IF 6.1 1区工程技术

Wear Pub Date : 2025-09-10 DOI: 10.1016/j.wear.2025.206333

Ravisrini Jayasinghe , Maziar Ramezani

{"title":"AI-powered prediction of friction and wear in functionalized Epoxy-MWCNT composites","authors":"Ravisrini Jayasinghe , Maziar Ramezani","doi":"10.1016/j.wear.2025.206333","DOIUrl":"10.1016/j.wear.2025.206333","url":null,"abstract":"<div><div>This study investigates the self-lubricating properties of epoxy composites reinforced with multi-walled carbon nanotubes (MWCNTs) functionalized with carboxyl (COOH), amine (NH<sub>2</sub>), and silane coupling agents. Advanced artificial intelligence (AI) methods were employed to predict key tribological parameters coefficient of friction (COF) and wear rate as well as to classify wear mechanisms. Wear tests were conducted using a linear reciprocating tribometer under dry sliding conditions with a chromium steel ball as the counter surface. To simulate demanding conditions beyond typical industrial polymer bearings, sliding frequencies of 2, 5, and 8 Hz were applied under normal loads of 5, 10, and 15 N. The resulting data were analyzed using AI tools to identify patterns and predict tribological performance.</div><div>An Artificial Neural Network (ANN) was developed to model the relationships between COF, wear rate, experimental conditions, mechanical properties, and MWCNT composition, achieving high predictive accuracy (R<sup>2</sup> = 0.98 for COF; R<sup>2</sup> = 0.78 for wear rate). A Recurrent Neural Network (RNN) was used to capture the temporal evolution of COF under dominant wear mechanisms, including abrasion, adhesion, fatigue, and severe delamination. Additionally, a Convolutional Neural Network (CNN) accurately classified wear mechanisms from scanning electron microscopy (SEM) images. These AI-driven approaches provide a robust predictive framework for understanding and optimizing the tribological behavior of functionalized MWCNT-epoxy composites.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206333"},"PeriodicalIF":6.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Extraordinary solid lubrication performance achieved via the growth of multi-layered tribofilms facilitated by halloysite nanotubes 通过高岭土纳米管促进多层摩擦膜的生长，实现了非凡的固体润滑性能

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-10 DOI: 10.1016/j.wear.2025.206332

Yingying Han , Qingli Cheng , Guitao Li , Huimin Qi , Ga Zhang

引用次数: 0

Improved tribological performance of a-C:H/a-C:H:Si:O coated polyether ether ketone by introducing graded interfacial structure 通过引入梯度界面结构改善a-C:H/a-C:H:Si:O包覆聚醚醚酮的摩擦学性能

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-08 DOI: 10.1016/j.wear.2025.206326

Xianchun Jiang , Lingkang Meng , Peng Guo , Rende Chen , Zhenyu Wang , Hao Li , Kazuhito Nishimura , Aiying Wang , Peiling Ke

{"title":"Improved tribological performance of a-C:H/a-C:H:Si:O coated polyether ether ketone by introducing graded interfacial structure","authors":"Xianchun Jiang , Lingkang Meng , Peng Guo , Rende Chen , Zhenyu Wang , Hao Li , Kazuhito Nishimura , Aiying Wang , Peiling Ke","doi":"10.1016/j.wear.2025.206326","DOIUrl":"10.1016/j.wear.2025.206326","url":null,"abstract":"<div><div>Carbon-based coatings have been successfully utilized in aerospace, automobiles, and ocean exploration, as typical solid lubricants. Particularly, amorphous carbon coatings (a-C:H) have been employed on kinematic pairs of advanced equipment, such as polyether ether ketone (PEEK)/steel pair, for enhancing their wear resistance and solid lubricity. However, the significant disparity in mechanical properties between PEEK and a-C:H and the poor interface adhesion strength are the key factors that limit the further improvement of tribological performance. In this study, based on the gradient transition of composition and mechanical properties between PEEK and a-C:H, a-C:H/a-C:H:Si:O functionally graded coatings (FGCs) were fabricated on PEEK. The friction behavior of the a-C:H/a-C:H:Si:O FGCs coated PEEK sliding against 304 stainless steel was performed in dry atmosphere using a ball-on-plate reciprocating tribometer. Compared with the single-layer a-C:H and a-C:H:Si:O coated PEEK, the friction stability period of FGCs is extended by at least 33 %. When the thickness ratio of a-C:H/a-C:H:Si:O is 1/1, the wear rate of FGC is as low as 5.6 × 10<sup>−7</sup> mm<sup>3</sup>/Nm. The excellent tribological performances of FGCs can be attributed to the appropriate mechanical property transition and strong adhesion strength between the coatings and the PEEK. The finite element simulation results indicate that the FGCs can provide more excellent deformation resistance and can also significantly eliminate stress concentration. This work can provide basic theoretical guidance for preparing functionally graded amorphous carbon coatings on PEEK to achieve excellent tribological and wear performance.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206326"},"PeriodicalIF":6.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145046900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A novel grey-box approach to tool wear prediction using machine learning and finite element methods 一种利用机器学习和有限元方法进行刀具磨损预测的新灰盒方法

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-08 DOI: 10.1016/j.wear.2025.206330

Maximilian Berndt , Hagen Schmidt , Lars Müller , Eberhard Kerscher , Jörg Seewig , Benjamin Kirsch

{"title":"A novel grey-box approach to tool wear prediction using machine learning and finite element methods","authors":"Maximilian Berndt , Hagen Schmidt , Lars Müller , Eberhard Kerscher , Jörg Seewig , Benjamin Kirsch","doi":"10.1016/j.wear.2025.206330","DOIUrl":"10.1016/j.wear.2025.206330","url":null,"abstract":"<div><div>This study presents an innovative approach combining numerical simulations with experimental data to improve the accuracy of tool wear prediction. A hybrid modeling strategy is employed, integrating physics-based finite element method with data-driven machine learning techniques. Tool life experiments in turning operations were conducted, and a tool wear state-dependent finite element model was developed alongside an acoustic emission-based extreme gradient boosting regression model. Cutting forces calculated through the finite element model were integrated into the machine learning model to enhance predictive performance. The results show that incorporating simulated process data significantly improves wear prediction capabilities and accuracy compared to purely data-driven models. This demonstrates the potential of hybrid modeling approaches, so called grey-box, to bridge the gap between physical process understanding and machine learning predictions, minimizing the need for extensive experimental data collection. Furthermore, this approach reduces the dependency on expensive measurement technologies by substituting real measurement data with simulated data. By leveraging these advancements, this research contributes to the development of a robust and reliable tool wear prediction system, which not only improves manufacturing efficiency but also reduces operational costs in the future.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206330"},"PeriodicalIF":6.1,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145097286","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tribological behavior and dominant mechanisms of Al2O3 ceramic coatings paired with 316L, H62 and TC4 counterbodies Al2O3陶瓷涂层与316L、H62和TC4基体的摩擦学行为及优势机理

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-07 DOI: 10.1016/j.wear.2025.206317

Lili Dong , Yujie Zheng , Xiaoqin Zhao , Zhenyu Bu , Yiyang Wei , Yulong An , Huidi Zhou

{"title":"Tribological behavior and dominant mechanisms of Al2O3 ceramic coatings paired with 316L, H62 and TC4 counterbodies","authors":"Lili Dong , Yujie Zheng , Xiaoqin Zhao , Zhenyu Bu , Yiyang Wei , Yulong An , Huidi Zhou","doi":"10.1016/j.wear.2025.206317","DOIUrl":"10.1016/j.wear.2025.206317","url":null,"abstract":"<div><div>Al<sub>2</sub>O<sub>3</sub> ceramic coatings are widely used due to their excellent wear resistance, but comparative studies on the sliding wear mechanisms with typical metal pairing materials are rarely reported. In this study, the frictional behavior of Al<sub>2</sub>O<sub>3</sub> coatings against 316L stainless steel, H62 brass, and TC4 titanium alloy were systematically studied using a CSM friction tester. To study of the wear mechanism of different friction parts, a thoroughly comparative analysis was performed via scanning electron microscopy, high-resolution X-ray diffraction and multifunctional X-ray photoelectron spectroscope. The findings reveal significant differences in tribological performance across these friction pair systems. The crystal structure of the friction pair is the basis for determining the intrinsic tribological behavior of the material, the mechanical properties predominantly govern the distribution of contact stresses, while frictional heat induces interfacial chemical reactions that lead to the formation of a friction induced third body, collectively influencing the friction and wear behaviors of the pairs.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206317"},"PeriodicalIF":6.1,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

A comparative analysis of ladle furnace slag and electric arc furnace slag as abrasives in a friction material formulation: friction and particulate emission behaviour 钢包炉渣和电弧炉渣作为磨料在摩擦材料配方中的比较分析：摩擦和颗粒排放行为

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-03 DOI: 10.1016/j.wear.2025.206311

Domenico Antonio Rita , Ana Paula Gomes Nogueira , Cosmo de Cecca , Giovanni Straffelini

{"title":"A comparative analysis of ladle furnace slag and electric arc furnace slag as abrasives in a friction material formulation: friction and particulate emission behaviour","authors":"Domenico Antonio Rita , Ana Paula Gomes Nogueira , Cosmo de Cecca , Giovanni Straffelini","doi":"10.1016/j.wear.2025.206311","DOIUrl":"10.1016/j.wear.2025.206311","url":null,"abstract":"<div><div>In this study, three friction materials were analyzed to evaluate the tribological behavior of novel, sustainable abrasives derived from steelmaking slags. A reference formulation containing alumina was compared with two alternative formulations incorporating Electric Arc Furnace (EAF) and Ladle Furnace (LF) slags. Tribological tests assessed friction stability, wear, and particulate emissions, while detailed characterization of worn surfaces and cross-sections provided insight into wear mechanisms.</div><div>All materials formed secondary plateaus mainly composed of compacted iron oxides, as common in systems employing cast iron disc counterfaces. While all abrasives contributed to the generation of Fe-rich wear debris, EAF slag particles showed superior performance due to their ability to fragment and integrate into the friction layer, enhancing its compactness and reducing wear and emissions. LF slag particles, in contrast, did not fragment and failed to bond effectively with the friction layer.</div><div>The results highlight the potential of EAF slag as an effective, eco-friendly abrasive in brake pads. Further validation under realistic conditions is recommended through inertia dynamometer testing.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206311"},"PeriodicalIF":6.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Tribocorrosion behaviour of CoCrMo in simulated body fluid with applied potential CoCrMo在模拟体液中的摩擦腐蚀行为

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-03 DOI: 10.1016/j.wear.2025.206308

J. Qi, W.M. Rainforth

{"title":"Tribocorrosion behaviour of CoCrMo in simulated body fluid with applied potential","authors":"J. Qi, W.M. Rainforth","doi":"10.1016/j.wear.2025.206308","DOIUrl":"10.1016/j.wear.2025.206308","url":null,"abstract":"<div><div>CoCrMo alloys have been widely used as implant materials due to their excellent combination of mechanical strength, corrosion resistance and biocompatibility. However, the release of wear debris during service can trigger inflammatory responses in peri-implant tissues, while reactive oxygen species (ROS) generated by the immune response to bacterial infections may alter surface chemistry and wear behaviour. The formation of tribofilms and the accompanying microstructural changes of CoCrMo under electrochemically controlled conditions are not yet fully understood. In particular, the correlation between applied electrochemical potential, tribofilm formation and subsurface microstructural evolution remains unclear.</div><div>In this study, we present a detailed investigation of surface microstructural and chemical changes during tribocorrosion tests under different applied potentials, with particular attention to tribofilm formation and surface deformation. Quantitative analysis of surface deformation was performed by measuring the geometrically necessary dislocation (GND) density mapped using precession electron diffraction (PED). A clear correlation between wear rate and surface strain was established. However, the relationship between tribofilm formation, surface strain and the applied potential was more complex.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206308"},"PeriodicalIF":6.1,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Effect of electrochemical potential on the tribocorrosion behavior of 316L stainless steel in sulfuric acid at different concentrations 电化学电位对316L不锈钢在不同浓度硫酸中摩擦腐蚀行为的影响

IF 6.1 1区工程技术

Wear Pub Date : 2025-09-01 DOI: 10.1016/j.wear.2025.206300

Shoufan Cao , Jinyu Li , Zhanpeng Yang , Shanliang Chen

{"title":"Effect of electrochemical potential on the tribocorrosion behavior of 316L stainless steel in sulfuric acid at different concentrations","authors":"Shoufan Cao , Jinyu Li , Zhanpeng Yang , Shanliang Chen","doi":"10.1016/j.wear.2025.206300","DOIUrl":"10.1016/j.wear.2025.206300","url":null,"abstract":"<div><div>The tribocorrosion degradation of 316L stainless steel components critically impacts the operational reliability and service longevity of chemical reactors and food processing machinery. While the tribocorrosion behavior of 316L stainless steel in neutral and alkaline media has been extensively studied, systematic investigations in acidic environments, particularly addressing the coupled effects of electrochemical potential and solution acidity, remain limited. Thus, this study comprehensively investigated the tribocorrosion behavior of 316L stainless steel in H<sub>2</sub>SO<sub>4</sub> solutions under different electrochemical potentials at varying pH levels. Surface topographical and chemical analyses were adopted to evaluate the wear loss and understand the tribocorrosion mechanism. The results showed that not only chemical wear, but also the mechanical wear was markedly affected by the applied electrochemical potential. In addition, the variation of chemical and mechanical wear with passive potential showed strong dependence on the solution pH. A tribocorrosion mechanism that considers passive film thickness and selective dissolution of Fe oxide/hydroxide was proposed, which successfully explained the comprehensive influence of electrochemical potential and solution pH. These findings provide critical insights for material selection and tribocorrosion protection strategies of stainless steels used in acidic industrial environments.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"582 ","pages":"Article 206300"},"PeriodicalIF":6.1,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145011249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

The effect of disc surface hardness on the tribology and emission behaviors of brake materials 制动盘表面硬度对制动材料摩擦学和发射性能的影响

IF 6.1 1区工程技术

Wear Pub Date : 2025-08-30 DOI: 10.1016/j.wear.2025.206316

L. Wei , H.Y. Zhang , X.Y. Wang , J.Y. Gai , Y.S. Choy

引用次数: 0

Evolution of interface states and stick-slip mechanism of lightweight friction pairs with varying braking pressures 不同制动压力下轻量化摩擦副界面状态演化及粘滑机理

IF 6.1 1区工程技术

Wear Pub Date : 2025-08-30 DOI: 10.1016/j.wear.2025.206315

Manqiang Liu , Zhiwei Wang , Jiliang Mo , Jinjie Hu , Yuning Zan , Song Zhu , Guozhong Jin

{"title":"Evolution of interface states and stick-slip mechanism of lightweight friction pairs with varying braking pressures","authors":"Manqiang Liu , Zhiwei Wang , Jiliang Mo , Jinjie Hu , Yuning Zan , Song Zhu , Guozhong Jin","doi":"10.1016/j.wear.2025.206315","DOIUrl":"10.1016/j.wear.2025.206315","url":null,"abstract":"<div><div>Stick-slip vibration in lightweight friction pairs used in urban rail trains significantly degrades braking performance. Brake pressure, a key factor influencing stick-slip vibration, has an unclear mechanism of action. This study reproduced stick-slip phenomena through braking pressure gradient tests (0.25–0.75 MPa) and established relationships among braking pressure, friction interface states, and stick-slip vibrations. The evolution of stick-slip behavior governed by braking pressure was systematically investigated. Results show that the stick-slip amplitude increases significantly as braking pressure rises from 0.25 MPa to 0.50 MPa. This increase is attributed to the formation of stable tribofilms and oxide layers on the friction interface, reduced surface roughness, and increased variability in contact plateaus, which together enhance both tangential and normal stiffness. Conversely, within the 0.50–0.75 MPa range, further increases in pressure damage the tribolayer's structural integrity, producing flaky wear debris that accumulates on the contact surface. These changes reduce contact stiffness between the brake disc and pad, diminishing stick-slip amplitude. Overall, stick-slip amplitude shows a non-monotonic variation with braking pressure, with an enhancement phase driven by interfacial strengthening and an attenuation phase caused by tribolayer degradation. This study provides a theoretical basis for the tribological behavior and stick-slip vibrations of lightweight friction pairs under varying braking pressures and offers guidance for optimizing pressure parameters to mitigate stick-slip vibrations in urban rail transit systems.</div></div>","PeriodicalId":23970,"journal":{"name":"Wear","volume":"580 ","pages":"Article 206315"},"PeriodicalIF":6.1,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144923058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Wear最新文献