The research of erosion-corrosion-resistant coatings for protection of titanium impellers for helicopter gas-turbine engine

Aleksandrov D.A., Doronin O.N., Juravleva P.L., Benklyan A.S.
UDC
669.058
DOI
10.18577/2307-6046-2023-0-9-90-100
Article PDF (Russian) (760.29 KB)
How to cite
Aleksandrov D.A., Doronin O.N., Juravleva P.L., Benklyan A.S. The research of erosion-corrosion-resistant coatings for protection of titanium impellers for helicopter gas-turbine engine // Proceedings of VIAM. 2023. No. 9. DOI: 10.18577/2307-6046-2023-0-9-90-100. URL: https://test.viam.ru/en/journal/2023/9/8
Keywords
erosion resistance, residual stresses, ion-plasma coatings, titanium nitride, multilayer coatings
Abstract

The erosion-corrosion-resistant coatings applicable to protect impellers of a gas-turbine engine compressor made of titanium alloys are studied. The properties of promising systems of ion-plasma coatings are studied: (TiN–CrN), TiN/Ti/TiN, (TiN–Ti–Al–Cr–N)–TiN. Erosion and corrosion resistance tests were carried out, residual stresses in the coating were investigated, high-cycle fatigue tests and metallographic studies were carried out. The influence of the thickness and design of coatings on the erosion and corrosion resistance of titanium alloys, the endurance limit has been established.

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