Abstract
The results of studying the structure and properties of composite ceramic coatings produced by microarc oxidation (MAO) on zirconium alloy E110 are presented. To form the coatings, a suspension electrolyte is used with the addition of aluminum-hydroxide nanopowder. It is shown that the addition of the nanopowder results in a substantial increase in the growth rate and thickness of the coating compared with coatings obtained in the same amount of time without the addition of nanopowder to the electrolyte. A decrease in the porosity of coatings with increasing time of microarc oxidation is also revealed. It is found that samples with MAO coatings have a greater resistance to corrosion in an autoclave as compared to uncoated samples.
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Original Russian Text © L.N. Lesnevskiy, M.A. Lyakhovetskiy, S.V. Ivanova, O.A. Nagovitsyna, 2016, published in Poverkhnost’. Rentgenovskie, Sinkhrotronnye i Neitronnye Issledovaniya, 2016, No. 6, pp. 73–80.
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Lesnevskiy, L.N., Lyakhovetskiy, M.A., Ivanova, S.V. et al. Structure and properties of surface layers formed on zirconium alloy by microarc oxidation. J. Surf. Investig. 10, 641–647 (2016). https://doi.org/10.1134/S1027451016030289
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DOI: https://doi.org/10.1134/S1027451016030289