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Effects of the Gas Environment on the Destruction Process of Blade Roots of Land-Based Gas Turbines

  • NEW TECHNOLOGIES IN MECHANICAL ENGINEERING
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Abstract

During operation, parts of the high temperature section of land-based gas turbine units are subjected to an aggressive gas environment, which affects adversely the durability of components and assemblies. When analyzing operational fractures of the ZhS32-VI alloy blade roots after operation as parts of land-based gas turbines, we found that cracks developed in the places of active sulfide-oxide corrosion. In this paper, it is shown that the presence of silver accelerates the corrosion of turbine blade roots. It is proposed to use TiN-based technological barrier layers to protect the blade root surfaces from sulfide-oxide corrosion.

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Funding

This study was supported by the Ministry of Education and Science of the Russian Federation under Grant Agreement no. 14.595.21.0002; the equipment of the Climatic Tests Center for Collective Use, All-Russian Scientific Research Institute of Aviation Materials, was used.

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Authors and Affiliations

  1. All-Russian Scientific Research Institute of Aviation Materials, 105005, Moscow, Russia

    S. A. Naprienko, E. V. Filonova, E. B. Chabina & D. S. Gorlov

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  1. S. A. Naprienko
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  2. E. V. Filonova
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  3. E. B. Chabina
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  4. D. S. Gorlov
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Corresponding author

Correspondence to S. A. Naprienko.

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The authors declare that they have no conflict of interest.

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Translated by N. Semenova

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Naprienko, S.A., Filonova, E.V., Chabina, E.B. et al. Effects of the Gas Environment on the Destruction Process of Blade Roots of Land-Based Gas Turbines. J. Mach. Manuf. Reliab. 50, 256–262 (2021). https://doi.org/10.3103/S1052618821030122

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  • DOI: https://doi.org/10.3103/S1052618821030122

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