Tribology Letters最新文献_第2页

The Synergistic Effect of DLC Coating and Diketone/Nanocopper Hybrid Additive in Marine Engine Oil DLC涂层与二酮/纳米铜混合添加剂在船用发动机油中的协同作用

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-09 DOI: 10.1007/s11249-026-02130-3

Yuwen Xu, Yan Yang, Haonan Zeng, Jingsi Wang, Dan Jia, Tobias Amann, Chengqing Yuan, Ke Li

引用次数: 0

Sliding Onset of a Rigid Cylinder in Adhesive Contact with a Deformable Substrate 刚性圆柱体与可变形基板粘合接触时的滑动开始

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-07 DOI: 10.1007/s11249-026-02139-8

Jin-Shan He, Gan-Yun Huang

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A Multi-scale Interfacial Investigation of Organic Friction Modifiers in Hydrocarbon 有机摩擦改性剂在烃类中的多尺度界面研究。

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-06 DOI: 10.1007/s11249-026-02137-w

David Burgess, Peter J. Fryer, Ian McRobbie, Jacqueline Reid, Zhenyu Jason Zhang

{"title":"A Multi-scale Interfacial Investigation of Organic Friction Modifiers in Hydrocarbon","authors":"David Burgess, Peter J. Fryer, Ian McRobbie, Jacqueline Reid, Zhenyu Jason Zhang","doi":"10.1007/s11249-026-02137-w","DOIUrl":"10.1007/s11249-026-02137-w","url":null,"abstract":"<div><p>To link molecular characteristics and lubrication performance of Organic Friction Modifiers (OFMs), a multi-scale study was carried out to investigate the effects of functional groups and solvents on the tribological properties of two model OFMs, namely palmitic acid and pentadecylamine. It was observed that the solvent composition has a profound effect on the surface adsorption and the interfacial adhesion force of the OFMs, showing vastly different values of adsorption kinetics and surface coverage. It must be highlighted that the presence of water within the hydrocarbon has a considerable impact on the lubrication performance of OFMs. We were able to quantitatively correlate the molecular properties such as binding force and adsorption kinetics of the OFM with their macroscopic testing results satisfactorily, suggesting that the static Coefficient of Friction (COF) is governed by the properties of the film formed in a thermodynamic equilibrium, whilst the dynamic COF is related to the interfacial forces at the surface during sliding, and finally the wear on the solid surface is related to ability of the OFMs to rapidly re-adsorb on the solid substrate once removed.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13050767/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147631913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Transient Thermo-Elastohydrodynamic Response of a Rolling/Sliding Contact Traversing a Stationary Groove: A CFD-FSI Analysis 滚动/滑动接触穿过静止沟槽的瞬态热弹动力响应：CFD-FSI分析

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-06 DOI: 10.1007/s11249-026-02121-4

Peyman Havaej, Dieter Fauconnier

{"title":"Transient Thermo-Elastohydrodynamic Response of a Rolling/Sliding Contact Traversing a Stationary Groove: A CFD-FSI Analysis","authors":"Peyman Havaej, Dieter Fauconnier","doi":"10.1007/s11249-026-02121-4","DOIUrl":"10.1007/s11249-026-02121-4","url":null,"abstract":"<div><p>The transient response of a Thermo-Elastohydrodynamic Lubrication (TEHL) contact, comprising a stationary surface with a single groove traversed by a rolling/sliding counter-body, is analysed using Computational Fluid Dynamics coupled with a structural solver. The developed model resolves the transient thermo-mechanical behaviour of TEHL line contacts with surface irregularities, capturing the load fluctuations induced by the groove and providing detailed insight into the evolution of pressure, temperature, Von Mises stress, and film thickness. The influence of groove geometry (depth and width), system equivalent mass, and slide-roll ratio (SRR) on these quantities is examined. The results demonstrate that the passage of the groove amplifies shear heating at the inlet and induces significant pressure perturbations, leading to localised film thinning near the groove edges. Whilst increasing groove depth intensifies pressure spikes and stress concentrations, wider grooves attenuate these fluctuations by enhancing lubricant entrapment and facilitating a more gradual hydrodynamic pressure recovery. These effects are most pronounced under near-rolling conditions (low SRR). By contrast, variations in system equivalent mass were found to have a negligible influence on the local pressure and temperature perturbations associated with the passage of a single groove.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147642404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geometry-Driven Asymmetric Tribological Response in Laser-Patterned Cu Surfaces 激光图案铜表面几何驱动的非对称摩擦学响应

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-02 DOI: 10.1007/s11249-026-02136-x

Sebastian Suarez, Bruno Alderete, Fabian Bonner, Silas Schütz, Frank Mücklich

{"title":"Geometry-Driven Asymmetric Tribological Response in Laser-Patterned Cu Surfaces","authors":"Sebastian Suarez, Bruno Alderete, Fabian Bonner, Silas Schütz, Frank Mücklich","doi":"10.1007/s11249-026-02136-x","DOIUrl":"10.1007/s11249-026-02136-x","url":null,"abstract":"<div><p>This study investigates the fabrication of anisotropic saw-tooth topographies on copper surfaces using direct laser interference patterning (DLIP). By varying the structural periodicity (2, 7.5, and 10 µm) and manufacturing inclination angles (15, 30, and 45°), this work assesses the impact of periodic, deterministic surface topography on tribological performance. Linear reciprocating sliding tests against a hard ceramic counterbody demonstrated that these laser-patterned structures can successfully induce significant frictional anisotropy, while enduring 200 sliding cycles. A maximum frictional asymmetry coefficient of 77% was achieved for structures with a 7.5 µm periodicity manufactured at a 15° inclination angle. The results establish that maximizing asymmetry relies on generating shallower flank slopes; conversely, parameters producing steeper slopes resulted in similar friction coefficients regardless of sliding direction, minimizing the desired anisotropic effect. Regarding wear behavior, the grooves of the structured surfaces acted as effective reservoirs for worn material. Shallower manufacturing angles yielded deeper structures, which improved debris-retention capacity and maintained a mild wear regime by reducing the likelihood of three-body abrasion. The results showcase the ability to systematically tune the friction coefficient through laser-based surface modification techniques, highlighting the effects on friction and wear of deterministic asymmetrical geometries. The findings offer significant potential for applications such as sliding electrical connectors, where optimizing the ratio between insertion and retention forces is critical.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-026-02136-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147606914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding Wheel/Rail Interface Problems: The Unique Contributions and Legacy of Ken Johnson 理解车轮/轨道接口问题：肯·约翰逊的独特贡献和遗产

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-04-01 DOI: 10.1007/s11249-026-02126-z

Stuart L. Grassie

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Elucidation of the Low-Friction Mechanism in Sub-nanosecond Laser-Induced Amorphous Fe–C Layers Formed in Lubricating Oil 亚纳秒激光诱导非晶态Fe-C在润滑油中形成低摩擦机理的研究

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-03-31 DOI: 10.1007/s11249-026-02133-0

Xiaoxu Liu, Masato Yamanaka, Haruka Sasai, Satoru Maegawa, Shingo Ono, Fumihiro Itoigawa

{"title":"Elucidation of the Low-Friction Mechanism in Sub-nanosecond Laser-Induced Amorphous Fe–C Layers Formed in Lubricating Oil","authors":"Xiaoxu Liu, Masato Yamanaka, Haruka Sasai, Satoru Maegawa, Shingo Ono, Fumihiro Itoigawa","doi":"10.1007/s11249-026-02133-0","DOIUrl":"10.1007/s11249-026-02133-0","url":null,"abstract":"<div><p>To enable in situ, machining-compatible surface modification, sub-nanosecond laser irradiation in polyalphaolefin (PAO) oil was used to directly form amorphous Fe–C layers on medium-carbon steel. In this study, the structural and tribological characteristics associated with the resulting low-friction behavior are investigated. Laser irradiation in oil enables simultaneous carbon incorporation and liquid-confined ultra-fast quenching, producing a fully amorphous Fe–C-rich layer (~ 150–200 nm). Ball-on-disk tests show sustained low friction (<i>μ</i> ≈ 0.10–0.12) only under sufficiently developed irradiation within an intermediate pulse energy range around 500–650 μJ; lower energies yield fragile/discontinuous layers, whereas excessive energy (1000 μJ) promotes crystallization as the solidification path approaches the TTT nose. AFM lateral-force measurements reveal progressive microscale friction reduction upon repeated sliding, accompanied by indentation evidence of softening limited to the topmost ~ 5 nm. Raman spectroscopy and cross-sectional transmission electron microscopy further demonstrate friction-induced partial structural ordering and carbon enrichment within a thin surface zone (~ 5–10 nm), while the underlying layer remains fully amorphous. These results suggest that the observed low-friction behavior is closely associated with a hierarchical structure combining a load-bearing amorphous Fe–C base layer with a dynamically formed, shear-facilitating surface tribo-layer.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147607044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Electrical Conductance of Oxidized Rough Sphere Contacts: A Greenwood–Tripp-Based Model 氧化粗糙球触点的电导率：基于greenwood - tripp模型

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-03-29 DOI: 10.1007/s11249-026-02132-1

Vladislav A. Yastrebov

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Assessment of the Effect of Toothpaste Abrasiveness on Friction and Wear of Dental Fillings 牙膏研磨性对补牙材料摩擦磨损影响的评价

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-03-21 DOI: 10.1007/s11249-026-02128-x

Pavla Formánková, Veronika Pavliňáková, Pavel Čípek, Petr Svoboda, Alena Dančová, Lucy Vojtová, Martin Vrbka

{"title":"Assessment of the Effect of Toothpaste Abrasiveness on Friction and Wear of Dental Fillings","authors":"Pavla Formánková, Veronika Pavliňáková, Pavel Čípek, Petr Svoboda, Alena Dančová, Lucy Vojtová, Martin Vrbka","doi":"10.1007/s11249-026-02128-x","DOIUrl":"10.1007/s11249-026-02128-x","url":null,"abstract":"<div><p>There is a notable deficiency in detailed investigations regarding the impact of abrasive elements on the friction and wear of dental restorations. Therefore, the primary objective of this study was to analyse how abrasive particles in toothpastes affect the friction and wear of dental fillings. The coefficient of friction (CoF) was evaluated as a time course from a brushing simulation conducted on a UMT TriboLab tribometer, which measured frictional and normal forces over a duration of 260 min. The tribological system consisted of three components: a Curaprox Ultra Soft 5460 toothbrush, a sample of dental filling material, and a mixture of artificial saliva (AS) combined with selected toothpaste. Six different toothpastes were evaluated (four for adults and two for children), varying in relative dentin abrasivity (RDA) values. Measurements with AS served as reference data. Wear was quantified by topographical analysis using a Bruker Contour GT-X optical profilometer to assess the samples before and after brushing, followed by volume loss calculations. Particle morphology was studied using a Tescan MIRA3 microscope, and the element analysis of evaluated toothpastes was performed using energy-dispersive X-ray spectroscopy (EDX). Results indicated that friction was highly variable, influenced by the random presence of particles in contact. While wear and particle size generally increased with RDA value, this relationship was not entirely consistent. Finally, it was revealed that the aggregate size of pastes and their density also affected the friction and wear of the fillings.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-026-02128-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147560514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eco-Friendly Protic Ionic Liquids Water-Based Lubricant Additives Contributing to Green Tribology 环保型质子离子液体水基润滑剂添加剂促进绿色摩擦学

IF 3.3 3区工程技术

Tribology Letters Pub Date : 2026-03-18 DOI: 10.1007/s11249-026-02131-2

Jing Yang, Xiao Liu, Qiang Chen, Pingxia Guo, Kai Feng, Meirong Cai

{"title":"Eco-Friendly Protic Ionic Liquids Water-Based Lubricant Additives Contributing to Green Tribology","authors":"Jing Yang, Xiao Liu, Qiang Chen, Pingxia Guo, Kai Feng, Meirong Cai","doi":"10.1007/s11249-026-02131-2","DOIUrl":"10.1007/s11249-026-02131-2","url":null,"abstract":"<div><p>As global environmental standards grow increasingly strict, developing eco-friendly, high-efficiency water-based lubrication additives has become a pivotal focus in tribology. In this work, three novel heterocycle-, phosphorus-, and sulfur-free protic ionic liquids (PILs), namely EDG-HA, EDG-OA, and EDG-LA, were successfully synthesized and employed as additives in aqueous lubricant systems with the objective of alleviating the environmental contamination and biological toxicity problems related to conventional lubricant additives. A systematic evaluation of the PILs revealed that lubricants blended with the additives demonstrate significantly superior corrosion protection and lubricating performance when compared to pure water. Specifically, the 1% EDG-LA lubricating solution reduced the friction coefficient (COF) and wear volume (WV) by approximately 69.3% and 94.5%, respectively. By combining quartz crystal microbalance (QCM) adsorption tests and X-ray photoelectron spectroscopy (XPS) analysis, the lubrication mechanisms were clarified: PILs form robust physical adsorption and tribo-chemical reaction film on metal friction pairs, effectively preventing direct metal-to-metal contact. The current research promotes the development of water-soluble additives with potential eco-friendly and high-efficiency through a novel perspective.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"74 2","pages":""},"PeriodicalIF":3.3,"publicationDate":"2026-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147559951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0