Article
Engineering, Mechanical
Wenhua Zhuang, Zhongli Han, Yufan Jiang, Hui Zheng, Qian Huang, Xianglong Guo, Lefu Zhang
Summary: The frequency has a significant impact on the fretting corrosion behavior of Alloy 690 tube, leading to a shift in wear mechanism and the formation of a gradient multi-layer structure.
Article
Materials Science, Multidisciplinary
Zhengyi Li, Hongying Yu, Dongbai Sun
Summary: The study investigated the wear behavior of 7075-T6 aluminum alloy in a 3.5% NaCl solution under different hydrostatic pressures and presented a tribocorrosion model. The results showed that the interaction of mechanics, chemistry, and electrochemistry accelerated the tribocorrosion process under high hydrostatic pressure. Corrosion-induced wear was identified as the main failure factor of the aluminum alloy under high hydrostatic pressure.
Article
Chemistry, Multidisciplinary
Jingbao Wang, Jingmao Zhao, Mohammad Tabish, Lijun Peng, Qi Cheng, Fan Shi
Summary: The long-term corrosion inhibition for AA5052 aluminum alloy was achieved by the hybrid inhibitor combined by rosemary extract (RSE) and zinc chloride (ZnCl2). The highest efficiency of ZnCl2, RSE, and hybrid inhibitor (ZR) reached 67.34 %, 88.41 % and 96.48 % at 2000 ppm, respectively. The excellent inhibition performance of the hybrid inhibitor was attributed to the synergism between RSE and ZnCl2.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Qing Yan, Hongwei Zhang, Cheng Man, Kun Pang, Xiaoying Wang, Zhongyu Cui, Hongzhi Cui
Summary: The study investigates the effect of intermetallic compounds on the tribocorrosion behavior of the 7075 aluminum alloy. It reveals the important roles played by these compounds in the tribocorrosion resistance and mechanism of the sample.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Engineering, Mechanical
Zheng-yang Li, Zhen-bing Cai, Wei Zhang, Rui-rui Liu, Zhong-bo Yang, Yong-jun Jiao
Summary: This study investigated the fretting corrosion behavior of zirconium alloy under different pH conditions. The morphology, microstructure, and wear mechanism of the alloy were analyzed. The results showed that the wear mechanism under acidic conditions is oxidation wear and abrasive wear. Additionally, the maximum wear volume was observed in the pH 1 condition.
Article
Engineering, Mechanical
Yun Zhang, Gang Lei, Kaiguang Luo, Pinghu Chen, Charlie Kong, Hailiang Yu
Summary: Al0.5CoCrFeNi high-entropy alloy particles reinforced aluminum matrix composites (HEAps/AMCs) with various reinforcement additions were fabricated and their wear properties were investigated. It was found that a moderate range of reinforcement exhibited lower coefficient of friction and wear rate compared to the matrix alloy. The HEA particles hindered plastic deformation and improved the crack resistance of the composites through tight interface and interaction with dislocations.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Energy & Fuels
Yuan Zhu, Zhifan Hua, Yao Lu, Ziyuan Wang, Zhongliang Tian, Ke Peng
Summary: The influence factors of corrosion behavior and electrochemical properties of commercial Al alloys as anodes are investigated in this study through the hydrogen collection method and multiple electrochemical measurements. The results show that the 7075 alloy exhibits a lower self-corrosion rate and better electrochemical properties, making it a preferred anode material for Al-air batteries. The study is of great significance for understanding the role of multicomponent commercial Al alloy anodes in alkaline batteries.
Article
Electrochemistry
Han Liu, Minheng Ye, Zuoyan Ye, Lili Wang, Yuting Hao, Jingxi Zhu, Ping Xu, Chao Wang
Summary: The study systematically investigated the anodic behaviors of 7075 aluminum alloy during the electrochemical polishing process in phosphoric acid under different applied potentials, and intensively studied the changes in surface morphology, roughness, electric current, and resistance. The experimentally validated factors influencing each stage and the effects of impurity phases in the ECP process. Under optimized conditions, a mirror surface with reduced roughness can be achieved through ECP.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Ke Xi, Hao Wu, Chilou Zhou, Ziyang Qi, Kailong Yang, Ricky K. Y. Fu, Shu Xiao, Guosong Wu, Kejian Ding, Guohua Chen, Paul K. Chu
Summary: This study investigates the corrosion and wear resistance of micro-arc oxidation (MAO) coatings containing quasi-2D sericite microplates on 2024 aluminum alloy. The results show that the incorporation of sericite improves the corrosion resistance, with the best performance observed in the M-15 sample. The wear resistance of the MAO coating is also enhanced by the addition of sericite microplates.
APPLIED SURFACE SCIENCE
(2022)
Article
Materials Science, Coatings & Films
Chao Yang, Jiayu Zhu, Suihan Cui, Pinghu Chen, Zhongcan Wu, Zhengyong Ma, Ricky K. Y. Fu, Xiubo Tian, Paul K. Chu, Zhongzhen Wu
Summary: By using zinc-containing phosphate electrolyte for plasma electrolytic oxidation of aluminum alloys, the corrosion resistance, surface hardness, and wear resistance of the coatings are simultaneously improved, resulting in enhanced durability and corrosion resistance of the components.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Rohan Kumar Barooah, Jose Mario Paiva, A. F. M. Arif, Sushant Rawal, Bipasha Bose, S. C. Veldhuis
Summary: This study focuses on evaluating the coating performance of 10 different PVD coatings for automotive engine grade Al-12Si die-cast alloy, with a novel thin multilayered TiAlN coating showing the best wear resistance. A common wear pattern was identified for thin hard coatings on form taps for high silicon content aluminum alloy, with coating fractures along the edges of the lobe in a form tap revealed during detailed investigation of wear mechanisms.
Article
Materials Science, Coatings & Films
Jiaxuan Li, Zongde Liu, Huaqing Ning, Herong Ma, Ruixiang Xie, Yao Kong, Yundi Fu
Summary: A high-performance composite protective coating was successfully prepared on the surface of 5083 aluminum alloy, exhibiting high wear resistance and corrosion resistance, through the innovative design of interlayer connection materials and the optimization of process parameters.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Xiang Cai, Mengmeng Yang, Yanxin Qiao, Zan Wang, Jian Zhou, Feng Xue
Summary: This paper discusses the differences in microstructure, mechanical properties, wear resistance, and corrosion behavior between nickel-aluminum bronze alloys fabricated via wire arc additive manufacturing (WAAM) and casting. The results show that the WAAM-NAB alloy has smaller grain size, higher bending and tensile strength, lower coefficient of friction, and better corrosion resistance compared to the cast alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Multidisciplinary
Yu-Jui Lin, Chao-Sung Lin
Summary: The corrosion behavior and corrosion rate of friction stir welded AZ31B magnesium alloy and 6N01 aluminum alloy dissimilar joints were studied using real-time imaging, potentiodynamic polarization, EIS, and hydrogen evolution tests. The corrosion rate was found to increase in the order of Al base metal < Mg base metal < stirred zone. The galvanic coupling of the Mg phase to other phases enhanced the corrosion of both base metals, and intense corrosion at BM-AZ31B elevated the interfacial pH due to water reduction on the cathodic particles of BM-6N01.
Article
Materials Science, Multidisciplinary
H. Chen, Z. Zhang, X. H. Hao, B. X. Huang, X. C. Zhao, C. C. Hu
Summary: The NiTi/AlNi2Ti alloy, composed of AlNi2Ti primary dendrites and NiTi interdendritic phase, exhibited better tribocorrosion resistance than the 0Cr18Ni9 material in 0.5 mol/L H2SO4 solution with high OCP, low corrosion current, and low wear volume. The wear volume of the NiTi/AlNi2Ti alloy was approximately 10 times lower than that of the reference material 0Cr18Ni9, indicating a strong corrosion-wear synergistic effect with corrosion accelerated wear being the main mechanism.
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.