Comparative study of the structure and properties of homogeneous and gradient Ni-Cr-Al coatings
| Autor: | B. K. Rakhadilov, M. Maulet, D. N. Kakimzhanov, O. A. Stepanova, G. B. Botabaeva |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Eurasian Journal of Physics and Functional Materials, Vol 6, Iss 1, Pp 47-55 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2522-9869 2616-8537 |
| Popis: | This paper compares the structure and properties of homogeneous and gradient coatings in the Ni-Cr-Al system obtained by detonation spraying. According to X-ray analysis, only the CrNi3 phase appears in the homogeneous coating, and CrNi3 , Al, and NiAl phases appear on the gradient coating. The elements distribution graphs show that a small amount of aluminum is distributed over the depth of the homogeneous coating and in the gradient coating. The distribution of aluminum in the gradient Ni-Cr-Al coating gradually increases from the depth to the surface, and a high amount of aluminum forms in the coating surface. According to EDS analysis, a small amount of aluminium is distributed on the surface of the homogeneous coating and a large amount on the gradient coating. In the gradient coating, aluminium gradually increases from the substrate surface to the coating surface. Also, the gradient coating has a higher hardness than the homogeneous coating. |
| Databáze: | Directory of Open Access Journals |
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