Removal of heat resisting condensation and diffusion coatings from the surface of GTE blades before and after the operating time

Popova S.V., Dobrynin D.A., Muboyadzhyan S.A., Budinovskiy S.A.
UDC
621.9.044
DOI
10.18577/2307-6046-2017-0-1-4-4
Article PDF (Russian) (698.7 KB)
How to cite
Popova S.V., Dobrynin D.A., Muboyadzhyan S.A., Budinovskiy S.A. Removal of heat resisting condensation and diffusion coatings from the surface of GTE blades before and after the operating time // Proceedings of VIAM. 2017. No. 1. DOI: 10.18577/2307-6046-2017-0-1-4-4. URL: https://test.viam.ru/en/journal/2017/1/4
Keywords
electrolytic-plasma treating, stripping, heat-resistant coating, blade, heat-resistant nickel alloy, condensation-diffusion coating, surface.
Abstract

The significant part of the blade repair technology is removing used coatings from the surface of complex geometry blade. A method has been developed for removal of heat resisting condensation and diffusion coatings in electrolytic plasma by directional jet of electrolyte. This method allows uniform layer-by-layer removing heat resistant coatings from heat-resistant nickel alloys. The peculiarity of the process is a universality of usable electrolytes not requiring component correction in dependence on heat-resistant coating and alloy composition. The work is executed within the implementation of the complex scientific direction 10.11. «Power-efficient, resource-saving progressive technologies of machining of metal and non-metallic materials» («The strategic directions of development of materials and technologies of their processing for the period till 2030»)

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