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Coupling effect of boundary tribofilm and hydrodynamic film

open access: yesCell Reports Physical Science, 2022
Summary: Reducing the friction and wear of dynamic interfaces has been a constant endeavor in the field of sustainability. Lubricants with two-dimensional atomic materials are operative frameworks proposed as promising candidates: they can together ...
Guangyan Chen, Jianbin Luo, Jun Zhao
exaly   +4 more sources

Understanding Tribofilm Formation Mechanisms in Ionic Liquid Lubrication [PDF]

open access: yesScientific Reports, 2017
Ionic liquids (ILs) have recently been developed as a novel class of lubricant anti-wear (AW) additives, but the formation mechanism of their wear protective tribofilms is not yet well understood.
Yan Zhou   +3 more
doaj   +3 more sources

ZDDP Tribofilm Formation and Removal

open access: yesTribology Letters
Abstract While ZDDP tribofilm formation has been widely studied, the mechanism of ZDDP tribofilm removal during rubbing is still unclear. The study employs a ball on disc tribometer to monitor ZDDP tribofilm development in rolling-sliding, mixed lubrication conditions.
Hugh Spikes, Mao Ueda, Spikes Hugh
exaly   +3 more sources

Palladium Nanoparticle-Enabled Ultrathick Tribofilm with Unique Composition

open access: yesACS Applied Materials & Interfaces, 2018
There is a consensus that savings of 1.0-1.4% of a country's gross domestic product may be achieved through lubrication R&D. Recent studies have shown great potential for using surface-functionalized nanoparticles (NPs) as lubricant additives to enhance lubricating performance.
Beth Armstrong   +2 more
exaly   +4 more sources

Effect of Sliding on the Relation of Tribofilm Thickness and Wear

open access: yesLubricants, 2023
The formation of tribofilms depends on temperature, shear stress, availability of the related chemical components, and characteristics of the near surface region, e.g., roughness and surface chemistry.
Martin Jech   +4 more
doaj   +2 more sources

Evaluation of Mechanical Characteristics of Tribofilm Formed on the Surface of Metal Material Due to Friction under Lubrication with Automatic Transmission Fluid

open access: yesTribology Online, 2021
In this study, nano-scratch tests were conducted using atomic force microscope (AFM) to clarify the hardness of a tribofilm derived from an additive (Fluid A or Fluid B in automatic-transmission fluid) formed on an SKS3 cold work tool steel substrate ...
Takayuki Tokoroyama   +8 more
doaj   +1 more source

Wear mechanism and evolution of tribofilm of ceramic on steel pairs under ester oil lubrication in wide temperature range

open access: yesJournal of Materials Research and Technology, 2023
The ceramic-steel-pentaerythritol ester system has a broad application prospect under high temperature conditions, which are respectively in the fields of aviation, aerospace and advanced equipment manufacturing. However, a comprehensive understanding of
Lvzhou Li   +7 more
doaj   +1 more source

Correction to: Boundary Friction of ZDDP Tribofilms [PDF]

open access: yesTribology Letters, 2021
The original version of this article unfortunately contained a formatting mistake in tables and figures placement.
Jie Zhang   +3 more
openaire   +1 more source

Boundary Friction of ZDDP Tribofilms [PDF]

open access: yesTribology Letters, 2020
AbstractThe frictional properties of ZDDP tribofilms at low entrainment speeds in boundary lubrication conditions have been studied in both rolling/sliding and pure sliding contacts. It has been found that the boundary friction coefficients of these tribofilms depend on the alkyl structure of the ZDDPs. For primary ZDDPs, those with linear alkyl chains
Jie Zhang   +3 more
openaire   +2 more sources

Temperature dependence of molybdenum dialkyl dithiocarbamate (MoDTC) tribofilms via time-resolved Raman spectroscopy

open access: yesScientific Reports, 2021
Molybdenum dialkyl dithiocarbamate (MoDTC) is a friction reducing additive commonly used in lubricants. MoDTC works by forming a low-friction molybdenum disulphide (MoS2) film (tribofilm) on rubbed surfaces.
Carlos E. Garcia   +3 more
doaj   +1 more source

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