Results 101 to 110 of about 2,082 (212)

Understanding the Friction Reduction Mechanism Based on Molybdenum Disulfide Tribofilm Formation and Removal

, 2018
Among friction modifier lubricant additives, molybdenum dialkyldithiocarbamate (MoDTC) provides excellent friction behavior in boundary lubricated tribocontacts.
Morina, A, Neville, Anne, Morina, Ardian, Ardian Morina, Wang, Chun, Wang, C, Dichu Xu, Wang, Jiugen, Espejo, C, Wang, J, Xu, Dichu, Neville, A, Chun Wang, Cayetano Espejo, Jiugen Wang, Anne Neville, Xu, D, Espejo, Cayetano   +17 more
core   +1 more source

The Influence of Aluminium–Silicon Alloy on ZDDP Tribofilm Formation on the Counter-Surface [PDF]

, 2017
In order to reduce vehicle weight and thus improve fuel economy, aluminium (Al) alloys have been increasingly adopted as contact surfaces such as piston skirts and cylinder liners in current engines.
Hugh A. Spikes, Spikes, HA, Yasunori Shimizu, Shimizu, Y   +3 more
core   +1 more source

Voltage-Driven Growth of Phosphorus Tribofilms

Abstract Ashless phosphorus-based lubricant additives, which are increasingly deployed in next-generation formulations, often suffer from slow tribofilm formation and poor film stability, limiting their effectiveness under demanding operating conditions.
Yun Zhao, Jie Zhang, Hugh A. Spikes, JANET S. S. WONG   +3 more
openaire   +1 more source

Characterization of Tribofilm from Sulfurized Mohwa Oil [PDF]

ISRN 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

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

, 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, Yang, Shuyan, Liu, Jian, Pu, Jibing, Cao, Lei, Gao, Jianguo   +5 more
core  

Friction, wear and tribofilm formation on electrical contact materials in reciprocating sliding against silver-graphite

, 2013
In this study nanocomposite coatings mating silver-graphite were investigated for sliding electrical contact applications with the aim to optimize tribological and electrical properties.
Grandin, Martina,, Wiklund, Urban,
core   +1 more source

Tribological Properties of Nitrided Steels Lubricated with Fully Formulated Oils in Boundary Lubrication Condition

Tribology Online, 2018
Nitriding is one of the most popular heat treatments widely used in hydraulic sliding parts of automotive or construction machinery components. Since the nitrided steels shows great wear resistance due to its high hardness, it is widely applied to ...
Hiroto Aota, Yukio Tamura, Hiroshi Yamamoto, Shinji Tanaka, Masao Kikuchi, Masabumi Masuko   +5 more
doaj   +1 more source

Simulation scheme for investigating the wear protection effect of a ZDDP tribofilm

An initial idea is presented on how the wear protection of a ZDDP tribofilm can be investigated numerically. Since wear protection is based on the equilibrium of tribofilm removal and tribofilm formation, both processes are modelled and then combined in ...
Burger, Henning, Popov, Valentin L.
core   +1 more source

Some mechanisms of tribofilm formation in metal/metal and ceramic/metal sliding interactions

, 2000
Tribological interaction often generates new structures and materials which form the interface between the sliding pair. The new material designated tribofilm here may be protective or tribologically deleterious.
Biswas, SK, S.K Biswas
core   +1 more source

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

Results 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