Enhancing tribological performance of CBN materials by Fe3O4 nanofluid and wedge-shaped micro-texture considering electroosmosis effect

IF 6.1 1区工程技术 Q1 ENGINEERING, MECHANICAL Wear Pub Date : 2025-03-15 Epub Date: 2025-01-10 DOI:10.1016/j.wear.2025.205737

Haishan Li , Kedong Zhang , Yayun Liu , Tongshun Liu , Xuhong Guo , Youqiang Xing

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Abstract

Nanofluid as cooling and lubrication medium at the micro-textured contact interface is common. It is a promising approach to employ electroosmosis effect to improve the infiltration of nanofluid into the micro-textured interface, thereby enhancing the tribological performance. In this study, the effects of Fe₃O₄ nanofluids with different surfactant additions on the friction and wear performance of micro-textured specimens were investigated through ball-on-disc friction experiments under self-excited electric fields. Results showed that micro-textured specimens combined with 0.5 vol% sodium lauriminodipropionate (SLI) surfactant exhibited the lowest friction temperature, smallest average friction coefficient, and least ball wear. Moreover, CBN specimen wear was significantly reduced. Combining capillary electroosmosis experiments and tribological test results revealed the penetration mechanism of Fe₃O₄ nanofluids.

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利用Fe3O4纳米流体和考虑电渗透效应的楔形微结构增强CBN材料的摩擦学性能

纳米流体作为微织构接触界面的冷却和润滑介质是常见的。利用电渗透效应促进纳米流体向微织构界面的渗透，从而提高微织构界面的摩擦学性能是一种很有前景的方法。本研究通过自激电场作用下的球盘摩擦实验，研究了表面活性剂添加量不同的Fe3O4纳米流体对微织构试样摩擦磨损性能的影响。结果表明：添加0.5 vol%月桂氨基二丙酸钠（SLI）表面活性剂后，微织构试样的摩擦温度最低，平均摩擦系数最小，球磨损最小；此外，CBN试样磨损明显降低。结合毛细管电渗透实验和摩擦学测试结果，揭示了Fe3O4纳米流体的渗透机理。

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来源期刊

Wear 工程技术-材料科学：综合

CiteScore

8.80

自引率

8.00%

发文量

280

审稿时长

47 days

期刊介绍： Wear journal is dedicated to the advancement of basic and applied knowledge concerning the nature of wear of materials. Broadly, topics of interest range from development of fundamental understanding of the mechanisms of wear to innovative solutions to practical engineering problems. Authors of experimental studies are expected to comment on the repeatability of the data, and whenever possible, conduct multiple measurements under similar testing conditions. Further, Wear embraces the highest standards of professional ethics, and the detection of matching content, either in written or graphical form, from other publications by the current authors or by others, may result in rejection.