Tribology Letters最新文献

{"title":"Effect of Alternating Magnetic Fields on the Tribological Behaviors of Steel/Steel Contact Under Dry Sliding Conditions","authors":"Xiaojian Yu,&nbsp;Qiangqiang Zhang,&nbsp;Chuan Li,&nbsp;Xueyan Xu,&nbsp;Zhiquan Yang,&nbsp;Xianguo Hu","doi":"10.1007/s11249-025-02003-1","DOIUrl":"10.1007/s11249-025-02003-1","url":null,"abstract":"<div><p>With the increasing modernization of machinery, more and more friction parts are exposed to alternating electromagnetic fields. To investigate the impact of alternating electromagnetic fields on the tribological behavior of key components, a Helmholtz coil was incorporated into the ball/disc reciprocating friction tester as the source of the alternating electromagnetic fields. Then, the effect of alternating electromagnetic fields on the tribological behavior of the self-mating pair of GCr15 bearing steel was investigated in detail. The results showed both the coefficient of friction and wear volume increased significantly in the presence of an alternating electromagnetic fields. The underlying mechanism was explored by analyzing the changes in surface temperature, the morphology and chemical composition of the wear surface and wear debris, combined with electromagnetic fields simulations of wear debris.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879608","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}

{"title":"Thin Film-Formation Mechanisms of Aqueous Lubricant in Elastohydrodynamic Lubrication","authors":"Ashley Mungroo,&nbsp;Denis Mazuyer,&nbsp;Juliette Cayer-Barrioz","doi":"10.1007/s11249-025-01998-x","DOIUrl":"10.1007/s11249-025-01998-x","url":null,"abstract":"<div><p>Aqueous lubricants are increasingly used in industry due to their excellent cooling capability and to environmental considerations. However, the film forming mechanisms in high-pressure contacts, such as in EHL regime, differ from those, well-known, of classical piezoviscous oil lubricants. This work investigated the role of the molecular architecture of polyalkylene glycol (PAG) molecules dispersed in water, with co-solvent monopropylene glycol, on the film forming capability in elastohydrodynamic lubrication regime by means of <i>in situ in-operando</i> chemical distribution mapping of the contact. These mappings were based on infrared hyperspectral images. A specific focus was made on the analysis of the area absorbance ratio of the ether stretching band, characteristic of PAG polymer, and the O–H stretching band of continuous water media, in order to identify the relative contribution of the solvent and of the polymer additives. Linear and branched PAG molecules were used as well as mixtures of different molecular weight PAGs. The penetration capability of the polymers in the high-pressure zone of the contact under pure rolling conditions, was discussed in terms of molar mass, architecture and polarity.</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":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-025-01998-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877701","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}

{"title":"Friction and Tactile Sensation of Index Finger Skin on Textured Glass Surfaces During Swipe Motion","authors":"Yoshitaka Nakanishi,&nbsp;Naoki Fujita,&nbsp;Kazushi Miyamoto,&nbsp;Daiki Morimoto,&nbsp;Ryo Suzuki","doi":"10.1007/s11249-025-01997-y","DOIUrl":"10.1007/s11249-025-01997-y","url":null,"abstract":"<div><p>Sensory evaluation techniques have been used to investigate rich tactile sensations experienced by humans. Sensory evaluations typically incorporate quantitative measurement methods that rely on the subjective judgment of participants to assess tactile sensations. Although the relation between friction coefficient, skin surface and fingertip, contact surface, and the effect on tactile perception for various materials and textures is a critical topic of research, such underlying mechanisms are yet to be understood comprehensively. In this study, the frictional properties and tactile sensations of the human index finger on textured glass surfaces were investigated during swipe motions. Friction tests were conducted using a six-axis force sensor to measure the coefficient of friction (CoF) across textured and flat glass surfaces. Surface texturing reduced the CoF by decreasing the real contact area. Furthermore, the sliding direction of the finger influenced the CoF. Using the semantic differential method, sensory evaluations revealed higher tactile scores for the textured glass surfaces regarding smoothness, lightness, and silkiness than those for flat surfaces. The findings demonstrated a strong correlation between frictional behaviour and tactile sensations, providing insights for designing textured glass in touch-based applications.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-025-01997-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143856545","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}

{"title":"Tribological Characteristics of Laser Multi-scale Composite Textures for YT-15 Cemented Carbide Surface","authors":"Xinru Zhu,&nbsp;Xuefeng Yang,&nbsp;Antao Zhao,&nbsp;Xinming Cheng,&nbsp;Qilin Zhang,&nbsp;Deyu Liu","doi":"10.1007/s11249-025-01996-z","DOIUrl":"10.1007/s11249-025-01996-z","url":null,"abstract":"<div><p>During the turning operation with cemented carbide tools, plastic deformation of the workpiece, along with intense friction between the tool and the chip, inevitably induces tool wear. The rational implementation of surface texture technology on the tool surface can enhance the machining quality of the workpiece surface and significantly extend the tool’s service life. In this study, laser processing technology was employed to fabricate single textures and multi-scale composite textures featuring circular, elliptical, and V-shaped patterns on the surface of YT-15 cemented carbide. Friction and wear experiments were conducted to investigate the effects of various shapes, arrangements, and combinations on the friction properties of textured surfaces under dry friction and oil lubrication conditions. The results indicate that compared to the non-textured surface, the textured surface exhibits a lower and more stable friction coefficient. Additionally, surface texturing mitigates wear by trapping materials such as wear debris. The circular texture with a staggered arrangement among single textures demonstrates the most effective friction-reducing performance. Furthermore, multi-scale composite textures, through the reasonable combination of different texture shapes, enhance the synergistic effect, leading to improved friction reduction and lubrication performance.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840489","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}

{"title":"Toward Cost-Effective Environmentally Acceptable Lubricants: Influence of Synthetic Ester and Low-Viscosity Polyalphaolefin Blend Type on Additive Performance","authors":"K. Ademi,&nbsp;W. Wijanarko,&nbsp;N. Espallargas","doi":"10.1007/s11249-025-01991-4","DOIUrl":"10.1007/s11249-025-01991-4","url":null,"abstract":"<div><p>The pressing need to develop reliable and cost-effective Environmentally Acceptable Lubricants (EALs) is a challenge to the entire lubrication field in academia and industry. In this work, we propose blending low-viscosity polyalpholefins (PAOs) and synthetic esters as base fluids, as a strategy to formulate cost-effective EALs. Pentaerythritol polyol ester (PEPE) and 2-ethylhexyl palmitate (2-EHP) are the synthetic esters chosen. Tributyl(ethyl)phosphonium diethyl phosphate (PEP) ionic liquid, dialkyl dithiophosphate (DDP), and alkoxylated long chain ether phosphate (AEP) have been chosen as lubricant additives. Two reference lubricant additives were also tested for comparison, i.e., hexadecanoic acid (palmitic acid, C16) as friction modifier, and primary zinc dialkyl dithiophosphate (ZDDP) as anti-wear additive. Stainless steel AISI 316L disks were tested against alumina balls using a ball-on-disk tribometer to evaluate the performance of the formulated lubricants. All additives improved the performance of plain PAO, while in the case of esters competition with the additives was observed due to their high polarity. The blends performed better than the lubricants with a single base fluid. ToF–SIMS studies showed richer sulfur and phosphorus-based tribofilms for those samples lubricated with blends than with single base fluids. The blends also helped improving the solubility of the ionic additives with respect to plain PAO. Overall, the results confirmed the better performance of blends as a strategy for formulating cost-effective EALs and for improving the solubility of ionic liquids in non-polar base fluids.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-025-01991-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840490","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}

{"title":"A New MRCAHE Method for Wear Particle Image Enhancement Based on Improved Online Optical Microfluidic Sensor","authors":"Zhenzhen Liu,&nbsp;Jingrui Wang,&nbsp;Yan Liu,&nbsp;Hongfu Zuo,&nbsp;Xin Li,&nbsp;Jiale Miao,&nbsp;Xiaolei Hu","doi":"10.1007/s11249-025-01994-1","DOIUrl":"10.1007/s11249-025-01994-1","url":null,"abstract":"<div><p>As direct byproducts of frictional interactions between contacting surfaces, oil wear particles exhibit varied physical properties that provide essential insights into the underlying wear mechanisms and degree of wear severity. Current online optical microfluidic monitoring sensors demonstrate inadequate imaging quality, especially in ferrograph sensors, where particles frequently form chains, hindering real-time monitoring. To address this challenge, an integrated optimization approach has been developed, emphasizing two key aspects: the structural redesign of the online optical sensor and the enhancement of wear particles imaging. We develop a high-precision optical monitoring sensor, which facilitates both conventional particle counting and size detection, as well as the extraction of high-definition texture images of particles in real time. Initially, as the scattering accounts for the majority of the total light energy attenuated, we compute the light intensity scattered by particles in oil. The influence of particle size, scattering angle, particle type, and incident light wavelength on scattering intensity is analyzed, establishing the basis for improving the image quality of wear particles. Then, to alleviate the substantial image degradation induced by oil, characterized by diminished contrast, color attenuation, blurring, and indistinct features, we propose a hybrid image enhancement method MRCAHE, which integrates Multi-scale Retinex with Color Restoration (MSRCR) and Contrast-Limited Adaptive Histogram Equalization (CLAHE). The sensor’s performance is ultimately validated on a high-speed, heavy-load gear fault simulation test bench. Experimental results demonstrate that the sensor consistently collects distinct images of wear particles, and the MRCAHE enhancement method significantly improves deblurring, texture extraction, color restoration, and sharpness. This portable oil wear particle monitoring sensor provides a robust technical foundation for condition monitoring, fault diagnosis, and intelligent maintenance of rotating machinery.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824590","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}

{"title":"Finite Element Simulation Method for Fretting Wear Considering Double-Side Wear Behavior","authors":"Yifan Song,&nbsp;Pei Yan,&nbsp;Wenxiang Zhao,&nbsp;Tingwei Sha,&nbsp;Zhicheng Dai,&nbsp;Siyu Li,&nbsp;Huiqing Gu,&nbsp;Xibin Wang","doi":"10.1007/s11249-025-01992-3","DOIUrl":"10.1007/s11249-025-01992-3","url":null,"abstract":"<div><p>Fretting-wear-induced failure of contacting surfaces threatens the safety of assemblies, which means the wear behavior on both contacting surfaces should be fully considered. In this paper, a finite element simulation method was proposed to reveal fretting wear behavior, which simultaneously considered double-side wear of both contacting surfaces. The user subroutine UMESHMOTION based on Archard’s equation was used to describe the fretting wear behavior. The finite element model was tested and validated using results obtained from cylinder-on-flat tangential fretting wear tests conducted under varying fretting amplitudes. The topography and cross-sectional profile characteristics of fretting scar were compared. The dynamic wear behaviors and fretting regime were analyzed from the tangential force–displacement curves and the ratio of shear stress to contact pressure. Besides, the variation of wear volume with fretting cycles was also analyzed. The results obtained from model considering double-side wear shown a better agreement with the experimental results compared to those from model considering single-side wear.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821923","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}

{"title":"Some Remarks on a Recent Wear Theory","authors":"M. Ciavarella","doi":"10.1007/s11249-025-01984-3","DOIUrl":"10.1007/s11249-025-01984-3","url":null,"abstract":"<div><p>Persson et al. in (Rubber wear: experiment and theory. arXiv:2411.07332, 2024) and Xu and Persson in (Sliding wear: role of plasticity. arXiv: abs/2412.13129, 2024) have recently proposed an interesting theory of wear which is based on particle formation due to fatigue crack growth at different scales of roughness. The theory perhaps is the first one to take into account of a full characterization of the roughness, and obtains semi-quantitative prediction of wear coefficients for rubber and PMMA, but in the original form, many details of actual roughness features and the material properties do not permit to elucidate general simple trends. We attempt to make general comments to show the main effects of the various macroscopic parameters in the theory, with qualitative comparisons having in mind the case of metals wear for which we found experimental trends, at least for the dependence on friction coefficient. It is found that wear rate in the elastic theory very strongly depends on friction coefficient and on rms roughness, showing even a regime of wearless behaviour below friction coefficient of about 0.2—which may indicate transition to other mechanisms, like adhesive wear. It is shown that an elasto-plastic theory probably mitigates these effects, as a fully plastic one depends only quadratically on friction coefficient, and has no dependence at all on any feature of roughness. However, the present oversimplistic perfectly plastic model truncating the elastic prediction, and the use of a crack propagation theory which is irrespective of large plastic flow can make the theory more hardly quantitative in general. In addition, hardness at asperity scale may increase due to size effect, so the elastic model may be the most appropriate choice in many cases. Along with many other complex effects known in wear (even limiting attention to fatigue wear), it remains, therefore, to be investigated how generally the Persson theory can result in quantitative predictions.</p></div>","PeriodicalId":806,"journal":{"name":"Tribology Letters","volume":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-025-01984-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778148","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}

{"title":"Dislocation Slip and Damage Evolution Behavior in the Dent-Induced Pitting Process of M50 Bearing Steel","authors":"Wanjia Li,&nbsp;Xiangxu Meng,&nbsp;Yanwei Zheng,&nbsp;Jinbao Huang,&nbsp;Tingjian Wang,&nbsp;Le Gu,&nbsp;Liqin Wang,&nbsp;Chuanwei Zhang","doi":"10.1007/s11249-025-01985-2","DOIUrl":"10.1007/s11249-025-01985-2","url":null,"abstract":"<div><p>Pitting is a typical failure behavior in rolling contact fatigue. Generally, there are two different pitting cases. One is the corrosion-induced pitting, and the other is the dent-induced pitting. This study focused on the dent-induced pitting. The surface dent is caused by the particle compression on the ring surface. During the compression process, grain distribution affects the dent geometry and the damage evolution behavior. However, researchers have almost ignored the effects of grain distribution on surface defect-induced RCF. Therefore, the authors proposed a crystal plasticity continuum damage method (CP-CDM) model by combining crystal plasticity constitutive equations with continuum damage equations to study the grain distribution effects on the damage evolution of the surface defect-induced RCF. The results show that the proposed model can simulate the crack propagation characteristics of the RCF. Grain distribution has effects on the damage propagation behavior randomly. However, the lead cracks have little difference for different grain distribution microstructures. The damage evolution behavior of pitting is affected by the interaction between stress concentration from the shoulder and the crack tip and strain localization from the grain boundaries. Moreover, the cracks in the surface pitting and the subsurface spalling evolve simultaneously.</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":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749032","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}

{"title":"Tribofilm Formation by Fe3O4 Nanoparticles as Lubricant Additives: Microscopic Insights into Growth Conditions and Mechanisms","authors":"Longji Guo,&nbsp;Yanan Yin,&nbsp;Lina Gao,&nbsp;Hao Lin,&nbsp;Yuzhen Liu,&nbsp;Kai Le,&nbsp;Xu Zhao,&nbsp;Xu Chen,&nbsp;Shusheng Xu","doi":"10.1007/s11249-025-01988-z","DOIUrl":"10.1007/s11249-025-01988-z","url":null,"abstract":"<div><p>Current research concerning Fe₃O₄ nanoparticles (NPs) as lubricant additives primarily focuses on the macroscale tribological performance, with insufficient exploration of anti-wear mechanisms at the microscopic scale. In this study, the formation and growth behavior of Fe₃O₄-based tribofilms was investigated. Oleic acid-modified Fe₃O₄ NPs dispersed in a polyalphaolefin base oil were tested between ZrO₂ balls and GCr15 steel substrates utilizing a reciprocating micro-tribometer. The morphology, microstructure, and chemical composition of tribofilms were meticulously characterized. Results revealed that the tribofilm primarily consisted of cubic Fe₃O₄ nanocrystals, consistent with initial particles. The organic modification layers of NPs were removed, facilitating direct inter-particle bonding. Growth mechanisms of tribofilms involving tribosintering of Fe₃O₄ NPs and shear-induced removal were proposed, demonstrating strong dependence on sliding cycles and contact pressure. Under an initial contact pressure of 1.15 GPa, the volume of the tribofilm increased with the number of sliding cycles, eventually reaching a state of saturation. While stress-dependent growth was observed, excessive stress led to wear on the substrate.</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":"73 2","pages":""},"PeriodicalIF":2.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11249-025-01988-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706947","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}