Results 91 to 100 of about 2,835 (199)

The Distribution of Zinc in Low-Friction ZDDP Tribofilm on Iron Oxide

open access: yesTribology Online, 2009
To develop a low-friction and low-wear tribo-system for engine components, the authors have been studying the ZDDP tribofilm formed on iron oxide. Tribotests on iron-oxide / steel sliding pairs were performed in PAO with 1 mass% ZDDP.
Kosuke Ito   +3 more
doaj   +1 more source

The Role of Counter-Face Roughness on the Tribological Performance of a Clutch System Tested with a Pin-On-Disc Tribometer

open access: yesLubricants, 2016
This study was a continuous investigation of the roles played by the tribofilm on dry automotive clutch system performance. Tribological experiments were performed by the addition of wear debris at the beginning of tribometer tests and by reducing the ...
Graciliano Fernandes   +2 more
doaj   +1 more source

Characterization of Tribofilm from Sulfurized Mohwa Oil [PDF]

open access: yesISRN Mechanical Engineering, 2011
The reaction products of sulfurized Mohwa oil with iron powder in hydrocarbon medium at 150°C for 8 h were studied to investigate the type of lubricant films formed during their application as antiwear and extreme pressure additives. The main reaction product was isolated on the basis of its solubility in mixed solvent.
openaire   +1 more source

Covalently bonded Ti3C2Tx/attapulgite sheet-rod heterostructure enabling synergistic lubrication

open access: yesFrontiers in Materials
To overcome the poor dispersion and limited load-bearing capacity of two-dimensional lubricant additives in oils, we designed and synthesized a novel Ti3C2Tx MXene/Attapulgite (ATP) sheet-rod heterostructure as a high-performance lubricant additive.
Peng Zhao   +4 more
doaj   +1 more source

Influence of slide-to-roll ratio on tribofilm generation

open access: yes, 2008
International audienceRolling contact fatigue has become a surface initiated problem. This phenomenon is due to the initiation and propagation of cracks from the surface to the volume of mechanical pieces.
Minfray, Clotilde   +6 more
core   +1 more source

Low-friction carbon-based tribofilm from poly-alpha-olefin oil on thermally oxidized Ti6Al4V

open access: yes, 2018
Titanium alloy shows a poor tribological performance even under lubrication. In this paper, we report the formation of carbon-based tribofilms from poly-alpha-olefin (PAO) base oil molecules on Ti6Al4V (Ti64) samples after thermal oxidization treatment ...
Wan, Yong   +5 more
core  

Synergistic tribofilm evolution and multi-scale surface transformation in hybrid CuO–Al₂O₃ nano-lubricated diesel cylinder liner interfaces

open access: yesResults in Engineering
Tribological losses at the cylinder liner–piston ring interface significantly affect the efficiency and durability of diesel engines, necessitating advanced lubrication strategies.
Ponnusamy Baskar
doaj   +1 more source

Formation and Function of Low-Friction Tribofilms

open access: yes, 2014
The use of low-friction coatings on machine elements is steadily increasing, and they are expected to play an important role in the reduction of fuel consumption of future motorized vehicles. Many low-friction coatings function by transformation of the outermost coating layer into tribofilms, which then cover the coating surface and its counter surface.
openaire   +2 more sources

Transient nanoscale tribofilm growth: analytical prediction and measurement

open access: yes, 2021
A new method for simultaneous in situ measurement and characterisation of molybdenum-based tribofilms is presented, based on lateral force microscopy.
Nick Morris (1256529)   +2 more
core   +1 more source

Modelling of wear and tribofilm growth

open access: yes, 2012
Wear is a consequence of nature which becomes costly if uncontrolled. Basic wear protection is provided by lubrication which will decrease the severity of the contact between asperities. If the conditions of a contact are such that there can be no hydrodynamic lift off by the oil and most of the contact occurs in between such asperities, the protection
openaire   +1 more source

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