Investigation of the effect of the barrier layer on heat-resistant protective coating for turbine blades from ZhS32 alloy

Smirnov A.A., Budinovskiy S.A.
UDC
669.018.44
DOI
10.18577/2307-6046-2017-0-1-2-2
Article PDF (Russian) (1.47 MB)
How to cite
Smirnov A.A., Budinovskiy S.A. Investigation of the effect of the barrier layer on heat-resistant protective coating for turbine blades from ZhS32 alloy // Proceedings of VIAM. 2017. No. 1. DOI: 10.18577/2307-6046-2017-0-1-2-2. URL: https://test.viam.ru/en/journal/2017/1/2
Keywords
heat-resistant coatings, ion-plasma technology, high-temperature nickel alloys, secondary reaction zone, topologically close-packed phases.
Abstract

The effect of the nitride and carbide barrier layers on heat resistance of the compositions of superalloy ZhS32 with heat-resistant coatings was studied. Investigations of the barrier layer microstructure in the coating structure in original form and after heat resistance test at temperatures 1150 and 1200°C on the basis of 500 and 100 hours accordingly were carried out. Kinetics change of the barrier layers and their influence on the protective properties of the coating was studied. It has been found that the use of the nitride barrier in the structure of heat-resistant protective coating composition Ni–Cr–Al–Ta–Re–Y–Hf+Al–Ni–Y improves the heat resistance of composition «ZhS32–coating». The work is executed within the implementation of the complex scientific direction 17.3. «Multilayer heat-resisting and heat-protective coatings, nanostructural strengthening erosion, corrosion, wear-resistant and antifretting coatings for protection of hot section parts and GTЕ/GTU compressor» («The

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