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Increasing friction of tread rubber under lubrication by adjusting groove shape to control fluid flow
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-13 DOI: 10.1016/j.triboint.2025.110531
Arata Ishizako , Toshiaki Nishi , Takeshi Yamaguchi
{"title":"Increasing friction of tread rubber under lubrication by adjusting groove shape to control fluid flow","authors":"Arata Ishizako ,&nbsp;Toshiaki Nishi ,&nbsp;Takeshi Yamaguchi","doi":"10.1016/j.triboint.2025.110531","DOIUrl":"10.1016/j.triboint.2025.110531","url":null,"abstract":"<div><div>This study aimed to develop a high-friction tread design by utilizing fluid flow. Inclined-groove tread rubber specimens designed to generate negative fluid pressure were prepared and friction tests under glycerol lubrication were conducted. The results showed that the inclined-groove specimens generated negative fluid pressure and achieved a higher friction coefficient than did the rectangular-groove specimen. The results also indicated that a tread block with an inclined-groove shape with a small groove depth is desirable for achieving high adsorption force and friction, and for a given adsorption force, a tread block with a large convex plateau region is desirable. Our research showed that when the groove shape was controlled, the fluid flow could be adjusted to increase the tread rubber friction.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"205 ","pages":"Article 110531"},"PeriodicalIF":6.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Ultralow friction of glycerol and its emulsion with oleic acid in a steel elastohydrodynamic contact at 40 °C and 100 °C
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-13 DOI: 10.1016/j.triboint.2025.110527
D.F. Silva-Alvarez , I. Dominguez-Lopez , M.A. Vidales-Hurtado , C. Gutierrez-Antonio , K.A. Flores-Garay , A.L. Garcia-Garcia
{"title":"Ultralow friction of glycerol and its emulsion with oleic acid in a steel elastohydrodynamic contact at 40 °C and 100 °C","authors":"D.F. Silva-Alvarez ,&nbsp;I. Dominguez-Lopez ,&nbsp;M.A. Vidales-Hurtado ,&nbsp;C. Gutierrez-Antonio ,&nbsp;K.A. Flores-Garay ,&nbsp;A.L. Garcia-Garcia","doi":"10.1016/j.triboint.2025.110527","DOIUrl":"10.1016/j.triboint.2025.110527","url":null,"abstract":"<div><div>Glycerol is an abundant, inexpensive, biodegradable substance that is environmentally safe and has low potential for bioaccumulation. We evaluated its tribological performance, neat and emulsified with 4 %wt of oleic acid, using friction maps encompassing surface kinematics typical of mechanical devices such as roller bearings, camshafts, and gears. We set the maximum Hertz contact pressure around 1.0 GPa to achieve the elastohydrodynamic lubrication regime in a ball-on-disk apparatus. The entrainment speed ranged from 0.1 to 2.0 m/s, and the slide-to-roll ratio between 10 % and 30 %. The measurements were made at 40 °C and 100 °C. Under these conditions, extensive portions of the friction maps showed ultralow friction (≤ 0.01). The regression models developed are consistent with lubrication mechanisms accepted for similar tribosystems and exhibit a coefficient of determination R<sup>2</sup> better than 90 %.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110527"},"PeriodicalIF":6.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158650","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
Bi-directional evolution of graphenic vacancy structure in oxygen plasma treatment
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-13 DOI: 10.1016/j.triboint.2025.110529
Yinong Chen , Shuyu Fan , Shu Xiao , Hu Zhang , Yi Wu , Jing Wu , Guoliang Tang , Fenghua Su , Paul K. Chu
{"title":"Bi-directional evolution of graphenic vacancy structure in oxygen plasma treatment","authors":"Yinong Chen ,&nbsp;Shuyu Fan ,&nbsp;Shu Xiao ,&nbsp;Hu Zhang ,&nbsp;Yi Wu ,&nbsp;Jing Wu ,&nbsp;Guoliang Tang ,&nbsp;Fenghua Su ,&nbsp;Paul K. Chu","doi":"10.1016/j.triboint.2025.110529","DOIUrl":"10.1016/j.triboint.2025.110529","url":null,"abstract":"<div><div>The phenomenon of friction increase in graphenic materials during prolonged treatment in an oxygen plasma environment has been widely recognized. In this study, we report a possible oxidation state that leads to decreased friction during oxygen plasma treatment of graphenic materials through molecular simulations. We also propose a simple, clean, and efficient method to control the reverse structural evolution for controlled oxidation. Experimental applications demonstrated a 30.6 % reduction in friction and a 130.1 % increase in friction for short and long oxygen plasma treatments, respectively, compared to the initial graphenic vacancy structure. These findings contribute to an increased understanding of the response and modulation of graphenic coatings in oxygen plasma environments.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110529"},"PeriodicalIF":6.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158649","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
Voltage regulation of atomic-scale energy dissipation at niobium diselenide electro-friction interface
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-13 DOI: 10.1016/j.triboint.2025.110534
Peng Wang , Biquan Su , Xinchen Gao , Weishan Yan , Ruichao Wang , Wangle Xue , Hongli Li , Nong Wang , Zhenbin Gong
{"title":"Voltage regulation of atomic-scale energy dissipation at niobium diselenide electro-friction interface","authors":"Peng Wang ,&nbsp;Biquan Su ,&nbsp;Xinchen Gao ,&nbsp;Weishan Yan ,&nbsp;Ruichao Wang ,&nbsp;Wangle Xue ,&nbsp;Hongli Li ,&nbsp;Nong Wang ,&nbsp;Zhenbin Gong","doi":"10.1016/j.triboint.2025.110534","DOIUrl":"10.1016/j.triboint.2025.110534","url":null,"abstract":"<div><div>In this study, we investigated the friction mechanisms behind the observed changes in friction of niobium diselenide (NbSe<sub>2</sub>) thin films under varying normal bias voltages. The results show that both the friction force and coefficient of friction (COF) increase with the application of positive and negative bias voltages. These friction changes are significantly affected by the electrostatic force on the sample surface and the electronic excitation during friction leads to energy dissipation, ultimately increasing friction. These findings not only increase our understanding of the interfacial friction phenomenon of nano-electric friction, but also help to control energy dissipation of sliding nanofriction, making electronic control of friction possible.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110534"},"PeriodicalIF":6.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158606","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
Investigation of skidding characteristics of high-speed cylindrical roller bearings based on the improved ADORE model with thermal analysis and lubricant distribution
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-10 DOI: 10.1016/j.triboint.2025.110523
Jiaming Zhang , Ming Qiu , Yanfang Dong , Chuanmeng Yang
{"title":"Investigation of skidding characteristics of high-speed cylindrical roller bearings based on the improved ADORE model with thermal analysis and lubricant distribution","authors":"Jiaming Zhang ,&nbsp;Ming Qiu ,&nbsp;Yanfang Dong ,&nbsp;Chuanmeng Yang","doi":"10.1016/j.triboint.2025.110523","DOIUrl":"10.1016/j.triboint.2025.110523","url":null,"abstract":"<div><div>The research focuses on the issue of excessive skidding for cylindrical roller bearings. The oversimplified thermal analysis module of the rolling bearing dynamics analysis software ADORE was improved with the thermal resistance network method and lubricant distribution. Based on the improved ADORE, the variation mechanism of skidding and the critical radial load for skidding of cylindrical roller bearings were analyzed. The findings indicate that the slip rate and the sliding velocity decreases exponentially with increasing radial load, and 5 % is chosen as the evaluation criterion for the degree of skidding. A method for calculating the critical radial load for skidding of NU-type bearings is proposed, which has reference value for the design of cylindrical roller bearings with low slip rates.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110523"},"PeriodicalIF":6.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158651","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
Dissipation wear model under mixed lubrication based on entropy imbalance phenomenon
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-10 DOI: 10.1016/j.triboint.2025.110521
Hongju Li, Ying Liu, Haoran Liao, Zhurong Liang
{"title":"Dissipation wear model under mixed lubrication based on entropy imbalance phenomenon","authors":"Hongju Li,&nbsp;Ying Liu,&nbsp;Haoran Liao,&nbsp;Zhurong Liang","doi":"10.1016/j.triboint.2025.110521","DOIUrl":"10.1016/j.triboint.2025.110521","url":null,"abstract":"<div><div>Real wear process has entropy imbalance characteristic. Entropy equilibrium is a hypothetical ideal situation. In this paper, the dissipation wear model based on the entropy imbalance characteristic is proposed for improving wear prediction accuracy under mixed lubrication. Firstly, it is revealed that the imbalance between wear heat generation and dissipation leads to entropy imbalance. The prediction errors of wear rates by entropy-balanced assumption are more than 40 %. Then, evaluation parameter of entropy-imbalanced degree is defined by rotating normalized entropy generation-flow coordinate. Entropy-imbalanced dissipation wear model and corresponding wear life prediction method are obtained. Finally, it is verified that prediction errors of the proposed model and method are less than 10 % and 5 % through 20-hour wear life experiments under mixed lubrication.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110521"},"PeriodicalIF":6.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158656","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
Enhanced in-situ reinforcement evolution and superior wear resistance by changing Y2O3 addition in Ti6Al4V-based WC gradient coatings through laser cladding
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-10 DOI: 10.1016/j.triboint.2025.110524
Shuo Fu , Yaxin Xu , Lijuan Zhu , Haifei Lu , Wenya Li
{"title":"Enhanced in-situ reinforcement evolution and superior wear resistance by changing Y2O3 addition in Ti6Al4V-based WC gradient coatings through laser cladding","authors":"Shuo Fu ,&nbsp;Yaxin Xu ,&nbsp;Lijuan Zhu ,&nbsp;Haifei Lu ,&nbsp;Wenya Li","doi":"10.1016/j.triboint.2025.110524","DOIUrl":"10.1016/j.triboint.2025.110524","url":null,"abstract":"<div><div>A Y<sub>2</sub>O<sub>3</sub>-modified wear-resistant coating with a gradient structure of the WC content was produced by laser cladding on a Ti6Al4V matrix. Different Y<sub>2</sub>O<sub>3</sub> contents (0 vol%, 1.5 vol%, 3 vol% and 4.5 vol%) were employed to investigate the effect of Y<sub>2</sub>O<sub>3</sub> content on the microstructure morphology and tribological properties of Ti6Al4V-base WC gradient coatings. Results indicate that the coating containing 3 vol% Y<sub>2</sub>O<sub>3</sub> exhibited the most significant improvement in both microstructure refinement and tribological properties, resulting in 2.58 times increase in wear resistance compared to 0 vol% Y<sub>2</sub>O<sub>3</sub> addition and 42.6 times increase compared to the Ti6Al4V matrix. This work provides a preparation method for super wear-resistant coatings and reveals the internal strengthening mechanism of the coatings.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"205 ","pages":"Article 110524"},"PeriodicalIF":6.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093525","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 LDH core size on the tribological properties of solvent-free nanofluids
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-10 DOI: 10.1016/j.triboint.2025.110516
Wen Liu , Shuwen Liu , Peiyuan Zhang , Long Li , Zhangpeng Li , Jinqing Wang
{"title":"Effect of LDH core size on the tribological properties of solvent-free nanofluids","authors":"Wen Liu ,&nbsp;Shuwen Liu ,&nbsp;Peiyuan Zhang ,&nbsp;Long Li ,&nbsp;Zhangpeng Li ,&nbsp;Jinqing Wang","doi":"10.1016/j.triboint.2025.110516","DOIUrl":"10.1016/j.triboint.2025.110516","url":null,"abstract":"<div><div>Solvent-free nanofluids (NFs) based on a variety of lubrication core materials have attracted extensive attention in tribology, but it is still an open field to explore the relationship between size of core and tribological properties of NFs. In this paper, the multi-layer, ultrathin and ultrafine layered double hydroxides solvent-free nanofluids (ML-LDH-NFs, UT-LDH-NFs and UF-LDH-NFs) are proposed for lubricant. Compared with UT-LDH-NFs, ML-LDH-NFs exhibit better friction reduction and wear resistance performance for the interlayer sliding in multi-layer layered double hydroxides, UF-LDH-NFs with smaller lateral size is easier to slip into the sliding interface to form tribofilm, and thus provide more effective friction-reducing and anti-wear. This research provides fundamental insights into size effects of core materials for solvent-free nanofluids lubricants.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110516"},"PeriodicalIF":6.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158653","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
Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-10 DOI: 10.1016/j.triboint.2025.110525
Yaqing Xue, Hong Yu, Hongwei Liang, Xiaomei Wang, Conghui Meng, Shiyao Lei, Haochen Wang, Long Wang, Cheng-Feng Du
{"title":"Optimizing the Cr and V content in quaternary MAX phase for high-temperature lubricity and wear resistance","authors":"Yaqing Xue,&nbsp;Hong Yu,&nbsp;Hongwei Liang,&nbsp;Xiaomei Wang,&nbsp;Conghui Meng,&nbsp;Shiyao Lei,&nbsp;Haochen Wang,&nbsp;Long Wang,&nbsp;Cheng-Feng Du","doi":"10.1016/j.triboint.2025.110525","DOIUrl":"10.1016/j.triboint.2025.110525","url":null,"abstract":"<div><div>The MAX phase ceramics are one of the most promising solid lubricants for high-temperature (HT) conditions. Herein, two new quaternary MAXs with regulatable transition-metal constituents (Cr<sub>1</sub>Ti<sub>0.75</sub>Mo<sub>0.75</sub>V<sub>0.5</sub>AlC<sub>2</sub> and Cr<sub>1.25</sub>Ti<sub>0.75</sub>Mo<sub>0.75</sub>V<sub>0.25</sub>AlC<sub>2</sub>) are synthesized based on an high-entropy (HE) analogue. Their tribological properties against the Si<sub>3</sub>N<sub>4</sub> tribocouple in a wide temperature up to 800 ºC in the air are systematically studied, the impacts of the Cr and V contents on lubricity and anti-wear performance of the Cr-Ti-Mo-V MAXs are illuminated as well. At an extreme operating temperature of 800 °C, Cr<sub>1.25</sub>Ti<sub>0.75</sub>Mo<sub>0.75</sub>V<sub>0.25</sub>AlC<sub>2</sub> presents excellent self-lubrication performance with a mean COF of 0.20 and a mean wear rate as low as 3.6 × 10<sup>−7</sup> mm<sup>3</sup> N<sup>−1</sup> m<sup>−1</sup>.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110525"},"PeriodicalIF":6.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158601","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
Enhanced permeation mechanism and tribological assessment of ultrasonic vibration nanolubricants grinding CFRP
IF 6.1 1区 工程技术
Tribology International Pub Date : 2025-01-09 DOI: 10.1016/j.triboint.2024.110494
Teng Gao , Jixin Liu , Xiaofeng Sun , Yanbin Zhang , Min Yang , Mingzheng Liu , Wenhao Xu , Qinglong An , Dazhong Wang , Peiming Xu , Changhe Li
{"title":"Enhanced permeation mechanism and tribological assessment of ultrasonic vibration nanolubricants grinding CFRP","authors":"Teng Gao ,&nbsp;Jixin Liu ,&nbsp;Xiaofeng Sun ,&nbsp;Yanbin Zhang ,&nbsp;Min Yang ,&nbsp;Mingzheng Liu ,&nbsp;Wenhao Xu ,&nbsp;Qinglong An ,&nbsp;Dazhong Wang ,&nbsp;Peiming Xu ,&nbsp;Changhe Li","doi":"10.1016/j.triboint.2024.110494","DOIUrl":"10.1016/j.triboint.2024.110494","url":null,"abstract":"<div><div>CFRP precision grinding is a critical process in aeronautical industry. To enhance surface integrity, ultrasonic-assisted MQL grinding with nanolubricants was developed. The effects of ultrasonic on permeation mechanism and fluid dynamic pressure lubrication were investigated. The mechanical behavior of droplet anisotropic spreading, contact line dynamics, and capillary action was analyzed. Additionally, tribological properties of CFRP grinding surfaces with various fiber orientation angles were evaluated. The findings reveal contact angles in vertical grinding direction are higher than those in parallel direction. The application of 2D ultrasonic vibration decreased stable aspect ratio and increased spreading speed of droplets. Nanolubricants demonstrated significant improvements in reducing friction coefficient, grinding force ratio, wear area and volume, with a maximum reduction in friction coefficient of 34.87 %.</div></div>","PeriodicalId":23238,"journal":{"name":"Tribology International","volume":"204 ","pages":"Article 110494"},"PeriodicalIF":6.1,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143158604","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
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