Article
Engineering, Mechanical
M. Alvarez-Vera, Javier A. Ortega, I. A. Ortega-Ramos, H. M. Hdz-Garcia, R. Munoz-Arroyo, J. C. Diaz-Guillen, J. L. Acevedo-Davila, M. A. L. Hernandez-Rodriguez
Summary: This study investigated the microstructure and tribological performance of laser microtextured CoCr alloy discs against UHMWPE, showing that various texturing patterns can reduce friction and wear on UHMWPE pins. The laser surface texturing method improved the nanohardness and reduced friction coefficients, providing insights for enhancing the longevity of MoP joint replacements.
Article
Engineering, Mechanical
Tun Cai, Shengpeng Zhan, Tian Yang, Yinhua Li, Dan Jia, Jiesong Tu, Jian Li, Haitao Duan
Summary: UHMWPE-g-AA samples were prepared by ultraviolet-light-induced surface grafting, and their tribological properties in seawater were studied using ball-on-disk tribology experiments. The results show that the PAA lubricating brush layer improves the fluid medium at the friction surface/interface, reducing the friction coefficient and wear amount of the friction pair.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Pan Wang, He Liang, Liang Jiang, Linmao Qian
Summary: Surface roughness has a significant impact on friction and wear, especially at the nanoscale. This study investigates the effect of nanoscale surface roughness on sliding friction and wear. The research reveals that reducing surface roughness decreases friction and wear in mixed lubrication, but excessively low roughness can lead to friction failure. The findings enhance our understanding of the role of surface roughness in tribology.
Review
Polymer Science
Mohammed Abdul Samad
Summary: Polymer coatings have gained attention due to their low cost, ease of coating, low friction, and good anti-corrosion properties. Among various polymers, UHMWPE stands out for its excellent tribological properties, despite limitations such as low load-bearing capacity and low thermal stability. Researchers have developed various routes, including composite coatings, film systems, and dual film systems, to improve the tribological performance of UHMWPE coatings.
Article
Chemistry, Physical
YouJin Min, Oleksiy Penkov, Mahdi Khadem, Dae-Eun Kim
Summary: It has been found that the hardness of the substrate coating significantly affects the tribological performance of graphene films and the formation of an effective lubricating transfer film. Under certain hardness conditions, graphene can significantly reduce the friction coefficient and wear rate.
Article
Materials Science, Characterization & Testing
Geraldine Theiler, Thomas Gradt
Summary: This paper investigates the influence of counterface materials on the sliding behavior of polymer materials in a hydrogen environment. It found that the friction and wear of polyimide and polyetheretherketone materials are dependent on the counterface material, while this effect is not observed for polytetrafluoroethylene composites.
Article
Materials Science, Multidisciplinary
Raveen John, Richard Lin, Krishnan Jayaraman, Debes Bhattacharyya
Summary: In the secondary/machining process of composites, it is important to compare the microstructure features of tool wear and machined surface mechanisms when machining different types of fibers. This experimental study investigated the dry-end milling of two polypropylene (PP)-based composites made of kenaf and glass fibers. Surprisingly, cutting glass fiber/PP resulted in lower tool wear but adverse machined surface finishes, indicating the need to consider the appropriate criterion for tool life determination.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Mechanical
Sahar Ghatrehsamani, Saleh Akbarzadeh, M. M. Khonsari
Summary: During the running-in stage of mechanical components, a model is developed to predict the changes in wear rate, friction coefficient, and surface asperities. Experimental results validate the predictions, showing acceptable agreement between predicted and actual data.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Coatings & Films
Gozde Celebi Efe, Elif Yenilmez, Ibrahim Altinsoy, Serbulent Turk, Cuma Bindal
Summary: The present study successfully coated a UHMWPE-HAp composite film on the surface of Ti6Al4V alloy, achieving surface modification of the material. Various analyses were conducted on the composite coating, demonstrating strong adhesion, good wear resistance, and potential application in artificial hip joint replacements.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Neha Singh, Sujeet K. Sinha
Summary: This study investigated hybrid polymeric composites of epoxy with UHMWPE and MoS2 fillers, where the addition of base oil SN150 showed excellent tribological performance under constant contact pressure and speed, with low wear rate and friction coefficient. The fillers also imparted hydrophobic properties to the epoxy surface, reducing adhesion and friction.
Article
Engineering, Mechanical
Michael Kucher, Martin Dannemann, Rene Fuessel, Marie-Theres Weber, Niels Modler
Summary: The study analyzed the friction and wear behavior of PEEK in dentistry applications, revealing a significantly higher wear rate of PEEK compared to enamel/dentine, with tooth samples showing increased surface roughness after friction tests.
Article
Engineering, Chemical
Yulong Li, Nikolay Garabedian, Johannes Schneider, Christian Greiner
Summary: Abrasive wear has a significant impact on machinery, particularly in the mining and construction industries. Understanding the surface topography, including form, waviness, and roughness, is crucial to prolong machinery lifetime and reduce energy consumption. This study reveals the influence of surface topography on abrasive wear by using the complete waviness profile of the sliding track. The findings provide insights into the friction wear structure and offer a basis for optimizing surfaces for better tribological performance.
Review
Engineering, Mechanical
Robert Ian Taylor
Summary: Amontons' law has been experimentally shown to hold true for more than 500 years, and researchers have studied the contact of rough surfaces under different deformation conditions. With the increasing focus on energy efficiency, research on mixed/boundary lubrication and friction prediction is becoming important.
Article
Engineering, Mechanical
Chris Goralka, Jake Bridges, Muhammad Jahan, Mark Sidebottom, Timothy Cameron, Yan Lu, Zhijiang Ye
Summary: Graphene as an additive in a water-based nanofluid lubricant demonstrates superior friction and wear performance, reducing friction coefficient and wear rate. The effect of graphene concentration on friction and wear exhibits a non-monotonic trend. An optimal concentration of 0.10 wt.% is found at different surface roughnesses.
Article
Materials Science, Composites
Meng Liu, Zhaozhu Zhang, Yanling Wang, Peilong Li, Mingming Yang, Junya Yuan
Summary: TiN@ZIF-8 hybrid with a hierarchical structure was fabricated by growing ZIF-8 onto the TiN surface. The hybrid exhibited a significantly increased specific surface area, leading to improved mechanical, thermal, and abrasion resistance properties of fabric composites.
COMPOSITES COMMUNICATIONS
(2022)
Article
Engineering, Mechanical
Gengyuan Gao, Zhongwei Yin, Dan Jiang, Xiuli Zhang, Yanzhen Wang
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
(2016)
Article
Engineering, Mechanical
Xiuli Zhang, Zhongwei Yin, Gengyuan Gao, Zheng Li
TRIBOLOGY INTERNATIONAL
(2015)
Article
Engineering, Mechanical
Yanzhen Wang, Zhongwei Yin, Dan Jiang, Gengyuan Gao, Xiuli Zhang
INDUSTRIAL LUBRICATION AND TRIBOLOGY
(2016)
Article
Engineering, Mechanical
Xiuli Zhang, Zhongwei Yin, Dan Jiang, Gengyuan Gao, Yanzhen Wang, Xinbo Wang
TRIBOLOGY INTERNATIONAL
(2016)
Article
Engineering, Mechanical
Yanzhen Wang, Zhongwei Yin, Gengyuan Gao, Xiuli Zhang
MECHANICS & INDUSTRY
(2017)
Article
Engineering, Mechanical
Gengyuan Gao, Zhongwei Yin, Dan Jiang, Xiuli Zhang
TRIBOLOGY INTERNATIONAL
(2014)
Article
Engineering, Mechanical
Xiuli Zhang, Zhongwei Yin, Dan Jiang, Gengyuan Gao
MECHANICS & INDUSTRY
(2014)
Article
Engineering, Mechanical
Xiuli Zhang, Gengyuan Gao, Zhongwei Yin, Yanzhen Wang, Chao Gao
MECHANICS & INDUSTRY
(2018)
Article
Engineering, Mechanical
Xiuli Zhang, Zhongwei Yin, Qin Dong
TRIBOLOGY INTERNATIONAL
(2019)
Article
Engineering, Mechanical
Zhen Yang, Xiuli Zhang, Yanzhen Wang, Yuanliang Zhao
Summary: This paper analyzes the elastohydrodynamic lubrication performance of double-layer composite water-lubricated bearing by fluid-structure interaction (FSI) method, and studies the effects of eccentricity ratio, rotational speed, elastic modulus distribution, and thickness distribution of bearing bush on its lubrication performance. The results show that the lubrication performance of the double-layer bearing is more similar to that of a plastic bearing. The maximum water film pressure, load carrying capacity, and bush deformation increase significantly with the increase of rotational speed and eccentricity ratio. The elastic modulus distribution and thickness distribution have an impact on the deformation distribution of the bush but have little effect on the total bush deformation and bearing lubrication performance.
MECHANICS & INDUSTRY
(2023)
Article
Materials Science, Multidisciplinary
Xiuli Zhang, Zhilan Liu, Xu Wang, Xiufang Xu, Yongling Wu, Diben Wu
Summary: By selecting different coatings, the anti-sticking performance of tire molds was improved. The microstructure and chemical composition of the coatings affected the demolding force and residual pollutants.
Article
Engineering, Mechanical
Yuankang Shen, Yao Zhang, Xiuli Zhang, Hongyu Zheng, Guorui Wei, Mingyang Wang
Summary: This paper proposes a fluid-structure interaction (FSI) numerical calculation method to investigate the elastohydrodynamic lubrication performance of rubber-plastic double-layer water-lubricated journal bearings. The accuracy and rapidity of the FSI method are improved by studying the effect of mesh density and comparing the results with literature. Numerical simulations are conducted to reveal the influence of operating conditions and structural parameters on the lubrication performance of the bearings. The results provide design references for the bearings.
Article
Materials Science, Characterization & Testing
Shidong Zhou, Xiaoxing Niu, Xiuli Zhang, Yuanliang Zhao
Summary: The synergistic effect of silica and copper nanoparticles in polyimide affects the friction and wear performance of polyethersulfone/polyimide blends. Silica nanoparticles improve the antifriction performance, while copper nanoparticles enhance the wear resistance. The optimal content for both silica and copper is 0.8wt% and 0.2wt%, respectively.
POLYMERS & POLYMER COMPOSITES
(2022)
Article
Engineering, Mechanical
Xiuli Zhang, Zhongwei Yin, Qin Dong, Jun Cao
MECHANICS & INDUSTRY
(2020)
Article
Engineering, Mechanical
Yankui Song, Ke Xiao, Guo Xiang
Summary: The novelty of this study lies in constructing an Entropy-based wear and fluid-solid-thermal (FST) coupled model for journal bearings, and revealing the transient interaction behavior between wear evolution and FST evolution during repeated starting and stopping. The wear rate is measured experimentally, and the contact temperature, friction coefficient and normal contact force are obtained from the validated FST model. Wear tests and numerical calculations are conducted to validate the predicted wear rate and investigate the time-varying wear and FST evolution of journal bearings.
Article
Engineering, Mechanical
Xin-long Liu, Xin Guan, Yuan Zhong, Qian Xiao, Yong Cao, Wu-lue Zhang, Song Zhang, Yi-ting Zheng, Ming-sheng Gao, Dao-yun Chen, Wen-bin Yang
Summary: Gaps in the conductor rail joints of intercity trains have an impact on current transmission and the wear of carbon skateboards. These gaps decrease the coefficient of friction, increase electrical contact resistance, and affect the wear rate of carbon skateboards.
Article
Engineering, Mechanical
Yuhang Wu, Conglin Dong, Xiuqin Bai, Chengqing Yuan
Summary: The study developed a new composite material by incorporating hexagonal boron nitride (h-BN) particles into a thermoplastic polyurethane (TPU) matrix, which exhibited excellent self-lubricating properties and reduced frictional excitation forces. The addition of h-BN particles effectively reduced the coefficient of friction, decreased fluctuation amplitude, enhanced wear resistance, and attenuated vibration behaviors.
Article
Engineering, Mechanical
Tiancheng Ouyang, Xiuyang Sun, Wentao Tang, Yinxuan Li, Zhi Qun Tian, Yanzhou Li
Summary: By adding nitrogen-doped graphene and C60 nanoparticles to the lubricant, a highly efficient nano-lubricant with vibration and noise reduction properties is synthesized.
Article
Engineering, Mechanical
Xin Zhuo, Jun Cao, Haibo Huang, Li Liu, Xinkun Suo, Peiqing Ye, Zeshan Abbas
Summary: A polymer coating prepared by liquid spraying technology on the surface of 20CrMo steel demonstrates good tribological and anti-cavitation erosive properties. It can effectively replace CuPb24Sn copper alloy in valve plates for pumps under different lubrication conditions. The coating exhibits adhesive wear and reduces frictional loss, and mainly shows abrasive wear under complex working conditions. Its lipophilicity, high hardness to elastic modulus ratio, and corrosion resistance are the main influencing factors for its performance.
Article
Engineering, Mechanical
Md. Aminul Islam, Jiaren (Jimmy) Jiang, Yongsong Xie
Summary: Erosion-corrosion is a major factor in material loss and reduced useful life of hydro-transport equipment. This study evaluates the erosion-corrosion characteristics of different materials and finds that matrix wear affects the degradation of carbides. Sufficient wear and corrosion resistance in the surrounding matrix are important for good erosion-corrosion resistance.
Article
Engineering, Mechanical
Andre Dubois, Oussama Filali, Laurent Dubar
Summary: This study investigates the effect of surface roughness, contact pressure, and lubrication on the onset of galling in aluminum 6082-T6 using a pin-on-plate tribometer. The experimental results show that the roughness and lubricants play a significant role in preventing galling.
Article
Engineering, Mechanical
Jizhan Wu, Peitang Wei, Guoqiang Liu, Difa Chen, Xiuhua Zhang, Taimin Chen, Huaiju Liu
Summary: This study conducted a comprehensive evaluation of the DLC coating treatment on the loading capacity of gears and characterized the surface features and fatigue performance. The results demonstrate that DLC coating significantly improves the hardness and surface residual compressive stress of the gears, as well as enhances their contact fatigue performance.
Article
Engineering, Mechanical
Yangping Liu, Hwaran Lee, Annsley Mace, Jeremy L. Gilbert
Summary: An AFM-based single asperity tribology method was used to investigate the wear performance of carbides and base metal matrix in high carbon CoCrMo alloy. The wear behavior of the two types of carbides was stress-dependent and influenced by chemical composition. Cr-rich carbides exhibited higher wear resistance compared to Mo-rich carbides.
Article
Engineering, Mechanical
Zdenek Riha, Michal Zelenak, Akash Nag, Jakub Poloprudsky, Tomas Kruml, Sergej Hloch
Summary: This study investigates the erosion performances of a high-speed modulated jet (MWJ) and continuous water jet (CWJ). By comparing different nozzles and water jet powers, the effects of modulated and continuous jets on aluminum alloy were studied. The results show that under certain conditions, modulated jet can create deeper and sharper grooves while reducing the impact of lateral flow.
Article
Engineering, Mechanical
Chunyu Yu, Weipu Li, Yang Guo, Xianbin Sun, Fanli Hong, Ning Sun, Qinghai Zhang
Summary: This study explores the relationship between the wear rate of train brake pads and its features, and proposes a method for predicting the wear rate suitable for small sample data. Grey relational analysis and Pearson correlation analysis are used to determine the preferred features that affect the wear rate, and a BOA-BP model is established for prediction. The results show that BOA-BP exhibits better advantages in prediction with small samples.
Article
Engineering, Mechanical
Shan Yin, Xin Zhao, Shuangchao Huang, Zefeng Wen, Xuesong Jin
Summary: This study simulated the rolling contact of a driving wheelset over tangent and curved tracks at a speed up to 500 km/h using an explicit finite element approach to derive creep curves. The comparison between quasi-steady curves and transient curves in the presence of rail corrugation helped to identify cases where traditional theories are inapplicable and where transient effects must be considered. Additionally, the study further analyzed the influence of middle/high-frequency vibrations in the presence of rail corrugation.
Article
Engineering, Mechanical
Jiyao Zhang, Yuanlie Yu, Junlei Tang, Yingying Wang, Honggang Sun, Kaikai Song, Jianhong Gong, Pingping Liu, Xiaoming Liu, Lina Hu, Parthiban Ramasamy, Juergen Eckert
Summary: The influence of high-carbon addition on the microstructure, hardness, and wear behavior of CoCrNi alloy was investigated. It was found that the addition of carbon resulted in the formation of carbide particles, enhancing the hardness and improving the wear resistance. Fracture and detachment of hard carbides during friction introduced additional abrasive particles, transitioning the wear mechanism from adhesive-dominated to abrasive-dominated.
Article
Engineering, Mechanical
Yanfei Liu, Shengtao Yu, Ruize Zhang, Xiangyu Ge, Wenzhong Wang
Summary: This study reports the tribological behavior of nanodiamond plate (NDPL) as a nanoadditive for the first time and compares it with nanodiamond particles (NDPA). The results show that NDPL provides better lubrication performance at higher concentrations, and the sliding between NDPLs and the structural transformation from sp3 to sp2 carbon play a crucial role in lubrication and wear resistance.
