...Renjish Vijay; Aju Kumar V.N.; A. Sadiq; Sudeep U. Purpose The purpose of this study is to evaluate the thermal and tribological performance of silica and alumina sol–gel coatings under combined thermal and structural loading. Using finite element analysis ( FEA ) and experimental data from a pin...

... of high-nitrogen steel, which is expected to improve the wear resistance of high-nitrogen steel. Design/methodology/approach The CoCrNi and CoCrFeNi medium-entropy alloy (MEA) coatings were prepared on high-nitrogen steel substrate by laser cladding technology. The microstructure, phase composition...

... of aluminum alloys are the main factors that limit their applications. The purpose of this study is to obtain a composite coating with high hardness and lubricating properties by applying GO–PVA over MAO coating. Design/methodology/approach A pulsed bipolar power supply was used as power supply to prepare...

... alloy. Coatings Antiwear Ti6Al4V Adhesion Figure 5 shows the friction coefficient of Ti6Al4V and boride layers (T-5, T-10 and T-15) under 5 N and 10 N at 25°C. When the load was 5 N, the friction coefficient of Ti6Al4V increased rapidly to 0.62, then it slowly increased to 0.7 after...

...Rajesh Kumar; Satish Kumar; Deepa Mudgal Purpose The purpose of this paper is to investigate the erosion performance of high velocity oxy fuel- (HVOF) sprayed Al₂O₃–Cr₂O₃ composite coatings under silt slurry conditions. Design/methodology/approach...

...Bifeng Yin; Xuefeng Wang; Bo Xu; Gongyin Huang; Xin Kuang Purpose The purpose of this paper was to improve the frictional wear resistance properties of piston skirts caused by the low viscosity lubricant by studying the tribological performance of three novel coating materials. Design...

...Eryong Liu; Yuan Xue; Yaping Bai; Jibin Pu; Shuangming Du; Huiling Du Purpose The purpose of this paper is to improve the tribological properties of aluminum cylinder liner. Higher martensite contents were closely related to the higher hardness and excellent wear resistance of Fe-based coatings...

...Ming Yang; Zhengfeng Jia; Denghu Wei; Yunxia Wang; Xianjuan Pang; Jinming Zhen; Ran Zhang; Bo Yu Purpose The purpose of this paper is to investigate the tribological properties of carbonized polydopamine/reduced graphene oxide (CPDA/rGO) composite coatings. Design/methodology/approach CPDA/rGO...

...Jashanpreet Singh; Satish Kumar; S.K. Mohapatra Purpose This study/paper aims to investigate the erosion wear performance of Ni-based coatings [Ni-Cr-O and NiCrBSiFe-WC(Co)] under sand-water slurry conditions. Design/methodology/approach A high-velocity oxy-fuel (HVOF) process was used...

...Sarbjeet Kaushal; Satnam Singh Purpose The purpose of this paper is to study the effect of slurry erosion at different parameters on plasma sprayed Cr₃C₂ coated 13Cr4Ni turbine steel and compare the results of coated steel with bare steel. Design/methodology/approach...

...Guotao Zhang; Yanguo Yin; Ting Xie; Dan Li; Ming Xu; Congmin Li Purpose This paper aims to obtain high mechanical and good tribological properties of epoxy resin-based coatings under dry friction conditions. Design/methodology/approach Bonded solid lubricant coatings containing Kevlar fibres...

... of the mechanical seal was found to be the most effective method to reduce frictional coefficient, frictional force and seal face temperature, thereby increasing the life time of mechanical seal. Design/methodology/approach In this study, two coatings, diamond-like carbon (DLC) and tungsten carbide/carbon (WC/C...

...Nasser Eddine Beliardouh; Corinne Nouveau; Hakan Kaleli Purpose The purpose of this technical paper is to investigate the friction and wear behavior of inexpensive and durable cutting tools, developed for wood machining using duplex treatment. Design/methodology/approach Cr–(WC–Co) coatings...

... the contacting bodies when temperature rises. Results indicated that the coated film on the thermally treated surfaces that is reflected as white patches on the SEM images is a function of the antiwear additives contribution; it is also shown to have positive influence on the friction and wear performances...

...Luciano Castro Lara; Henara Costa; José Daniel Biasoli de Mello Purpose – This paper aims to analyse the influence of the thickness of different layers [diamond-like-carbon (DLC) and chromium nitride (CrN)] on the sliding wear behaviour of a multifunctional coating on AISI 1020 substrates. When...

...Surajit Purkayastha; Dheerendra Kumar Dwivedi Purpose – This paper aims to deal with the study of effect of cerium oxide (CeO₂) modification on the sand slurry erosion resistance of Ni – tungsten carbide (WC) coatings. Design/methodology/approach – Flame-sprayed conventional...

... sliding wear resistance of the coatings was tested as a function of applied load and sliding time, and wear mechanisms were elucidated by analyzing wear surfaces. Findings The experimental results revealed an excellent metallurgical bond between the composite coating and substrate. The coating...

... tribometer. Wear mechanisms in the specimens are discussed based on microscopic study of wear surface characteristics. Findings The experimental results revealed an excellent metallurgical bond between the composite coating and substrate. Hardness was increased from HRb 6.6 in the substrate to HRb 65...

...Jorge Seabra; Raquel Bayón; Cristina Zubizarreta; Roman Nevshupa; Juan Carlos Rodriguez; Xana Fernández; Unai Ruiz de Gopegui; Amaya Igartua Purpose The aim of this work is the study the tribological behaviour and tribocorrosion resistance of newly developed multilayer PVD coatings Cr/CrN and CrN...

...Dariusz Ozimina; Monika Madej; Michał Styp‐Rekowski Purpose The purpose of this paper is to determine the appropriate conditions for the chemical deposition of Ni‐P‐Al₂O₃ composite coatings, deposited on metalic matrix. Design/methodology/approach Auto catalytic reduction...