film destruction, ultimately leading to suboptimal friction and wear characteristics. Overall, this study provides valuable insights for industrial applications, aiding in the selection of appropriate base oils as cutting fluids for PDC cutting tools and enhancing the friction and wear properties of PDC.

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不同基础油对多晶金刚石压实摩擦性能的影响

本研究通过对 PDC/Si3N4 与不同基础油的摩擦实验，分析和讨论了聚晶金刚石致密片（PDC）在不同基础油下的摩擦和磨损特性以及界面演变行为。使用扫描电子显微镜（SEM）、X 射线能量色散光谱仪（EDS）、三维白光干涉仪和拉曼光谱检测了 PDC 在不同基础油下的摩擦和润滑机理。研究结果表明，用合成油 PAO 润滑时，PDC 的摩擦和磨损性能最好，其次是蓖麻油。石蜡油性能较差的原因是其粘度较低，导致能够钝化碳悬键的离子较少。因此，石蜡油的氧化稳定性不足，更容易受到油膜破坏的影响，最终导致摩擦和磨损特性不理想。总之，这项研究为工业应用提供了有价值的见解，有助于选择合适的基础油作为 PDC 切削工具的切削液，并提高 PDC 的摩擦和磨损特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.