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The effect of moisture on abrasive wear of urethane-containing elastomers Wear (IF 5.0) Pub Date : 2024-04-23 Valeriy Yu. Senichev, Eduard V. Pogoreltsev, Vladimir N. Strelnikov
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Theoretical modeling of concrete friction-impact deterioration using water-borne sand abrasion experiment Wear (IF 5.0) Pub Date : 2024-04-20 Jin Xia, Jie-jing Chen, Kuihao Liu, Yu Peng
To explore the influence of impact angle on concrete abrasion deterioration under water-borne sand, a theoretical model for friction-impact deterioration was developed. This model innovatively proposes the inhibition effect of the normal impact action on the tangential friction mass loss and the facilitation effect of the tangential friction action on the normal impact mass loss to rationally explain
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Effect of different chemical conversion coatings on the tribological performance of cylindrical thrust roller bearings under conditions of dry friction and solid lubrication Wear (IF 5.0) Pub Date : 2024-04-20 Xiao Xu, Yimin Zhang
The chemical conversion coating technology, as a surface technique, can effectively reduce surface wear. In this study, the chemical conversion coating technique was implemented to acquire three distinct coating variations on the surface of cylindrical thrust roller bearings (CTRBs). Nanoindentation tests were conducted to analyze the mechanical features of the coatings, specifically targeting the
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Comparative study on wear properties for rubber elastomers under different downhole condition Wear (IF 5.0) Pub Date : 2024-04-16 Zhangyu Qiao, Yanbao Guo, Ran Wei, Zheng Zhang, Bin Wang, Deguo Wang
As the critical component of the solid expandable tubular (SET), the wear problem of rubber elastomer has been an increasing concern during operation in downhole working condition. Therefore, this research conducted the reciprocating sliding wear tests of nitrile rubber and fluoro rubber against N80 casing steel at 20 °C and 110 °C in different downhole mediums (dry, water, crude oil). The results
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Nanofiller tribochemical functionality is not sufficient to achieve ultralow wear of PTFE Wear (IF 5.0) Pub Date : 2024-04-16 Wei Sun, Jiaxin Ye, Yunlong Jiao, Xiaojun Liu
The functionality of nanofillers in inducing favorable tribochemistry is considered crucial for achieving ultralow wear in polytetrafluoroethylene (PTFE) composites. However, it remains unclear if nanofillers need to meet additional criteria beyond tribochemical functionality. In this study, we investigated the wear performance of PTFE composites filled with nano-sized zero-valent iron (ZVI) and alumina
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Tribo-corrosion-fatigue behaviors of the parallel wires of main cable in the suspension bridge Wear (IF 5.0) Pub Date : 2024-04-15 Hailang Chong, Bo Wang, Dagang Wang, Jihong Ye, Chenchen Li, Yuewei Sun, Xiaoman Shen, Dekun Zhang
The suspension bridge in service is subjected to the coupling effects of dead load, vehicle load, wind load and corrosive environment. These factors cause the tribo-corrosion-fatigue behaviors of parallel steel wires of main cable, which seriously affect the load-bearing safety of the main cable. Therefore, it is of great significance to investigate tribo-corrosion-fatigue behaviors of steel wires
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Tribological properties of polyaromatic organics as lubricating grease Wear (IF 5.0) Pub Date : 2024-04-14 Ling Pan, Jinliang Lian, Yunli Wu, Jinyang Guo
The tribological properties of polyaromatic organics (PE) as lubricating grease additives are studied by simulations and experiments. Molecular Dynamics (MD) simulations are used to simulate the mechanical properties of four kinds of polyaromatic organics (2P1E, 3P2E, 4P3E, and 5P4E) with different aromatic ring numbers and a mass fraction under 300 MPa and 5 m/s relative shear velocity of the two
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Modelling the material removal obtained using a pneumatically configurable polishing tool subjected to a reciprocating linear feed Wear (IF 5.0) Pub Date : 2024-04-12 Onkar Chawla, Tarun Verma, Sunil Jha
A nanofinishing technique - Pneumatically Configurable Polishing (PCP) process can be used for producing surface roughness of the order of a few nanometers on surfaces. It is a deterministic polishing process which employs pneumatic pressure for precise control of finishing forces across the polishing spot. The material removal rate is an important characteristic for determining the final surface generated
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Performance of a cast-iron and WC Co-free iron-based coated disc under mild and severe brake conditions Wear (IF 5.0) Pub Date : 2024-04-10 S. Candeo, F. Varriale, A.P. Nogueira, S. Gialanella, G. Straffelini
The deposition of hard coatings on the surfaces of brake discs can significantly decrease the wear and related particulate matter of brake materials. Considering that brake materials, along with low emissions, have to guarantee excellent brake performance, the present work investigates the brake performance of a Co-free WC–FeCrAlY cermet-coated disc. The coating was deposited by the High-Velocity Oxygen
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An investigation revealed the influence of the different magnitude and duration of the current-impact on the wear property to the carbon skateboard/stainless steel contact Wear (IF 5.0) Pub Date : 2024-04-10 Xin-long Liu, Yi-ting Zheng, Xin Guan, Guo-hong Deng, Qian Xiao, Ming-sheng Gao, Dan Zhang, Hai-yang Cao, Ze Wang, Yong Cao, Hong-yu Wu
Collector-conductor rail systems play a crucial role in facilitating the regular functioning of intercity trains. The repeated acceleration and deceleration of trains result in a continuous and significant increase in current, leading to a power-current impact at the contact interface of the boot rail system within a collector-conductor rail system. The objective of this study was to elucidate the
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Analytical description of the wear process using a multi-stage contact fractal approach Wear (IF 5.0) Pub Date : 2024-04-09 Xin Yu, Yunyun Sun, Mingming Liu, Shijing Wu
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Influence of arc discharge on the temperature and wear behaviors of the contact strip in pantograph-rigid catenary systems under AC conditions Wear (IF 5.0) Pub Date : 2024-04-07 Yan Hu, Panpan Huang, Chun Cheng, Miaomiao Zhang, Ran Ma
A block-on-ring tester with AC was used to conduct a series of experimental tests to gain further insights into the severe wear of the carbon strip in subway pantograph-rigid catenary systems. During the test, the arc discharge energy, the temperature of the contact strip, and the wear rate of the contact strip were measured. The experimental results indicate that the arc discharge has a great influence
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Current-carrying friction behavior and wear mechanism of Ag coatings by rotary spray deposition Wear (IF 5.0) Pub Date : 2024-04-07 Jiebin Du, Mingchong Lu, Jiamin Fang, Wei Li, Dexin Chen
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Surface modifications to reduce wear in hot extrusion of copper Wear (IF 5.0) Pub Date : 2024-04-06 Alexander Thewes, Phillip Marvin Reinders, Hanno Paschke, Tristan Brückner, Daniel Templin, Stefan Lechner, Sören Müller, Michael Paulus, Christian Sternemann
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Fretting wear behaviors of Cr-coated Zr–1Nb alloy cladding tube mated with Zr-4 alloy dimple under different tangential displacements Wear (IF 5.0) Pub Date : 2024-04-05 Jialing Li, Huoming Shen, Yuxing Wang, Zhenxun Peng, Juan Liu, Qisen Ren, Heng Huang, Yehong Liao
The fretting wear behaviors and wear mechanism of the Cr-coated Zr–1Nb alloy cladding tube mated with Zr-4 alloy dimple were investigated under different tangential displacements. With the increasing tangential displacement, the fretting running status changes from mixed fretting regime to gross slip regime, the friction coefficient increases first and then decreases, and the removed material volume
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Experimental study of the wear behavior of tunnel boring machine disc cutter ring under Fe-based coatings Wear (IF 5.0) Pub Date : 2024-04-04 Laikuang Lin, Jun Zeng, Jie Fu, Dun Wu, Huichao Cheng, Yimin Xia
The extremely high wear rate of disc cutter rings of tunnel boring machines (TBMs) limits their tunneling efficiency and increases their cost. The surface properties of the cutter ring significantly affect the wear rate. In this study, the effect of coatings on the cutter wear rate and wear mechanism under actual working conditions was investigated by comparing the wear test results of three different
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Wear mechanism and underground structure of Inconel 625 nickel-based alloy sliding against WC-Co in seawater Wear (IF 5.0) Pub Date : 2024-04-04 Jiaye Yao, Guanghui Zhao, Xiaofeng Niu, Ruifeng Zhang, Jian Zhang
Inconel 625 nickel-based alloy has excellent fatigue strength and corrosion cracking resistance, making it widely used in marine oil and gas transmission composite pipes. However, the wear and subsurface deformation mechanisms of this material in seawater have not been better understood. This study aims to explore the wear mechanism and subsurface deformation behavior of Inconel 625 nickel-based alloy
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Investigation of friction and wear behavior of titanium alloy-diamond based on the morphology evolution of single abrasive clusters Wear (IF 5.0) Pub Date : 2024-04-04 Jing Zhao, Lai Zou, Yingjie Liu, Wenxi Wang, Zhiyuan Zhang
This study investigates the wear mechanism of single diamond clusters during flexible scratching of titanium alloys. High-temperature rotary friction and wear tests were conducted using a flexible abrasive tool with bonded single diamond clusters. The study examined the impact of normal loads, rotation speeds, and temperatures on cutting ability and wear in titanium alloys. The percentage of abraded
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Polymer composite coatings subjected to sliding wear under simulated lunar temperature and dust conditions Wear (IF 5.0) Pub Date : 2024-04-02 Kian Bashandeh, Vasilis Tsigkis, Pixiang Lan, Andreas A. Polycarpou
Due to the detrimental effect of lunar dust on tribological components, it is imperative to develop bearing materials and surfaces which can survive and mitigate dust at the interface while operating under lunar environmental conditions. This issue is poised to become more significant in the near future, with lunar exploration evolving beyond the short probing missions of the Apollo era. Therefore
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Wear behavior of ultrafine WC-Co cemented carbide end mills during milling of Inconel 718 Wear (IF 5.0) Pub Date : 2024-04-02 Boxiang Wang, Zhenhua Wang, Zengbin Yin, Juntang Yuan
Two innovative ultrafine cemented carbide end mills, denoted C1 and C2, were synthesized through spark plasma sintering, featuring compositions of WC-8Co-0.4VC-0.4CrC and WC-40(Ti,W)–8Co-0.4VC-0.4CrC, respectively. Their wear behaviors were delved into during the precision machining of Inconel 718, and distinct disparities in wear evolution and tool longevity were unveiled. C1 exhibits exceptional
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Performance and wear mechanisms of polycrystalline diamond tools with different diamond grains in milling Cf/SiC composites Wear (IF 5.0) Pub Date : 2024-04-02 Jiaming Jiang, Wenxiang Zhao, Ting Sun, Fei Cheng, Lijing Xie, Xibin Wang
Carbon fiber-reinforced ceramic matrix composites (Cf/SiC) are widely used in the aerospace industry, but severe tool wear and premature tool failure exist during the machining process. Polycrystalline diamond (PCD) tools have promising applications in machining composites due to their excellent mechanical properties. This paper compares the performance of three PCD tools with different grain sizes
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Wear at an incipient ploughing–cutting transition Wear (IF 5.0) Pub Date : 2024-04-02 Rosario Capozza, Kevin J. Hanley
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Sliding wear resistance of Fe–30Mn–8Al–1.2C steel modulated by κ–carbide Wear (IF 5.0) Pub Date : 2024-03-28 Yihao Tang, Heyang Shi, Suotao Wang, Hongpu Yue, Pengfei Ji, Changxin Liu, Junsong Zhang, Xinyu Zhang
The hardness, elastic modulus, and plasticity/toughness of Fe–30Mn–8Al–1.2C steel are significantly influenced by κ–carbide. This study investigates the wear behavior of solution steel without κ–carbide and aged steel with κ–carbide through sliding wear tests. The dominant wear mechanism of Fe–30Mn–8Al–1.2C steels shifts from microcutting/microploughing at low loads to microfatigue wear at high load
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Insight into the tribological performances of coconut shells as a potential natural water lubrication material Wear (IF 5.0) Pub Date : 2024-03-27 Xingxin Liang, Muyu Han, Ziang Xu, Ruyi Wang, Zhiyong Yang
To better understand the tribological performance of coconut shell and to demonstrate its potential as a wear-resistant material for use in a water-lubricated environment, the microstructure of coconut shell was hereby characterized, and its hardness and water absorption properties were correspondingly measured. The tribological characteristics of coconut shells rubbing against a ZrO2 ceramic ball
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Effect of dislocation defects on the nano-scratching process of 4H–SiC Wear (IF 5.0) Pub Date : 2024-03-26 Yixiang Wang, Haiyang Ding, Ningchang Wang, Yuxiang Huang, Yiqing Yu, Hui Huang, Nian Duan
To investigate the influence of defects on the damage mechanism of 4H–SiC, this study primarily conducted molecular dynamics simulations of a single diamond abrasive indentation process and carried out subsequent nanoindentation experiments on 4H–SiC samples. The simulation and experimental results were compared, and the force–displacement curves showed consistent trends. On this basis, the scratching
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Wear mechanism of alloy steel under dicationic liquid lubricant with IL-grafted graphene oxide as an additive Wear (IF 5.0) Pub Date : 2024-03-26 Yeonjin Jung, Jagdeep Kaur, Edward L. Quitevis, Chang-Dong Yeo
A dicationic liquid (DIL) was synthesized and used as a base lubricant. IL-grafted graphene oxides (MGO) were manufactured as an additive to the DIL lubricant. Then, the MGO/DIL was applied as a lubricant for the surface contact between a stainless steel ball and bearing steel. The tribological performance of MGO/DIL was measured and compared to those from a monocationic liquid (MIL) based lubricant
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Observation of anomalous low friction and wear behavior of polyimide in alkaline environment under high load Wear (IF 5.0) Pub Date : 2024-03-24 Hongbo Zou, Bin Lin, Xiaofeng Zhang, Zhenyang Wang, Shuai Yan
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Effect of interference magnitude on fretting wear and fatigue strength of scaled press-fitted railway axles Wear (IF 5.0) Pub Date : 2024-03-22 Xiong Chen, Jing Wang, Liantao Lu, Lang Zou, Tian Xu, Yihui Dong, Hai Zhao, Dongfang Zeng
Railway axles represent a typical example of interference fit structures that are vulnerable to fretting fatigue induced by rotational bending loads. This study investigated the influence of interference magnitude on the fretting wear and fatigue of scaled press-fitted railway axles. In this study, the fretting fatigue strength was tested at three interference magnitudes within the standard range,
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Computational assessment of ratcheting in rail-wheel contact with solid contaminant Wear (IF 5.0) Pub Date : 2024-03-22 Angelo Mazzù, Davide Battini, Nicola Zani
A numerical method for the fast evaluation of ratcheting in solid-contaminated contact between rollers was developed. The physical problem was simplified with a plane-strain half-infinite body, with a distribution of pressure and tangential stress on the contact surface obtained by considering the presence of evenly spaced solid contaminant particles between the contacting bodies. Such a distribution
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Effect of laser shock peening without coating on fretting wear behavior of GH4169 superalloy at high-temperature Wear (IF 5.0) Pub Date : 2024-03-20 Yanqing Yu, Tianbing Ma, Jianen Gong, Taili Chen, Liucheng Zhou, Zhenbing Cai
Improving the high-temperature wear resistance of aero-engine components is critical. Laser shock peening without coating (LSPwC) seems to have more potential because of lower morphology changes and simpler processing compared with conventional laser shock peening (LSP) techniques. The influence of LSPwC process and test temperature on the fretting wear behavior of GH4169 superalloy for 2 × 10 cycles
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A wear testing method of straight blade tools for Nomex honeycomb composites machining Wear (IF 5.0) Pub Date : 2024-03-20 Enlai Jiang, Qizhong Yue, Jie Xu, Chuanrong Fan, Ge Song, Xinman Yuan, Yuan Ma, Xinlu Yu, Peilian Yang, Pingfa Feng, Feng Feng
Ultrasonic vibration machining (UVM) with a straight blade tool (SBT) is currently an efficient process for part manufacturing of Nomex honeycomb composites (NHCs) in the aerospace industry. To solve the wear evaluation problem of SBT, this study focused on the failure characteristics of tool edge blunting, which was different from that of traditional metal-cutting tools. The edge radius measured by
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The influence of asymmetric rail cant on rail corrugation in a small-radius curve section Wear (IF 5.0) Pub Date : 2024-03-19 Yannan Zhao, Caiyou Zhao, Yuxuan Wang, Ziheng Zeng, Ping Wang
A suitably designed rail cant can improve the wheel-rail alignment, effectively reduce the wheel-rail contact pressure and reduce the wheel-rail wear. However, the rail base cant has rarely been specifically designed for suppressing rail corrugation. Furthermore, no studies have yet been conducted on using different inner and outer rail cants in small-radius curve sections from the perspective of suppressing
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Self-lubrication of high-entropy carbide matrix composites over a wide temperature range: The synergistic effect of silver and molybdenum component Wear (IF 5.0) Pub Date : 2024-03-15 Zongxiao Zhu, Wenbang Chen, Zhiao Bian, Qichun Sun, Min Zheng, Shengyu Zhu, Jun Cheng, Jun Yang
High-entropy carbide ceramics are promising candidates for the structural applications in aerospace and aviation fields. However, theirs tribological properties still need to be further improved. Inspired by the toughening effect of Ag and the tribo-chemical reactions generated lubricating phases between Ag and the constituent elements of ceramics, self-lubricating high-entropy carbide composites over
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The tire–road contact: A mechanical mixing seen as a shear-induced diffusive process Wear (IF 5.0) Pub Date : 2024-03-15 Kévin Daigne, Guilhem Mollon, Sylvie Descartes, Nicolas Fillot, Romain Jeanneret-Dit-Grosjean, Frederic Biesse, Antoine Perriot
In this paper, the mechanical mixing of road minerals and tire tread rubber is studied experimentally and numerically. A rubber specimen on an experimental set-up is used. SEM observations show that particles on the surface are composed of an intimate mixture of rubber compounds and minerals. A longitudinal section is also observed, showing that the minerals have migrated into the surface. This phenomenon
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The impact of synergistic action of methacrylic acid/zinc oxide/carbon nanotubes on metal Friction and wear Wear (IF 5.0) Pub Date : 2024-03-15 Deshang Han, Lin Wang, Shoufeng Zhang, Quanzhong Zhang, Chuansheng Wang, Wei Li
The continuous operation of essential refining equipment, internal mixers, leads to wear on their end faces, resulting in an increased gap between the mixer chamber and the end face. This, in turn, causes material leakage, reducing mixing efficiency and adversely impacting rubber performance. Therefore, investigating metal wear on the mixer's end face during the mixing process is essential. Scholars
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A model of erosion rate prediction for component with complex geometry based on numerical simulation Wear (IF 5.0) Pub Date : 2024-03-14 Yu Zhang, Yun-Fei Jia, Xin-Wei Sun, Zhen-Hua Fang, Jian-Jun Yan, Cheng-Cheng Zhang, Xian-Cheng Zhang
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Emission and properties of airborne wear particles from train brake friction materials based on novolac phenolic resins and butadiene rubbers Wear (IF 5.0) Pub Date : 2024-03-13 Yurii Tsybrii, Oleksii Nosko, Izabela Zglobicka, Michal Kuciej
The emission of airborne particulate matter from a train brake depends on the formulation of its friction material. This study investigates the emission and properties of wear particles from train brake friction materials based on straight or resorcinol-modified novolac phenolic resin and nitrile or styrene butadiene rubber used as binding ingredients. The wear particles are generated by a pin-on-disc
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Improving wear and corrosion resistance of U71Mn rail steel subjected to laser in-situ fabrication of Fe based Cr–V coatings Wear (IF 5.0) Pub Date : 2024-03-11 Yuling Yang, Yingxin Xin, Hongnan Chen, Zhenyu Liu, Bo Wang, Hongchao Qiao, Erlin Zhang
With purpose of improving wear and corrosion resistance of U71Mn railroad switch, Fe based Cr–V coating was designed and in-situ fabricated on the surface of U71Mn rail steel using laser alloying technology. The phase constituents, effect of V content on the grain size, the microstructure, wear and corrosion resistance were investigated. Grain size refinement effect was observed due to more content
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Low and high temperature effects on friction and wear performance of Cr-plated cylinder liner Wear (IF 5.0) Pub Date : 2024-03-11 Zukai Zhao, Yan Shen, Ye Liu, Chuanfei Xing, Jie Liu, Junjing Fan, Jiujun Xu
Cr-plated cylinder liners with good wear and corrosion resistance as well as high strength are suitable for application in low-carbon fuel engines. A reciprocating friction and wear tester was used to measure the friction and wear performance of the Mo-sprayed piston ring and Cr-plated cylinder liner at low and high temperatures. For the low temperature conditions from −20 °C to 20 °C, the worn surface
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Quantitative prediction of wear failure based on dissipative methodology under dry friction Wear (IF 5.0) Pub Date : 2024-03-09 Haoran Liao, Ying Liu, Hongju Li, Xiang Zhao
The evaluation and prediction on failure of friction pair are important for improving equipment reliability and life span. In engineering practice, researchers often determine the severe-wear stage by monitoring changes in wear and the friction coefficient. However, existing criteria for evaluating the wear process are nebulous, leading to the ambiguous relationship between the measured parameters
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Influence of different wet-blasting pressure on the surface integrity and tool cutting performance of hybrid CVD-TiN/TiCN/α-Al2O3/TiN coated tools Wear (IF 5.0) Pub Date : 2024-03-09 Han Chen, Yongguo Wang, Jianliang Jiao, Chang'an Zhou, Zhuopeng Tan, Zhiqiang Zhong, Lirong Huang, Yong Peng
This paper investigates the effect of wet-blasting pressure on the surface integrity and tool cutting performance of hybrid CVD-TiN/TiCN/α-AlO/TiN coated tools. The hybrid TiN/MT-TiCN/α-AlO/TiN multilayer coating was deposited on the surface of the cemented carbide inserts by chemical vapor deposition (CVD) technique. Then the coated inserts were subjected to wet-blasting by aluminum oxide with varying
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Effect of boron addition on the microstructure and wear resistance of laser beam directed energy deposited high chromium white irons Wear (IF 5.0) Pub Date : 2024-03-09 Chengbo Zhu, Ian Fordyce, Shi D. Sun, Murugesan Annasamy, Daniel Fabijanic, Ken Short, Anna Paradowska, Martin Leary, Milan Brandt, Mark Easton
There is a demand for alloys produced by laser beam directed laser deposition (DED-LB) with better wear resistance than the traditionally manufactured alloys. In DED-LB of high chromium white iron (HCWI), the refined carbides at the micron scale can lead to inferior wear performance than the cast alloy of the same composition. In this study, various concentrations of FeB powder were mixed with HCWI
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Effect of HVOF spray coating on the tribological surface of onshore gate valves Wear (IF 5.0) Pub Date : 2024-03-08 Diógenes Barbosa Teles, Victor Velho de Castro, Mariana dos Reis Tagliari, André João de Souza, Célia de Fraga Malfatti
Gate valve is one of the most common design concepts in onshore Oil & Gas installations. This equipment is composed of a wedge-shaped obturator that performs linear sliding movements during activation. Fluid sealing is achieved through metallic contact between the surfaces of the gate and seat components. Metal surfaces are commonly hardened by heat treatment or coated with Stellite 6 alloy by plasma-transferred
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Influence of HAZ microstructure on RCF under twin-disc test of a flash-butt welded rail Wear (IF 5.0) Pub Date : 2024-03-07 Henrique Boschetti Pereira, Edwan Anderson Ariza Echeverri, Luiz Henrique Dias Alves, Kazim Yildirimli, Roger Lewis, Hélio Goldenstein
A new twin-disc test was performed using discs containing all microstructures of the heat-affected zone (HAZ) of flash-butt welded rails. It was observed that the lower hardness regions (spheroidized cementite in a ferritic matrix) at the HAZ boundary underwent a local deformation, generating valleys and reproducing a common defect type observed in rail welds: double squat-like defect. Longer crack
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Rolling–sliding wear and damage behaviors of 304L stainless steel laser cladding on a damaged wheel tread under high ambient temperature conditions Wear (IF 5.0) Pub Date : 2024-03-07 Chenggang He, Gang Zou, Haiqiao Liu, Xinji Wang, Yixun Xu, Jihua Liu, Siuming Lo
To prolong the service life of wheels, damage to wheel tread was repaired locally by laser cladding. However, wheels in service in open environments are subject to high ambient temperatures, especially in the southern coastal areas of China, and the repair effects have not yet been verified. Therefore, in this study, laser cladding was used to clad 304L stainless steel powder on a damaged wheel tread
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Improving surface finish and wear resistance of electroless nickel plating using flexible abrasive tool Wear (IF 5.0) Pub Date : 2024-03-07 Mayank Kumar, Ajay Sidpara, Vikranth Racherla
Electroless nickel plating has a variety of useful properties, including high hardness, high stability, and better corrosion and wear resistance when compared with the stainless steel substrate used in the present work, which make it useful in different fields such as aerospace, optics, defence, etc. However, these applications require very high level of surface finish. This work presents the finishing
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A frequency-domain simulation method for the evolution of rail corrugation in curves Wear (IF 5.0) Pub Date : 2024-03-07 Gong Cheng, Qingjie Liu, Xinsheng Lai, David J. Thompson, Qingsong Feng, Xiaoyan Lei
Rail corrugation remains a major problem in many railways and metros, leading to high noise and vibration levels as well as potential damage to the track and vehicle. A frequency domain simulation method is proposed for the evolution of the rail surface roughness, which can simulate the formation and development of rail corrugation in curves. A coupled vehicle-track dynamic model is established in
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Hardfacing of thermite welded rail by flux-cored arc welding Wear (IF 5.0) Pub Date : 2024-03-07 Hein Zaw Oo, Prapas Muangjunburee
The surface defects on the service railway's thermite weld must be repaired. Repairing procedures of thermite weld surface defects should be cost-effective, safe, and easy in the field. Hardfacing is the most effective method for restoring thermite-welded rail head. Four conditions were investigated using two types of hardfacing alloys under different shielded gases during the FCAW process: single
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The development of wear characteristics of the picking spindle hook teeth based on the discrete element method Wear (IF 5.0) Pub Date : 2024-03-07 Chengcheng Zhang, Xiuqing Fu, Anhua Ren, Yaoheng Liu, Jinran Lin, Hongwen Zhang, Zhiwen Jin, Fei Li, Xingyu Wang, Xuanwei Zhang
In this study, samples of worn spindle hook teeth were collected under different field working times to investigate their loss of ability to pick seed cotton owing to wear failure of the geometric structure. The wear characteristics of the surface of the hook teeth were tested and analyzed, and the development process of the wear region and the average value of the wear depth were obtained. This research
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Wear performance of Ni-WC composites and heat-damage behaviour of WC particle during vacuum-induction melting process Wear (IF 5.0) Pub Date : 2024-03-07 Kuangxin Luo, Hao Ma, Jiayi He, Jing Lu, Jiayi He, Ning Wu, Chang Li, Yimin Li, Fenghua Luo
Ni-WC composites were prepared by vacuum-induction melting (VIM). A ball-on-disc wear test was performed using an SiN ball as a friction pair to study the wear performance of the composites. The effects of WC particle size (average particle size of 68 μm and 23 μm) on the mechanical properties of the composites and the heat-damage behaviour of WC particles during the melting process were investigated
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Wear behavior of HVOF sprayed cobalt-based composite coatings reinforced with Cr3C2 Wear (IF 5.0) Pub Date : 2024-03-02 Alejandra Islas Encalada, Sima A. Alidokht, Navid Sharifi, Pantcho Stoyanov, Mary Makowiec, Christian Moreau, Richard R. Chromik
Metal matrix composites are widely used to improve the wear resistance of materials, and, among these composites, WC-Co and CrC-NiCr (metallic binders) are the most common systems used for thermally sprayed applications. On the other hand, metallic coatings such as cobalt-based alloys are also used for high temperature and wear resistant applications. Among the cobalt-based alloys, Stellite-6 shows
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Fretting fatigue tests on 6201-T81 aluminum alloy conductor wires at room temperature and 75 °C Wear (IF 5.0) Pub Date : 2024-03-01 Miguel A. Garcia, Remy Kalombo Badibanga, José Alexander Araújo, Jorge L.A. Ferreira, Cosme Roberto Moreira da Silva
The aim of this work was to conduct a test campaign to investigate the effect of temperature on the fretting fatigue life of aluminum alloy 6201-T81 wires taken from All Aluminum Alloy Conductors (AAAC) 900 MCM. To this end, fretting fatigue tests were conducted at room temperature (25 °C) and 75 °C. A three actuators fretting fatigue rig was upgraded with a heating system to allow the tests at elevated
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Plasma nitrided 65Mn steel: Microstructure, tribocorrosion and electrochemical properties and DFT calculation Wear (IF 5.0) Pub Date : 2024-02-29 Yuling Lu, Yuxing Peng, Zhiyuan Shi
To improve the nitrogen-expanded crystalline structure, tribological and anti-corrosion properties in industrial field, nitrogen atoms were incorporated into 65Mn steel by plasma nitriding. In this study, 65Mn steel was processed using a plasma nitriding method at 600 °C for the improvement of tribocorrosion resistance. The structural evolutions, chemical elements and chemical bonds of obtained nitrided
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A study on improving friction and wear performance of bearing bush in radial piston hydraulic motor Wear (IF 5.0) Pub Date : 2024-02-29 Ying Li, Xueshi Cui, Jin Zhang
The radial piston hydraulic motor is widely used due to its ability to provide high torque output and stable speed control. However, it exhibits poor lubrication performance in low-speed, heavy-load conditions. Specifically, the friction and wear performance of the piston-roller friction pair directly affect the motor's starting torque, operational efficiency, and service life. To address the friction
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Wear particle matter emission of rubber reinforced by graphene and carbon nanotube hybrid fillers against a rolling-contact concrete surface Wear (IF 5.0) Pub Date : 2024-02-28 Junhao Qu, Ruilin Wang, Feihong Huang, Haibo Huang, Rui Ren, Yanjun Wang, Yan Ding, Yonggang Wang
Rubber reinforced by nanofillers has high mechanical and frictional properties and has been considered a promising tire material for future applications. However, due to its potential environmental risks, particulate matter emission induced by the wear of this tire material should be evaluated. In this study, the wear particulate matter (WPM) induced by tire rubber reinforced by graphene (Gra) and
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Rolling contact fatigue studies on AISI 4140 steel under formulated lubrication conditions with nano graphene additives Wear (IF 5.0) Pub Date : 2024-02-27 M.R. Ranju, P.M. Abhilash, D. Kesavan
This investigation primarily intends to formulate a graphene nano lubricant with various concentrations of graphene additive, then experimentally assess and compare their impact on rolling contact fatigue (RCF) performance of AISI 4140 steel under pure rolling conditions. After formulation, various other parameters including kinematic viscosity, dispersion stability, aggregation behaviour, and thermal
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Synergistic mechanism of the fretting wear resistance of Fe2O3/Ag nanostructured coatings prepared by sliding friction and magnetron sputtering Wear (IF 5.0) Pub Date : 2024-02-27 Xichang Shang, Yilong Liang, Peng Wang, Yuzhong Wu
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Orientation-dependent plastic flow in nanoscratching of copper surfaces Wear (IF 5.0) Pub Date : 2024-02-26 Weili Liu, Beibei Jiang, Qing Lin, Shilei Wu, Ran Yang, Zhanfeng Wang
The characterization of frictional behavior in ductile metals is a crucial aspect of materials science, as it relates to the plastic deformation of the material. However, due to the intricate dislocation evolution at the submicron/nanometer scale, the isolation of the basic plastic mechanisms remains challenging. In this study, nanoscratching technology is employed to investigate submicron/nanometer-level
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Investigating the load and temperature-dependent dry sliding wear performance of Al–12Ce alloys with Si and Mg additions Wear (IF 5.0) Pub Date : 2024-02-25 Rahul Gope, Dheeraj K. Saini, Sourav Ganguly, Animesh Mandal
The current study investigates the effect of load and temperature on the wear characteristics of gravity-cast Al–12Ce, Al–12Ce-X alloys (where X = 4Si, 0.4Mg, and 4Si+0.4Mg), and commercial A356 alloys at 5, 10, and 20 N; and at 25, 100, and 200 °C newly fabricated for diesel engine applications. The addition of 4Si and 0.4Mg increased the Al–12Ce alloy's hardness and decreased the volumetric wear
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Interaction of erosion and corrosion on high-strength steels used for marine dredging engineering Wear (IF 5.0) Pub Date : 2024-02-20 Yunze Xu, Qiliang Zhang, Wubin Ren, Menghu Wang, Hao Chen, Xiaohui Zou, Xinjun Sun, Yi Huang
In this work, the erosion–corrosion performances of three high-strength steel samples: high manganese austenitic steel (HMnS), dual-phase steel (D-PS), and martensitic steel (MS), which are potentially used to construct marine dredged pipelines were investigated in comparison to the Q235 carbon steel. The corrosion-enhanced erosion (C-E) and erosion-enhanced corrosion (E-C) were electrochemically studied