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Research of a heat-resistant intermetallic underlayer for the heat-shielding coating of gas turbine engine turbine blades
- Authors: Tarasenko Y.P.1, Tsareva I.N.1, Berdnik O.B.2, Fel Y.A.1, Krivina L.A.1
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Affiliations:
- Institute of Mechanical Engineering Problems of the Russian Academy of Sciences
- The Nizhniy Novgorod branch of Establishment of the Russian Academy of Sciences Institute mechanical engineering A.A.Blagonravova's name of the Russian Academy of Sciences Joint-Stock Company Research-and-production Center "Tribonika", Nizhni Novgorod
- Issue: Vol 14, No 3 (2014)
- Pages: 85-94
- Section: MECHANICAL ENGINEERING AND POWER ENGINEERING
- URL: https://journals.ssau.ru/vestnik/article/view/2077
- DOI: https://doi.org/10.18287/1998-6629-2014-0-3(45)-85-94
- ID: 2077
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Abstract
The paper presents the results of research of the structure as well as physical and mechanical properties of a heat-resistant intermetallic coating of a “Ni-Co-Cr-Al-Y” system produced by the method of high-energy plasma powder spraying and used as a substrate in forming a heat-shielding zirconium dioxide coating. A coating is produced with an intermetallic phase composition (b-NiAl+ g’-Ni3Al) and spheroidal grain microstructure. The density of the coating is r=8200 kg/m 3, the microhardness is Нm=7,85 GPa and the roughness is 5mkm. According to the results of testing the heat shielding of the wall of a turbine blade made of the ЖС6Ф alloy with the help of a heat-shielding ZrO2 coating with a “Ni-Co-CR-Al-Y” substrate the metal temperature reduction amounted to 398 K. The coating is intended for the protection of the working surface of various-application gas turbine engine turbine blades against high-temperature gas corrosion in the form of a substrate for the heat-shielding zirconium dioxide coating, and also as an independent heat-shielding coating. The plasma heat-shielding coating for the “Ni-Co-CR-Al-Y” system has been tested as a substrate for a heat-shielding coating of zirconium dioxide with a view to extending the service life of turbine blades (made of a heat-resistant ЖС6Ф alloy) of the NK series gas turbine engine turbines.
About the authors
Yu. P. Tarasenko
Institute of Mechanical Engineering Problems of the Russian Academy of Sciences
Author for correspondence.
Email: npktribonika@yandex.ru
Candidate of Science (Physics and Mathematics)
Head of laboratory
Russian FederationI. N. Tsareva
Institute of Mechanical Engineering Problems of the Russian Academy of Sciences
Email: npktribonika@yandex.ru
Candidate of Science (Physics and Mathematics)
Senior Researcher
Russian FederationO. B. Berdnik
The Nizhniy Novgorod branch of Establishment of the Russian Academy of Sciences Institute mechanical engineering A.A.Blagonravova's name of the Russian Academy of Sciences Joint-Stock Company Research-and-production Center "Tribonika", Nizhni Novgorod
Email: npktribonika@yandex.ru
Candidate of Science (Engineering)
Senior Researcher
Russian FederationYa. A. Fel
Institute of Mechanical Engineering Problems of the Russian Academy of Sciences
Email: npktribonika@yandex.ru
Candidate of Science (Physics and Mathematics)
Senior Researcher
Russian FederationL. A. Krivina
Institute of Mechanical Engineering Problems of the Russian Academy of Sciences
Email: npktribonika@yandex.ru
Research associate
Russian FederationReferences
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