Structure and properties of multilayer coatings based on CoCrAlY/Al2O3 obtained by detonation spraying
| Autor: | B.K. Rakhadilov, Yu.N. Tyurin, O.V. Kolisnichenko, D.N. Kakimzhanov, L.G. Zhurerova |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Eurasian Journal of Physics and Functional Materials, Vol 6, Iss 3, Pp 234-243 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2522-9869 2616-8537 |
| DOI: | 10.32523/ejpfm.2022060308 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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