Article
Engineering, Mechanical
Qipeng Huang, Chaohua Wu, Xiaoliang Shi, Yangyang Gao, Yawen Xue, Kaipeng Zhang, Hongtao Tang
Summary: The tribological properties of AISI 4140 steel (AS) were improved by combining texture with SnAgCu (SAC), but it caused fast loss of lubricants. This problem was solved by adding MXene-Ti3C2/nano-TiC (MNT) into SAC to prepare multi-solid lubricants. Friction tests were conducted under starved lubrication with different contact pressures, and it was found that AS-SAC-MNT with 4 wt% MNT showed a decrease of 24.29% in COF and 41.59% in wear depth compared to AS-SAC. The improved tribological properties were attributed to the formation of a stable solid lubricating film and enhanced adsorption ability to oil.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Manufacturing
Yuyang He, Yonghong Fu, Hao Wang, Jie Yang
Summary: Micro-dimples with optimal depth and area ratio were fabricated on the guideway using laser SPI process, resulting in consistent surface shape and significantly reduced friction coefficient and driving force amplitude.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Engineering, Mechanical
Dan Li, Xuefeng Yang, Yuanbo Wu, Jian Cheng, Shouren Wang, Zhuang Wan, Wenbo Liu, Guofeng Xia
Summary: The research on surface texture is transitioning from single macro-texture to composite micro-nano texture, with a weak focus on the anti-friction mechanisms and theoretical models. Different surface texture characteristics and their applicable working conditions are the primary research focus. This study established a mathematical model for hydrodynamic lubrication, simulated four texture models, and verified the model through friction experiments, concluding that circular, chevron, groove, and composite textures have different optimal working conditions.
CHINESE JOURNAL OF MECHANICAL ENGINEERING
(2022)
Article
Engineering, Mechanical
Hiba Jendoubi, Olga Smerdova, Noel Brunetiere
Summary: While hydrophobic surfaces can reduce friction by allowing liquid to slip over them, super-hydrophobic surfaces created through texturing with low surface energy material may actually exhibit higher friction coefficients compared to smooth surfaces. This unexpected result could be explained by changes in wetting regime due to high pressure in fluid and potential generation of vortices in the cavities.
Article
Multidisciplinary Sciences
Yuanyuan Jiang, Zhijun Yan, Shengwei Zhang, Ziyu Shen, Haocheng Sun
Summary: This paper studies the impact of surface texture parameters and distribution patterns through numerical simulation and experiment. The results show that micro-texture can improve the bearing capacity of the oil film, and the distribution pattern of the texture array has an influence on its effect.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Mechanical
Maximillian Zimmer, Sorin-Cristian Vladescu, Lars Mattsson, Mark Fowell, Tom Reddyhoff
Summary: Based on experiments with reciprocating rig, it was found that macro-scale surface texture can reduce friction by up to 35% in the hydrodynamic regime. The Shear-Area Variation mechanism suggests that macro-texture can reduce contact area and increase shear-rate, leading to reduced friction and potential efficiency improvements in machines.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Qinggang Guo, Long Zheng, Yinghui Zhong, Shukun Wang, Luquan Ren
Summary: Numerical models of continuous groove textures with X-shaped units were established in this study. The effects of geometric parameters and sliding speed on tribological properties were systematically investigated. The optimal geometric parameters for each texture shape were determined. It was found that the circular texture exhibited the best lubrication performance at lower area densities, while the square texture with a groove depth increase and an orientation of theta = 90 degrees showed better tribological performance when the area density exceeded 25%. The lubrication mechanism was explained as a trade-off between fluid flow and the generation of hydrodynamic pressure.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
R. Taylor, I Sherrington
Summary: A new equation is proposed to calculate the proportion of mixed/boundary friction in a contact based on experimental data, and it is revealed that some commonly used rough surface contact models underestimate this type of friction. The new model suggests treating rough surface contact modeling as a growth/decay process, and the consequences of this approach are discussed.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Engineering, Mechanical
Zhongliang Xie, Yun Zhang, Jinzhu Zhou, Weidong Zhu
Summary: This paper aims to reveal the micro interface lubrication regimes of water lubricated bearings through computational fluid dynamic analysis. The influences of operating conditions and dimensionless structural parameters on fluid features are explored, and experimental data verifies the correctness of the lubrication model. The research results lay a solid foundation for further optimal design of such bearings.
MECHANICAL SYSTEMS AND SIGNAL PROCESSING
(2021)
Article
Chemistry, Multidisciplinary
Weifeng Lin, Jacob Klein
Summary: Healthy articular cartilage has very low friction coefficients, which help reduce wear and tear and cartilage degradation, maintaining the balance of chondrocyte functions. Investigating the origins of low friction in articular cartilage is crucial for alleviating disease symptoms and slowing or reversing the degradation process. Recent studies have focused on the mechanisms of joint lubrication and the development of natural and bio-inspired lubricants.
ADVANCED MATERIALS
(2021)
Article
Engineering, Chemical
Y. Zhao, P. L. Wong
Summary: Recent research has found a new lubrication scheme brought by boundary slip effect in lubrication. However, achieving a durable slip coating in elastohydrodynamic lubrication (EHL) is challenging. One possible solution is to apply a slip surface coating onto a substrate with an interlayer, creating a multi-layer structure. This study presents a robust framework for analyzing the effects of coating and interlayer thickness and strength, and develops a general algorithm for investigating the mechanics of boundary slip EHL contact.
Article
Chemistry, Physical
Ke Ren, Hongping Wan, Hans J. Kaper, Prashant K. Sharma
Summary: In this study, hyaluronic acid (HA) was conjugated with dopamine to form HADN, which exhibited adhesive properties while retaining viscosity enhancement capacity. It was found that HADN could enhance cartilage lubrication through adsorption onto collagen, providing better protection for cartilage compared to HA alone.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Mechanical
Huanhuan Wang, Naiming Lin, Shuo Yuan, Zhiqi Liu, Yuan Yu, Qunfeng Zeng, Dongyang Li, Jianfeng Fan, Yucheng Wu
Summary: Inspired by natural shell surfaces, six bionic multi-scale composite surface textures were designed and numerically simulated to investigate their influence on lubrication characteristics. The results showed that the bionic surface enhanced load-carrying capacity and reduced friction coefficient. Groove combinations had better lubrication performance compared to wavy combinations. The texture geometric parameters significantly affected the frictional characteristics.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Engineering, Mechanical
S. S. Gamaniel, D. Dini, L. Biancofiore
Summary: This work investigates the influence of fluid viscoelasticity on the performance of lubricated contacts in the presence of cavitation. The study uses the Oldroyd-B model to describe the effect of viscoelasticity and linearizes the equations to analyze the impact of viscoelastic thin films under cavitation conditions.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Engineering, Mechanical
Vimal Edachery, R. Shashank, Satish Kailas
Summary: The study highlights the influence of surface texture directionality and roughness on lubricant wettability, showing that wettability varies with roughness and that directionality parallel to sliding direction improves entrapment capability. Surfaces with individual entrapment sites exhibit better lubricant entrapment capability in near Wenzel mixed-wetting conditions.
TRIBOLOGY INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Kedong Zhang, Jianxin Deng, Rong Meng, Peng Gao, Hongzhi Yue
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
(2015)
Article
Biophysics
Hongzhi Yue, Jianxin Deng, Jun Zhou, Yan Li, Fuqian Chen, Lihong Li
JOURNAL OF MECHANICS IN MEDICINE AND BIOLOGY
(2017)
Article
Materials Science, Ceramics
Xuemu Li, Jianxin Deng, Liangliang Zhang, Yayun Liu, Hongzhi Yue, Ran Duan, Dongliang Ge
CERAMICS INTERNATIONAL
(2019)
Article
Engineering, Mechanical
Youqiang Xing, Jianxin Deng, Shipeng Li, Hongzhi Yue, Rong Meng, Peng Gao
Article
Materials Science, Ceramics
Yayun Liu, Jianxin Deng, Hongzhi Yue, Ran Duan, Xuemu Li, Kornel Ehmann
CERAMICS INTERNATIONAL
(2019)
Article
Automation & Control Systems
Dongliang Ge, Jianxin Deng, Ran Duan, Yayun Liu, Xuemu Li, Hongzhi Yue
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2019)
Article
Engineering, Mechanical
Xuemu Li, Jianxin Deng, Hongzhi Yue, Dongliang Ge, Xueqian Zou
TRIBOLOGY INTERNATIONAL
(2019)
Article
Materials Science, Ceramics
Dongliang Ge, Jianxin Deng, Ran Duan, Xuemu Li, Yayun Liu, Hongzhi Yue
CERAMICS INTERNATIONAL
(2019)
Article
Chemistry, Physical
Xuemu Li, Jianxin Deng, Dongliang Ge, Hongzhi Yue
APPLIED SURFACE SCIENCE
(2020)
Article
Materials Science, Coatings & Films
Yun Zhang, Jianxin Deng, Ying Meng, Hongzhi Yue
SURFACE ENGINEERING
(2020)
Article
Engineering, Mechanical
Hongzhi Yue, Jianxin Deng, Yun Zhang, Ying Meng, Xueqian Zou
TRIBOLOGY INTERNATIONAL
(2020)
Article
Engineering, Mechanical
Ying Meng, Jianxin Deng, Yun Zhang, Shijie Wang, Xuemu Li, Hongzhi Yue, Dongliang Ge
Article
Engineering, Biomedical
Fuqian Chen, Jun Zhou, Yan Li, Yongbo Wang, Lihong Li, Hongzhi Yue
ANNALS OF BIOMEDICAL ENGINEERING
(2015)
