Abstract
The article considers the technological aspects of temperature estimation in an aluminum specimen with the possible formation of an aluminum-containing coating on its surface using the combined technology of cold gas dynamic deposition and microarc oxidation. The experimental results for the temperature flow distribution over the thickness of the metal surface under the cold gas dynamic deposition are presented. The temperature of the heat flow during spraying was varied from 200 to 600°C. It was found that the operating temperature of the aluminum substrate with a thickness of 8 mm at the standard thermal deposition modes is not more than 120°C, which is one of the advantages of the used technology over the known methods of plasma and magnetron sputtering. The temperature effect of the microarc oxidation on the surface of a specimen depending on various technological modes is estimated. It was found that the surface temperature of the specimen oxidized in an alkaline electrolyte with liquid glass additives at current densities of 20–30 A/dm2 is not more than 90°C, which shows the absence of thermal transformations.
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The presented material has been obtained in the framework of the Russian Science Foundation grant no. 18-73-00025 (the second year of the research implementation).
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Translated by M. Myshkina
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Kuznetsov, Y.A., Markov, M.A., Kravchenko, I.N. et al. Technological Aspects of Temperature Estimation in Metal in the Case of Coating Formation Using the Method of Heterophase Transfer and Microarc Oxidation. Surf. Engin. Appl.Electrochem. 57, 502–506 (2021). https://doi.org/10.3103/S1068375521040104
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DOI: https://doi.org/10.3103/S1068375521040104