Removal of hardening coatings based on titanium nitride and zirconium nitride from the surface of parts made of titanium alloys

Dobrynin D.A., Iatsyuk I.V., Doronin O.N.
UDC
66.017
DOI
10.18577/2307-6046-2020-0-11-113-121
Article PDF (Russian) (998.84 KB)
How to cite
Dobrynin D.A., Iatsyuk I.V., Doronin O.N. Removal of hardening coatings based on titanium nitride and zirconium nitride from the surface of parts made of titanium alloys // Proceedings of VIAM. 2020. No. 11. DOI: 10.18577/2307-6046-2020-0-11-113-121. URL: https://test.viam.ru/en/journal/2020/11/12
Keywords
chemical and electrochemical removal of coatings, hardening coating, titanium nitride, zirconium nitride, titanium alloy.
Abstract

Рrovides an overview of the methods of chemical and electrochemical removal of hardening coatings based on titanium nitride (TiN) and zirconium nitride (ZrN) from the surface of parts made of various materials that can be used to remove defective and waste coatings from the surface of compressor blades and other parts of gas turbine engines (GTE) from titanium alloys. The main disadvantages of the described methods are shown in relation to the removal of hardening coatings from the surface of compressor blades and other GTE parts made of titanium alloys. Taking into account the shortcomings of the available methods, FSUE «VIAM» has developed effective methods for chemical removal of hardening coatings based on titanium nitride and zirconium nitride from the surface of parts made of titanium alloys, and recommendations are given for controlling the completeness of removal of coatings.

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