THE INFLUENCE OF TECHNOLOGICAL PARAMETERS ON THE PROPERTIES OF COATINGS SYNTHESIZED BY MICROARC OXIDATION 

Pecherskaya Ekaterina Anatolevna, doctor of technical sciences, associate professor, head of sub-department of information and measuring equipment and metrology, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: pea1@list.ru
Golubkov Pavel Evgenevich, postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: golpavpnz@yandex.ru
Karpanin Oleg Valentinovich, senior lecturer, sub-department of nano-and microelectronics, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: karpanino@mail.ru
Kozlov Gennadiy Vasilevich, doctor of technical sciences, professor,
director of Polytechnic Institute, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: gvk17@yandex.ru
Zinchenko Timur Olegovich, postgraduate student, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: scar0243@gmail.com
Smogunov Vladimir Vasilievich, doctor of technical sciences, professor-consultant, sub-department of theoretical and applied mechanics and graphics, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: vladimir.smogunov@mail.ru 

620.1.08 

10.21685/2307-5538-2020-2-11 

Background. Microarc oxidation is a promising method for producing highstrength protective coatings that have unique properties on parts made of light metals and alloys. However, the effectiveness of this method is limited by the lack of a single formalized description of the relationships between many factors affecting the properties of coatings and their quality indicators. This confirms the relevance of the study, the purpose of which is to systematize technological parameters, to model the functional dependences of the properties of oxide coatings on factors of various nature.
Materials and methods. The article discusses the method of microarc oxidation, which is used to obtain wear-resistant, heat-resistant, electrical insulating protective coatings on parts made of aluminum, magnesium, and titanium alloys.
Results. For the first time, a model of the relationship between the technological parameters of the microarc oxidation process and the parameters characterizing the quality of the synthesized coatings is proposed. It is advisable to use this model for optimizing technological conditions in order to synthesize coatings with desired properties.
Conclusions. A systematic approach to the description of the microarc oxidation process is proposed, which allows, through the development of a graph model of the relationship of parameters affecting the properties of the coatings, to systematize and formalize the established patterns, to identify the most important factors to be measured and controlled during the MAO processing. 

microarc oxidation, technological modes, properties, oriented graph model, connection diagram.