Structure and properties of multilayer coatings based on CoCrAlY/Al2O3 obtained by detonation spraying
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.
Keywords
About the Authors
B. K. Rakhadilov
Sarsen Amanzholov East Kazakhstan University; PlasmaScience LLP
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
Yu. N. Tyurin
E.O. Paton Electric Welding Institute
Ukraine
Ukraine
Kiev
O. V. Kolisnichenko
E.O. Paton Electric Welding Institute
Ukraine
Ukraine
Kiev
D. N. Kakimzhanov
Sarsen Amanzholov East Kazakhstan University
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
L. G. Zhurerova
Sarsen Amanzholov East Kazakhstan University
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
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Review
Supporting agencies: This research has been funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP08857733).
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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