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Eurasian Journal of Physics and Functional Materials

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Structure and properties of multilayer coatings based on CoCrAlY/Al2O3 obtained by detonation spraying

https://doi.org/10.32523/ejpfm.2022060308

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Abstract

Ceramic coatings are used to protect against high-temperature oxidation of metal products. The efficiency of the technology of detonation spraying of two-layer coatings of aluminum oxide ( Al2O3 ) and a heat-resistant alloy (CoCrAlY) on the surface of a sample made of steel 12X18H10T was studied. A multi-chamber detonation unit was used in the work, providing high speed (up to 1000 m/s) and a 60–80% utilization rate of the sprayed material. We used an oxygen-neutral combustible mixture based on propane-butane. The coating material has a smooth gradient of properties from ceramic to sample substrate The complex of the obtained structural and physical-mechanical properties of the coating material makes it possible to predict its high performance under conditions of high-temperature oxidation.

About the Authors

B. K. Rakhadilov
Sarsen Amanzholov East Kazakhstan University; PlasmaScience LLP
Kazakhstan

Ust-Kamenogorsk



Yu. N. Tyurin
E.O. Paton Electric Welding Institute
Ukraine

Kiev



O. V. Kolisnichenko
E.O. Paton Electric Welding Institute
Ukraine

Kiev



D. N. Kakimzhanov
Sarsen Amanzholov East Kazakhstan University
Kazakhstan

Ust-Kamenogorsk



L. G. Zhurerova
Sarsen Amanzholov East Kazakhstan University
Kazakhstan

Ust-Kamenogorsk



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Review

For citations:


Rakhadilov B.K., Tyurin Yu.N., Kolisnichenko O.V., Kakimzhanov D.N., Zhurerova L.G. Structure and properties of multilayer coatings based on CoCrAlY/Al2O3 obtained by detonation spraying. Eurasian Journal of Physics and Functional Materials. 2022;6(3):234-243. https://doi.org/10.32523/ejpfm.2022060308

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ISSN 2522-9869 (Print)
ISSN 2616-8537 (Online)