Open AccessDeveloping technology of creating wear-resistant ceramic coating for internal combustion engine cylinder sleeve
Author(s) -
Anatoliy V. Chavdarov,
Viatcheslav A. Denisov
Publication year - 2021
Publication title -
nexo
Language(s) - English
Resource type - Journals
eISSN - 1995-9516
pISSN - 1818-6742
DOI - 10.5377/nexo.v34i04.12689
Subject(s) - materials science , piston ring , coating , ceramic , cylinder , piston (optics) , internal combustion engine , cast iron , layer (electronics) , composite material , combustion , work (physics) , metallurgy , mechanical engineering , ring (chemistry) , engineering , chemistry , physics , organic chemistry , optics , wavefront
This paper presents the results of testing a wear-resistant ceramic coating on the work surface of an internal combustion engine (ICE) cylinder’s sleeve. A combined coating formation technology is described that consists in applying an aluminum layer to the sleeve’s work face by gas dynamic spraying and then covering this face with a ceramic layer by microarc oxidation (MAO). A tenfold reduction in the reinforced sleeve has been determined by the accelerated comparative wear rig tests of reference (new) sleeve-piston ring coupling specimens and reinforced specimens with a combined coating. The supplementation of nanoparticle admixture to MAO coating reduces the friction factor between the cylinder sleeve face and the piston ring by 25-30%. The proposed technology can be used to reinforce work surfaces of new cylinder sleeves and recover worn out ones.