Synergistic Lubrication and Anti-Corrosion Effects of Benzotriazole and Ionic Liquid Under Current-Carrying Friction

IF 3.6 3区工程技术 Q2 ENGINEERING, MECHANICAL

Lubricants Pub Date : 2025-02-11 DOI:10.3390/lubricants13020077

Taiyu Su, Kun Peng, Duo Zhang, Luyi Sun, Yuxin Chen, Yiheng Yu, Ming Zhou

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引用次数: 2

Abstract

The corrosive nature of ionic liquids (ILs) limits their potential as high-performance conductive lubricants in practical engineering applications. This study systematically investigates the effects of benzotriazole (BTA) as a corrosion inhibitor on the lubricating performance of ILs at different concentrations and applied currents, along with the underlying mechanisms. In the 0.5–5 A current range, BTA effectively reduces friction, wear, and arc erosion damage to the friction surface. As the applied current increases, the BTA-Fe reaction film suppresses oxide formation, thereby reducing electrical contact resistance (ECR). Moreover, the effectiveness of BTA is concentration-dependent: at 0.5 A and a BTA concentration of 0.5 wt%, the coefficient of friction (COF) decreases by 16.5%, and wear volume is reduced by 53.4%. Friction testing and surface analysis show that the BTA-IL combination exhibits synergistic lubrication and anti-corrosion effects under current-carrying conditions, with varying wear and lubrication mechanisms depending on the applied current.

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苯并三唑与离子液体在载流摩擦下的协同润滑和防腐作用

离子液体的腐蚀性限制了其作为高性能导电润滑剂在实际工程应用中的潜力。本研究系统地研究了苯并三唑（BTA）作为缓蚀剂在不同浓度和施加电流下对il润滑性能的影响，以及潜在的机制。在0.5-5 A电流范围内，BTA有效地减少摩擦、磨损和对摩擦表面的电弧侵蚀损伤。随着施加电流的增加，BTA-Fe反应膜抑制氧化物的形成，从而降低电接触电阻（ECR）。此外，BTA的效果与浓度有关：在0.5 A和0.5 wt%的BTA浓度下，摩擦系数（COF）降低了16.5%，磨损体积减少了53.4%。摩擦测试和表面分析表明，BTA-IL组合在载流条件下表现出协同润滑和防腐效果，并根据施加的电流产生不同的磨损和润滑机制。

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

Lubricants Engineering-Mechanical Engineering

CiteScore

3.60

自引率

25.70%

发文量

293

审稿时长

11 weeks

期刊介绍： This journal is dedicated to the field of Tribology and closely related disciplines. This includes the fundamentals of the following topics: -Lubrication, comprising hydrostatics, hydrodynamics, elastohydrodynamics, mixed and boundary regimes of lubrication -Friction, comprising viscous shear, Newtonian and non-Newtonian traction, boundary friction -Wear, including adhesion, abrasion, tribo-corrosion, scuffing and scoring -Cavitation and erosion -Sub-surface stressing, fatigue spalling, pitting, micro-pitting -Contact Mechanics: elasticity, elasto-plasticity, adhesion, viscoelasticity, poroelasticity, coatings and solid lubricants, layered bonded and unbonded solids -Surface Science: topography, tribo-film formation, lubricant–surface combination, surface texturing, micro-hydrodynamics, micro-elastohydrodynamics -Rheology: Newtonian, non-Newtonian fluids, dilatants, pseudo-plastics, thixotropy, shear thinning -Physical chemistry of lubricants, boundary active species, adsorption, bonding