Comparative study of the structure and properties of homogeneous and gradient Ni-Cr-Al coatings
Abstract
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.
About the Authors
B. K. Rakhadilov
Sarsen Amanzholov East Kazakhstan University; PlasmaScience LLP
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
M. Maulet
Sarsen Amanzholov East Kazakhstan University
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
D. N. Kakimzhanov
PlasmaScience LLP; Institute of Composite Materials
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
O. A. Stepanova
Shakarim University
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
G. B. Botabaeva
Sarsen Amanzholov East Kazakhstan University
Kazakhstan
Kazakhstan
Ust-Kamenogorsk
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Review
Supporting agencies: This paper was performed within the grant financing of scientific research of the Committee of Science of the Ministry of Education and Science of the Republic of Kazakhstan. Grant AP09563506.
For citations:
Rakhadilov B.K., Maulet M., Kakimzhanov D.N., Stepanova O.A., Botabaeva G.B. Comparative study of the structure and properties of homogeneous and gradient Ni-Cr-Al coatings. Eurasian Journal of Physics and Functional Materials. 2022;6(1):47-55.
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