Abstract
The erosion-resistant ZrN and Cr3C2 coatings intended for the protection of the titanium and steel blades in a GTE compressor are studied. The erosion resistance of the substrate–coating composition is shown to depend on the coating thickness, the deposition conditions, and the coating texture. Ion-assisted deposition changes the structure–phase state of a coating and substantially increases its erosion resistance. It is found that a nanolayer 2D TiN/CrN coating with an average nanolayer thickness of ~60 nm is the best erosion- corrosion-resistant coating for titanium alloys and that a (NiCrTiAlHf)C + CrC coating formed by ionassisted deposition is the best coating for steels. The testing of alloy VT8 compressor blades in an engine supported high protective properties of the nanolayer TiN/CrN coating.
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Original Russian Text © E.N. Kablov, S.A. Muboyadzhyan, 2016, published in Elektrometallurgiya, 2016, No. 10, pp. 23–38.
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Kablov, E.N., Muboyadzhyan, S.A. Erosion-resistant coatings for gas turbine engine compressor blades. Russ. Metall. 2017, 494–504 (2017). https://doi.org/10.1134/S0036029517060118
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DOI: https://doi.org/10.1134/S0036029517060118