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2020 №04 (04) DOI of Article
10.37434/sem2020.04.05
2020 №04 (06)

Electrometallurgy Today 2020 #04
SEM, 2020, #4, 28-31 pages

Industrial technology of deposition of two-layer plasma heat-protective coatings on gas turbine blades

Authors
V.A. Akrimov1, I.M. Grechanyuk2, Yu.O. Smashnyuk3, V.G. Grechanyuk4, M.P. Lyubarenko3
1SC GTRDC «Zorya-Mashproekt». 42-a Bogoyavlenskiy Prosp., 54018, Mykolayiv, Ukraine. E-mail: office@zorya.com.ua
2Frantsevich IPM NAS of Ukraine. 3 Acad. Krzhyzhanovskiy str., 03680, Kyiv, Ukraine. E-mail: ipm@nas.gov.ua
3NVP «ELTEKHMASH». 25 Vatutin Str., 21011, Vinnytsia, Ukraine. E-mail: vin25ebt@ukr.net
4Kyiv National University of Construction and Architecture. 31 Povitroflotskiy Prosp., 03037, Kyiv, Ukraine. E-mail: knuba@knuba.edu.ua

Abstract
The peculiarities of the industrial technology of deposition of plasma heat-protective coatings on the blades of gas turbine units using CoCrAlYSi powders obtained from the corresponding alloys of electron-beam melting are described. The necessity of controlled surface preparation of the blades before coating is shown. The time between surface cleaning and coating is regulated. The optimal technological parameters of the coating are indicated and their structural and chemical composition is investigated. Ref. 5, Tabl. 1, Fig. 3.
Keywords: plasma heat-protective coatings; application technology; powders; alloys; blades; structure

Received 14.10.2020

References

1. Beele, W., Marijnissen, G., Van Lieshout, A. (1999) The evolution of thermal barrier coatings - status and upcoming solutions for today`s key issues. Surface and Coatings Technology, 120-121, 61-67. https://doi.org/10.1016/S0257-8972(99)00342-4
2. Lakiza, S.M., Grechanyuk, M.I., Ruban, O.K. et al. (2018) Thermal barrier coatings: Current status, search and analysis. Powder Metallurgy and Metal Ceramics, 57(1-2), 82-113. https://doi.org/10.1007/s11106-018-9958-0
3. (2015) TU U 27.4-20113410.002-2001: Materials in ingots and powders for protective coatings [in Russian].
4. Gogaev, K.O., Grechanyuk, M.I., Gribkov, V.K. et al. (2012) Method for producing of complexly-alloyed powders based on cobalt. Ukraine, Pat. 99557 [in Russian].
5. Grechanyuk, N.I., Gogaev, K.A., Zatovsky, V.G. (2012) Peculiarities of producing of powder alloy Co-Cr-Al-Y-Si. Poroshk. Metallurgiya, 11-12, 18-25 [in Russian].

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