Implementation gas-plasma coatings based on nickel
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Дата
2022
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Видавець
Харківський національний автомобільно-дорожній університет
Анотація
The development of modern technology requires a constant increase in reliability
and durability of products.Widely used in the practice of domestic and foreign engineering coatings
from electrolytic chromium for several hundred hours are triggered, they are unsatisfactorily
working on friction and wear at high temperatures. The subject of the study were powder materials
based on nickel PG-SR3 and PG-SR4. The work is devoted to the study of the formation of gasplasma
coatings on parts of the cylinder-piston group of internal combustion engines using selffluxing
powders based on nickel, as well as the structure and properties change after coating
sputtering, its reflow,subsequent hardening. The purpose of this work is to study powder materials
applied to the working surfaces of piston rings by gas-thermal spraying. The object of the study are
processes of formation of the structure and properties of coatings from powder materials. The
presence in the deposited layer of a solid solution based on nickel, carbide phase,borides of
chromium and nickel, chromium silicides is established. The greatest macro- and microhardness is
possessed by fused layers containing the greatest number of strengthening phases. The conducted
researches and industrial tests allowed to introduce the coating into production.
Опис
Ключові слова
wear, coating sprayin, structure, macro- and microhardness, зношування, напилення покриття, структура, макро- і мікротвердість
Бібліографічний опис
Implementation gas-plasma coatings based on nickel / D. B. Hlushkova, V. A. Bagrov, S. V. Demchenko, V. M. Volchuk, O. V. Kalinin, N. E. Kalinina // Матеріалознавство та технології : Міжнар. наук.-техн. конф., 22–23 верес. 2022 р. / Харків. нац. автомоб.-дор. ун-т. – Харкiв, 2022. – С. 13–22.