Protective Coatings for the III–IV Generation Turbine Blades

The properties and methods of forming of β(NiAl)Zr and β(NiAl)SiMo (SHS) aluminide coatings are considered to protect the III–IV generation blades of a high-pressure turbine (HPT) against high-temperature oxidation. The results of comparative isothermal heat-resistance tests (1100°C) are presented....

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Bibliographic Details
Published in:Russian metallurgy Metally 2023-06, Vol.2023 (6), p.825-830
Main Authors: Samoilenko, V. M., Aksenov, A. N., Ravilov, R. G., Opokin, V. G.
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Electron beams
Hardening and Coating Technologies
High temperature
Intermetallic compounds
Materials Science
Metallic Materials
Minimum cost
Nickel aluminides
Nickel base alloys
Nickel compounds
Oxidation resistance
Protective coatings
Turbine blades
Zirconium
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Summary:The properties and methods of forming of β(NiAl)Zr and β(NiAl)SiMo (SHS) aluminide coatings are considered to protect the III–IV generation blades of a high-pressure turbine (HPT) against high-temperature oxidation. The results of comparative isothermal heat-resistance tests (1100°C) are presented. The solutions proposed for a DG90 HPT are shown to have significantly better protective properties as compared to VSDP-11 and to be characterized by simple production, the minimum cost, and the availability and possibility of using these coatings as a binder layer for a ceramic electron-beam condensate.
ISSN:0036-0295
1555-6255
1531-8648
DOI:10.1134/S0036029523060368