Article
Engineering, Mechanical
Jitendra Narayan Panda, Brandon Christopher Wong, Eugene Medvedovski, Philip Egberts
Summary: Iron boride coatings produced through thermal diffusion on carbon steel exhibited enhanced wear resistance due to higher hardness and chemical inertness of the protective layer. Under tribo-corrosion conditions, the multi-layered structure above boronized steel reduced crack propagation and decreased the friction coefficient.
TRIBOLOGY INTERNATIONAL
(2021)
Review
Engineering, Mechanical
Yong Zheng, Kian Bashandeh, Ahmad Shakil, Swarn Jha, Andreas A. Polycarpou
Summary: The demand for high performance and customizable oral care products poses technical challenges in dentistry, with a lack of clear scientific understanding hindering the development of effective mitigation strategies. Existing literature on dental tribology is scattered, and conflicting evaluation methods for tooth damage and wear further complicate the issue.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ayhan Celik, Burak Atik, Yakup Uzun, Yusuf Burak Bozkurt, Halim Kovaci
Summary: In this study, duplex coatings were applied on Cp-Ti surface to improve its wear and corrosion resistance by imitating the layered structure of the Chrysochroa rajah cuticle. The chitin + h-BN duplex coated surface exhibited the lowest corrosion current density and the highest wear resistance. The coated surfaces improved the electrochemical, abrasion and tribocorrosion properties of Cp-Ti.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Xiulin Ji, Chanyuan Luo, Juan Jin, Yingtao Zhang, Yong Sun, Li Fu
Summary: The tribocorrosion performance of 316L stainless steel was improved by laser cladding Fe-based alloy coatings. The number of coating layers increased the hardness and reduced the volume loss rate of the steel. The multi-layer coating also caused changes in the surface chemical composition and facilitated the formation of a lubricating film.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Coatings & Films
Xiulin Ji, Juan Jin, Youbin Lai, Fengtao Wang, Xingmin Huang
Summary: The brittleness of amorphous alloys can be improved by ultrasonic impact treatment (UIT) without preloading. UIT leads to surface softening and sample cross-section hardening. The change in hardness can be controlled by adjusting the UIT duration and ultrasonic power. UIT increases relaxation enthalpy, indicating higher free volume and enhanced plasticity.
SURFACE & COATINGS TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Jose Antonio Garcia, Adrian Claver, Mikel Marques, Eluxka Almandoz, Jonathan Fernandez de Ara, Jose F. Palacio, Ibon Azkona
Summary: This study aims to improve the tribocorrosion properties of WC-TiC-Co substrates by coating them with hard coatings such as AlCrSiN. The results showed that the coated samples exhibited improved tribocorrosion properties as well as good mechanical and adhesive properties, suggesting the potential use of these coated materials in demanding cutting and machining applications.
Article
Materials Science, Coatings & Films
Auezhan Amanov
Summary: This study investigated the effect of post-AM surface modification temperature on the tribological and tribocormsion properties of Co-Cr-Mo alloy, aiming to reduce COF, SWR, and improve TCR. The results showed that HT sample exhibited better performance than AT sample and as-printed Co-Cr-Mo alloy samples, indicating potential benefits for biomedical applications.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Engineering, Civil
Abbas Divani, Jamshid Mohammadi
Summary: This paper presents the further development of a spring mechanical system, including the derivation of equations for determining system parameters based on material properties, the development of applications for deriving fatigue life relations considering the ratio of minimum to maximum stress, and the extension of the model to incorporate hysteresis behavior under cyclic loading.
ENGINEERING STRUCTURES
(2022)
Article
Engineering, Mechanical
Jianxiong Gao, Pengnian Zhu, Yiping Yuan, Zhifeng Wu, Rongxia Xu
Summary: This study proposes a pair of residual strength and residual stiffness models based on a unified fatigue damage formula, and predicts the fatigue life of composite materials under variable amplitude cyclic loading. The experimental results validate the accuracy of these models and methods in estimating the performance degradation and fatigue life of composite materials.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Materials Science, Multidisciplinary
M. Aslan Cakir, T. Yetim, Y. B. Bozkurt, H. Kovaci, A. Celik
Summary: In this study, commercial titanium (Cp-Ti) was coated with a UV-curable film to improve its wearing and tri-bocorrosion performance. Wear tests were conducted under dry and simulated body fluid (SBF) environments, and tribocorrosion tests were performed in SBF. SEM investigations showed that a polymeric film with a layer thickness of about 3-4 mu m was deposited on Cp-Ti. The Si element in the film considerably increased the hardness and improved the wear performance. According to the tribocorrosion test results, the corrosion mechanism significantly increased the wear rates. The wear resistance of the Cp-Ti surface was markedly enhanced by the UV-curable treatment.
Article
Materials Science, Multidisciplinary
Yongqing Shen, Jun Luo, Bin Liao, Xu Zhang, Yuanyuan Zhao, Xinmiao Zeng, Lin Chen, Pan Pang, Fang Bao
Summary: The impact of different C2H2 flow rates on the microstructure, mechanical properties, tribological, and tribocorrosion performance of Ti-DLC films was investigated. Results showed that increasing C2H2 flow rate improved the density and uniformity of the films, but also affected hardness and compressive stress.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Materials Science, Ceramics
Yixuan Wang, Jingwen Zhang, Yongxin Wang, Chunting Wang, Wuming Guo, Xiaojiang Lu, Yongfeng Sui, Jibing Lan
Summary: The multi-layer Cr/CrxN coating demonstrated better mechanical, anti-corrosion, and anti-tribocorrosion performances in seawater compared to the two-layer Cr/CrxN coating. This improvement was attributed to the inhibiting effect on the synergistic interaction between electrochemical corrosion and mechanical wear.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Hongwei Zhang, Hongzhi Cui, Cheng Man, Feiya Liu, Kun Pang, Guoliang Ma, Hao Chen, Zhongyu Cui
Summary: The Ti-based composite coating of TiN + TiB/TC4 was successfully fabricated by laser cladding. The addition of BN promotes the in-situ formation of an elliptic TiN phase at the micron level and a fibrous TiB phase at the nanometer level, resulting in a new structure of TiN surrounded and pinned by coherent TiB. There was no obvious plastic deformation with the increase of TiN and TiB phases, and a dense TiO2-MoO3 oxide film was formed during tribocorrosion. The tribocorrosion rate was greatly reduced to a minimum of 246.93 +/- 14 μm/yr.
Article
Materials Science, Coatings & Films
Auezhan Amanov, Ruslan Karimbaev
Summary: The study demonstrates that UNSM technology has a beneficial effect on SiC coating, reducing the coefficient of friction and exhibiting different wear modes under different wear conditions. Additionally, UNSM technology can also extend the fatigue life of SiC coating.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Engineering, Civil
Xue-Qin Li, Guang-Chen Bai, Lu-Kai Song, Jie Wen
Summary: The proposed MACM approach combines the strengths of improved differential evolution algorithm and neural network model to improve the computing accuracy and simulation efficiency of fatigue reliability estimation for turbine rotor. Through the engineering case study of a typical turbine rotor, the method shows high efficiency and accuracy in considering material variabilities, load fluctuations, and model randomness.
Article
Engineering, Biomedical
Guo-Hua Zhao, Ragnhild E. Aune, Huahai Mao, Nuria Espallargas
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2016)
Article
Engineering, Biomedical
Guo-Hua Zhao, Ragnhild E. Aune, Nuria Espallargas
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2016)
Article
Engineering, Mechanical
J. A. R. Wesmann, N. Espallargas
TRIBOLOGY INTERNATIONAL
(2016)
Article
Engineering, Mechanical
J. A. R. Wesmann, N. Espallargas
TRIBOLOGY INTERNATIONAL
(2016)
Article
Engineering, Mechanical
A. H. Zavieh, N. Espallargas
TRIBOLOGY INTERNATIONAL
(2016)
Article
Engineering, Mechanical
A. H. Zavieh, N. Espallargas
TRIBOLOGY INTERNATIONAL
(2016)
Article
Materials Science, Coatings & Films
J. A. R. Wesmann, S. Kuroda, N. Espallargas
JOURNAL OF THERMAL SPRAY TECHNOLOGY
(2017)
Article
Chemistry, Physical
A. Tiwari, L. Dorogin, M. Tahir, K. W. Stoeckelhuber, G. Heinrich, N. Espallargas, B. N. J. Persson
Article
Engineering, Mechanical
A. H. Zavieh, N. Espallargas
TRIBOLOGY INTERNATIONAL
(2017)
Article
Chemistry, Physical
A. Tiwari, N. Miyashita, N. Espallargas, B. N. J. Persson
JOURNAL OF CHEMICAL PHYSICS
(2018)
Article
Engineering, Mechanical
S. Bernat, A. Brink, M. Lucas, N. Espallargas
JOURNAL OF TRIBOLOGY-TRANSACTIONS OF THE ASME
(2018)
Article
Engineering, Chemical
S. Bernat, S. Armada, N. Espallargas
Article
Engineering, Chemical
S. Bernat, S. Armada, N. Espallargas
Article
Chemistry, Multidisciplinary
Hamid Khanmohammadi, Wahyu Wijanarko, Sandra Cruz, Manuel Evaristo, Nuria Espallargas
Summary: In recent years, diamond like carbon (DLC) coatings doped with metallic elements have gained attention as a novel self-lubricating coating. These coatings exhibit improved mechanical properties and adhesion. Ionic liquids (ILs) are potential lubricant additives with thermal stability, non-flammability, high polarity, and low volatility, making them suitable for water-based lubricants. In this study, three different DLC coatings were deposited on stainless steel substrates and their friction performance in different lubrication conditions was investigated. The results showed that the doped coatings had better mechanical properties, with Ag-doped DLC coating demonstrating the best performance.
Review
Chemistry, Physical
Nora Nyholm, Nuria Espallargas
Summary: Carbon nanostructures have been proposed as potential candidates for a new generation of lubricant additives due to their excellent properties. This review surveys the literature on carbon nanostructures as lubricant additives and identifies dimensionality, structural integrity, and chemical interactions as important properties governing their tribological behavior.
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.