Mechanical and corrosion properties of nano-tin enhanced PEO coatings on cast Al-Si alloy

The effect of titanium nitride nanoparticles (TiN NPs) added to the electrolyte on the mechanical and corrosion properties of oxide layers formed by plasma-electrolytic oxidation (PEO) in the "soft sparking" mode on cast 356.0 Al-Si alloy was investigated. It was found that the addition of...

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Bibliographic Details
Main Authors: Polunin, A. V., Borgardt, E. D., Shafeev, M. R., Cheretaeva, A. O., Denisova, A. G., Katsman, A. V., Krishtal, M. M.
Format: Conference Proceeding
Language:English
Subjects:
Aluminum base alloys
Coatings
Corrosion currents
Corrosive wear
Nanoparticles
Oxidation
Silicon
Titanium nitride
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Summary:The effect of titanium nitride nanoparticles (TiN NPs) added to the electrolyte on the mechanical and corrosion properties of oxide layers formed by plasma-electrolytic oxidation (PEO) in the "soft sparking" mode on cast 356.0 Al-Si alloy was investigated. It was found that the addition of TiN NPs in small concentrations (0.5 and 1.0 g/l) results in approximately 1.5 times higher hardness and corrosion current densities and wear of PEO-formed oxide layers lowered by about 3 and 2 times, respectively. A further increase of the concentration of TiN NPs (up to 3 g/l) has no effect on the properties of the obtained PEO coatings.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0098845