Multilayer heat-resistant ion-plasma coatings for protecting the parts of the hot duct of gas-turbine engines produced from refractory nickel alloys based on VKNA intermetallics from high-temperature oxidation are considered. Coatings of the Ni – Cr – Al (Ta, Re, Hf, Y) + Al – Ni – Y systems are tested for high-temperature strength at 1200 and 1250°C. Metallographic and microscopic x-ray spectrum analyses of the structure and composition of the coatings in the initial condition and after the testing are performed. The effect of protective coatings of the Ni – Cr – Al – Hf + Al – Ni – Y systems on the long-term strength of alloys VKNA-1V and VKNA-25 at 1200°C is studied.
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References
E. N. Kablov, N. V. Petrushin, and E. S. Elyutin, “Single-crystal refractory alloys for gas turbine engines,” in: Vestn. MGTU Im. N. E. Baumana, Special Issue “Perspective Structural Materials and Technologies” [in Russian] (2011), pp. 38 – 52.
E. N. Kablov, N. V. Petrushin, I. L. Svetlov, and I. M. Demonis, “Nickel castable refractory alloys of the new generation,” Aviats. Mater. Tekhnol., No. 8, 36 – 52 (2012).
S. A. Budinovskii, S. A. Muboyadzhyan, A. M. Gayamov, and V. V. Stepanova, “Ion-plasma refractory coatings with composite barrier layer for protecting alloy ZhS36VI from oxidation,” Metalloved. Term. Obrab. Met., No. 1, 34 – 40 (2011).
S. A. Budinovskii, S. A. Muboyadzhyan, A. M. Gayamov, and V. P. Matveev, “Development of ion-plasma refractory metallic layers of heat-protective coatings for cooled rotor blades of turbines,” Metalloved. Term. Obrab. Met., No. 12, 15 – 21 (2013).
J. A. Haynes, B. A. Pint, W. D. Porter, and I. G. Wright, “Comparison of thermal expansion and oxidation behavior of various high-temperature coatings and superalloys,” Mater. High Temp., 21(2), 87 – 94 (2004).
C. Sarioglu, M. J. Stinger, and F. S. Pettit, “The adhesion of alumina films in metallic alloys and coatings,” Mater. Corr., 51, 358 – 372 (2000).
C. Mennicke, et al., “The role of secondary oxide inclusions (“pegs”) on the spalling resistance of oxide films,” Acta Mater., 48(11), 2941 – 2949 (2000).
B. Sudhangshu, High Temperature Coatings, Elsevier Sci. Technol. Books (2007), 301 p.
C. A. Barrett, R. V. Miner, and D. R. Hull, “The effects of Cr, Al, Ti, Mo, W, Ta, and Nb on the cyclic oxidation behavior of cast Ni-base superalloys at 1100 and 1150°C,” Oxidation Met., 20(5/6), 255 – 278 (1983).
N. Czech, F. Schmitz, and W. Stamm, “Improvement of MCrAlY coatings by addition of rhenium,” Surf. Coat. Technol., 68/69, 17 – 21 (1994).
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 2, pp. 46 – 52, February, 2017.
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Budinovskii, S.A., Matveev, P.V. & Smirnov, A.A. Development of Ion-Plasma Coatings for Protecting Intermetallic Refractory Alloys VKNA-1V and VKNA-25 in the Temperature Range of 1200 – 1250°C. Met Sci Heat Treat 59, 110–116 (2017). https://doi.org/10.1007/s11041-017-0113-1
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DOI: https://doi.org/10.1007/s11041-017-0113-1