Tribological Mechanism on the Grinding Interface of Nickel-base Superalloy under Minimum Quantity Lubrication with Ionic Liquid and Palm Oil Based Nanofluids

被引：0

作者：

Wang, Dexiang ^{[1
,2
]}

Zhang, Yu ^{[1
]}

Jiang, Jingliang ^{[1
]}

Liu, Xinfu ^{[1
]}

Liu, Guoliang ^{[1
]}

机构：

[1] School of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao

[2] Shandong Zhilian Community Bearing Technology Co., Ltd., Liaocheng

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2024年 / 60卷 / 19期

关键词：

grinding; ionic liquid; minimum quantity lubrication; nanofluid; nickel-based alloy; palm oil;

D O I：

10.3901/JME.2024.19.159

中图分类号：

学科分类号：

摘要：

To investigate the tribological mechanism on the grinding interface under minimum quantity lubrication (MQL) with ionic liquid and palm oil based nanofluids, nanofluids are prepared with [BMIM]BF4 ionic liquid and palm oil as base fluid, and with five kinds of nanoparticles. Grinding experiments are performed under dry, MQL and nanofluid MQL conditions. The MQL grinding performance of ionic liquid and palm oil based nanofluids is compared, and their tribological mechanism of anti-wear and friction-reducing on grain/workpiece grinding interface is further revealed. The results show that [BMIM]BF4 ionic liquid is more significant than palm oil in terms of reducing grinding force, the normal grinding force of [BMIM]BF4 ionic liquid is lower by more than 10% compared with palm oil. However, palm oil is more remarkable in the aspect of reducing grinding force ratio and surface roughness. Only physical adsorption film is formed on the grinding interface with palm oil, whereas both physical adsorption film and chemical reaction film are formed with [BMIM]BF4 ionic liquid. The chemical reaction film is rich in ferrous fluoride (FeF2), of which the shear strength is low. The lubricating performance of the nanoparticles can be sorted as follow: two-dimensional layer structure (graphene (GN), molybdenum dioxide (MoS2)) > three-dimensional spherical structure (aluminium oxide (Al2O3), copper (Cu)) > one-dimensional tubular structure (multiwalled carbon nanotube (MWCNT)). One-dimensional tubular MWCNT plays a role similar to rolling bearings only when its axis is perpendicular to grain moving direction. GN and MoS2 with two-dimensional layer structure play the role of anti-wear and friction-reducing through their interlayer shear effect. Al2O3 nanoparticle, possessing three-dimensional spherical structure and high-hardness, also play a role like rolling bearings, and take the effect of mechanical polishing. Cu nanoparticle, also possessing three-dimensional spherical structure but low-hardness, form a layer of solid lubricating film through a series of tribological behaviors such compression and spread. © 2024 Chinese Mechanical Engineering Society. All rights reserved.

引用

页码：159 / 171

页数：12

共 26 条

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