Electrochemical behavior and corrosion resistance of wrought aluminum alloys with decorative black plasma-electrolytic coatings of silicon-on-sapphire chip substrates
https://doi.org/10.31615/j.corros.prot.2023.110.4-2
Abstract
In this article, a electrolyte composition for obtaining black decorative coatings on wrought aluminum alloys by plasma-electrolytic oxidation is proposed. The mechanisms of the highest anticorrosion ability of relatively thin coatings (approximately 17 μm) at relatively short (24 h) exposures in an aqueous solution containing chloride ions, and thick coatings (48, 82 μm) - at long exposure times in this solution, are proposed.
About the Authors
A. G. Rakoch
National Research Technological University «MISIS»
Russian Federation
Russian Federation
Alexander G. Rakoch, Doctor of Chemistry, Professor,
b. 1, 4, Leninsky av., Moscow, 119049.
Van Tuan Chan
National Research Technological University «MISIS»
Russian Federation
Russian Federation
Van Tuan Chan, postgraduate student,
b. 1, 4, Leninsky av., Moscow, 119049.
E. P. Monakhova
LLC «Certification Authority»
Russian Federation
Russian Federation
Evgenia P. Monakhova, Ph.D. in Technical Sciences, Chief Specialist in Corrosion Protection,
b. 8, 9/6, Amurskaya st., Moscow, 107497.
References
1. Gnedenkov, S. V., Sinebryukhov, S. L., & Sergienko, V. I. (2013). Composite multifunctional coatings on metals and alloys formed by plasma electrolytic oxidation. Vladivostok: Dalnauka.
2. Suminov, I. V., Belkin, P. N., Epelfeld, A. V. [and etc.] (2011). Plasma-electrolytic modification of the surface of metals and alloys. V. 2. Moscow: Technosfera.
3. Rakoch, A. G., Gladkova, A. A., & Dub, A. V. (2017). Plasma-electrolytic treatment of aluminum and titanium alloys. Moscow: MISIS Publishing House.
4. Rakoch, A. G., Tran, Van Tuan, & Monakhova, E. P. (2022). Studies on the effect of the composition of wrought alloys (D16, AMg6 and V95) on the formation kinetics, structure, and electrochemical behavior of black plasmaelectrolytic coatings. International Journal of Corrosion and Scale Inhibition, 11(4), 1763-1786.
Review
For citations:
Rakoch A.G., Chan V.T., Monakhova E.P. Electrochemical behavior and corrosion resistance of wrought aluminum alloys with decorative black plasma-electrolytic coatings of silicon-on-sapphire chip substrates. Theory and Practice of Corrosion Protection. 2023;28(4):18-21. (In Russ.) https://doi.org/10.31615/j.corros.prot.2023.110.4-2
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