The use of electrolytic-plasma treatment for repair of GTE blades

Dobrynin D.A., Pavlova T.V., Afanasev-Khodykin A.N., Alekseeva M.S.
UDC
629.7.083
DOI
10.18577/2307-6046-2019-0-8-18-26
Article PDF (Russian) (791.04 KB)
How to cite
Dobrynin D.A., Pavlova T.V., Afanasev-Khodykin A.N., Alekseeva M.S. The use of electrolytic-plasma treatment for repair of GTE blades // Proceedings of VIAM. 2019. No. 8. DOI: 10.18577/2307-6046-2019-0-8-18-26. URL: https://test.viam.ru/en/journal/2019/8/3
Keywords
electrolytic-plasma coating removal, comprehensive repair of GTE blades.
Abstract

A comparative review of traditional methods (mechanical, chemical and electrochemical) of removing protective coatings from the surface of GTE blades with the method of electrolytic-plasma removal of coatings is presented. Comprehensive repair of GTE working blades made from alloys such as ZhS, including cleaning the outer surface of the blades from carbon deposits, gas corrosion products and spent coatings of MеCrAlY composition, using the technology of electrolytic-plasma removal of coatings, hot isostatic pressing (HIP) and heat treatment to restoration of the structure of the material of the blades, flaw detection control and soldering of damaged surface areas, mechanical processing of soldering sites, the operation of coating the composition MеCrAlY on the outer surface of the blades. It is shown that the method of electrolytic-plasma removal of coatings can be a substitute for traditional methods for removing coatings when repairing gas turbine engine blades.

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