Showing papers in "Tribology International in 2022"

TL;DR: In this paper , the cooling lubrication mechanism and technical iteration motivation of minimum quantity lubrication (MQL) were initially analyzed, and a quantized comparative assessment of cutting force, cutting temperature, tool wear, and surface quality under enhanced environmentally friendly lubrication turning, including parts enhanced by nanoparticles, cryogenic medium, ultrasonic vibration, and textured tools, was performed.

TL;DR: In this article , the effects of lecithin on the electrophysiological properties of biolubricant (soybean oil) were investigated, and the influence of lecilithin mixing ratio on grinding performance was discussed.

TL;DR: In this paper , a transient thermomechanical sliding model for the contact between elastic-plastic asperities is established to analyze the contact behaviors of micro asperity in the sliding process.

TL;DR: In this paper , a novel study, applying ultrasonic vibration along with MQL and LCO2, is proposed to enhance the machinability of Ti-6Al-4V.

TL;DR: A fluid-structure coupling numerical model of an oil-jet lubricated cylindrical roller bearing (CRB) in a high-power gearbox is developed, in which the volume of fluid (VOF) method and slip mesh model are used as discussed by the authors .

TL;DR: In this article , the authors investigated the effect of slip ratio and contact stress on the evolution of material around the surface defect on the rail, and the defect being worn off after the test stop and leaving a remaining crack.

TL;DR: The microstructure, microhardness and high-temperature performance of the W-doped CoCrFeNiWx HEA coatings were investigated in this paper , where it was shown that the Wdoped HEAs are composed of a face-centered cubic (FCC) solid solution matrix with unmelted W phases and FCC/intermetallics eutectic structures.

TL;DR: In this paper , an electroplated diamond abrasive belt (EDAB) was used to grind Inconel718 and investigated its wear evolution and corresponding grinding surface integrity, and it was revealed that EDAB showed stable grinding performance, and the wear mechanism in initial, steady, and final wear stage was primarily micro cleavage fracture and adhesive wear, respectively.

TL;DR: In this article , a zwitterion polymer functionalized N-enriched porous carbon nanosheets were prepared via pyrolysis and etching of pyridine-coordinated polymer for [email protected] by growing the PEIS, which facilitates the formation of a stable protective carbon film over the worn surface via complicated tribo-chemical reaction.

TL;DR: In this paper, a hierarchical MXene@Ag hybrid was successfully prepared via an in-situ reduction, and the influence of the hybrid on thermal, mechanical, and tribological properties of epoxy resin (EP) was investigated systematically.

TL;DR: In this paper , the influence of [email protected] hybrids on thermal, mechanical, and tribological properties of epoxy resin (EP) composites was investigated systematically, and the synergistic reinforcing effects of MXene and Ag NPs for EP matrix were discussed systematically.

TL;DR: In this paper , the authors provide a comprehensive review of the recent progress in contact mechanics for tribological and contact damage-related problems, and conclude with future perspectives and major challenges to be addressed.

TL;DR: In this article , a double-liner bearing structure is designed, which can achieve a breakthrough in the performance of load increase, drag reduction, vibration decrease and noise containment of ships.

TL;DR: In this paper , the authors developed a vibration-based health indicator to monitor the gear surface degradation induced by gear wear progression, which can be used to reduce maintenance costs and minimize gearbox failures in wind turbines.

TL;DR: In this paper, a series of epoxy-based composites with high Ti3C2Tx MXene-content are successfully fabricated as the solid lubricant, which presents a dramatically reduced coefficient of friction (COF) to about 34% lower than that of the pure epoxy, which is as low as 0.39 at a normal loading of 5 N.

TL;DR: In this paper , the authors discuss the tribological impacts of liners based on the experiences of the authors and a review of the literature and present the results of experimental research using engine test benches and laboratory simulators.

TL;DR: In this paper, wear and friction of dry and lubricated aluminum-graphite composites and the transition between lubrication regimes were studied using principal component analysis (PCA) to find clusters in friction and wear data.

TL;DR: In this paper , the authors deal with the concerns of industrial demand for enhancing the machinability of Inconel 718 and propose sustainable cooling strategies, i.e., minimum quantity lubrication (MQL), electrostatic minimum quantity lubrication (EMQL), and liquid carbon dioxide (LCO 2 ), in combination with ultrasonic-assisted turning, are used to reduce the tool wear in the machining process.

TL;DR: In this article , wear and friction of dry and lubricated aluminum-graphite composites and the transition between lubrication regimes were studied using principal component analysis (PCA) to find clusters in friction and wear data.

TL;DR: In this article , the effect of different factors such as the number of water molecules, loading, surface roughness and sliding velocity via molecular dynamics simulation has been investigated for the synergistic mechanism involving the activities of both water and graphene.

TL;DR: In this paper , the impact of hybrid LN2-MQL on the machining of the tool's main cutting edge was analyzed and compared with a dry medium in perspective of in-depth analysis of tool flank wear, EDS mapping and intensity of tool wear.

TL;DR: In this article , the authors focused on the tribological behavior of 316 L stainless steel against 100 Cr6 alloy under various cooling environments and found that the combination of cryo and minimum quantity lubrication (MQL) cooling conditions are helpful in improving the tribology performance while minimizing material volume loss and wear rates.

TL;DR: In this article , a review of the state-of-the-art research of P-RTILs is summarized from the lubrication perspective, covering their synthesis, properties, lubricant-relevant mechanisms, and performance matrices.

TL;DR: In this article, the molecular dynamics method was used to simulate repeated nano-friction on a nickel-based single crystal (NBSC) superalloy, and the friction force, atomic displacement, wear scar morphology, subsurface defects, potential energy, and other aspects were comprehensively studied to understand the friction mechanism of NBSC during working conditions.

TL;DR: In this paper , the effect of Ag content on the microstructure, compositions, and wear resistance of micro-beam plasma cladded Ni60 coating was studied, and its influence on tribological properties were discussed.

TL;DR: In this paper , the molecular dynamics method was used to simulate repeated nano-friction on a nickel-based single crystal (NBSC) superalloy, and the friction force, atomic displacement, wear scar morphology, subsurface defects, potential energy, and other aspects were comprehensively studied to understand the friction mechanism of NBSC during working conditions.

TL;DR: In this article , a fluoropolymer was employed to modify the surface of MXene for synthesizing a fluorinated MXene, which could be dispersed very well in fluorine-containing lubricating oils based on the principle of "like dissolves like".

TL;DR: In this article , a series of epoxy-based composites with high Ti3C2Tx MXene-content are successfully fabricated as the solid lubricant, which presents a dramatically reduced coefficient of friction (COF) to about 34% lower than that of the pure epoxy, which is as low as 0.39 at a normal loading of 5 N.

TL;DR: In this paper , a turbulent mixed lubrication model of WLRBs was established by developing an extended average Reynolds equation and including turbulent, and its rationality was verified by experiments.

TL;DR: In this article, a simple electroplating and oxidation method was proposed to introduce two-dimensional ZnO nanosheets (ZnO NSs) between carbon fiber and poly(hexahydrotriazine)s (PHTs).