Article 8222

Title of the article

An analysis of the causes affecting the quality indicators of coatings obtained by microarc oxidation 

Authors

Ekaterina A. Pecherskaya, Doctor of engineering sciences, associate professor, head of the sub-department of information and measuring technology and metrology, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: pea1@list.ru
Pavel E. Golubkov, Engineer of the sub-department of information and measuring technology and metrology, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: golpavpnz@yandex.ru
Oleg A. Mel'nikov, Postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: oleg-068@mail.ru
Anatoliy V. Pecherskiy, Doctor of engineering sciences, associate professor, professor of the sub-department of information support of management and production, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: ura258@yandex.ru
Andrey A. Maksov, Student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: maksov.01@mail.ru
Anna A. Anisimova, Student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: an.ryzhova18@gmail.com 

Abstract

Background. The object of research is the technological process of microarc oxidation, the subject of research is the quality parameters of the obtained oxide coatings on valve group metals and alloys based on them. The purpose of the work is to improve the quality parameters of coatings obtained by microarc oxidation through a comprehensive analysis of the influencing factors. Materials and methods. Obtaining oxide coatings on alloys D16, AMg6 and Ak5 by microarc oxidation using an electrolyte of composition 0.5 g/l NaOH and 30 g/l Na2SiO3 and various current densities: 15 A/dm2; 20 A/dm2; 25 A/dm2; 50 A/dm2. Results. A relationship diagram of technological regimes and parameters of oxide coatings obtained by microarc oxidation has been developed, which is used to analyze the causes that affect the quality parameters of the formed coatings. Oxide coatings were synthesized on samples of aluminum alloys D16, AMg6 and Ak5 under various technological conditions and electrolyte composition, which made it possible to identify and analyze the causes that affect the reduction in the quality of coatings. Conclusions. A method is proposed for monitoring the quality parameters of the formed oxide coatings in real time, based on the analysis of the deviation of the molding curve from the traditional piecewise linear form. 

Key words

microarc oxidation, oxide coatings, technological regimes, current density, electrolyte, quality parameters 

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For citation:

Pecherskaya E.A., Golubkov P.E., Mel'nikov O.A., Pecherskiy A.V., Maksov A.A., Anisimova A.A. An analysis of the causes affecting the quality indicators of coatings obtained by microarc oxidation. Izvestiya vysshikh uchebnykh zavedeniy. Povolzhskiy region. Tekhnicheskie nauki = University proceedings. Volga region. Engineering sciences. 2022;(2):92–103. (In Russ.). doi:10.21685/2072-3059-2022-2-8

 

Дата создания: 17.06.2022 14:21
Дата обновления: 20.06.2022 14:34