INFLUENCE OF IONIZING RADIATION ON THE CORROSION RESISTANCE OF ZnNi/SiO2 COMPOSITE COATINGS

The infl uence of x-ray radiation on the protective properties of ZnNi/SiO₂ composite coatings has been investigated experimentally, and the optimal regimes of their electrodeposition on irradiation by the method of complete factor experiment have been revealed. It is shown that the action of x-ray radiation on the electrolytes used for electrodeposition of ZnNi/SiO₂ leads to an increase in their dispersive power, which makes it possible to form composite coatings with the metal uniformly distributed over the surface and, correspondingly, with elevated corrosion resistance. It has been found that the action of x-ray radiation on the process of electric deposition of ZnNi/SiO₂ coatings promotes formation of layers with enhanced anticorrosion properties. Based on experimental data and according to the method of complete factor experiment, the infl uence of variations in the x-ray radiation exposure dose power and concentration of SiO₂ nanoparticles in the electrolyte on the dispersive power of electrolytes and corrosion resistance of ZnNi/SiO₂ coatings has been considered. Regression equations have been obtained, an analysis of the coeffi cients of which allowed the conclusion that a maximum increase in the dispersive power and a decrease in the rate of appearance of corrosion products on ZnNi/SiO₂ coatings are achieved on combination of two factors: addition of SiO₂ nanoparticles to the electrolyte and irradiation of the electrolyte by x-ray radiation in the process of coating deposition. The developed statistical model allows one to adequately determine the optimal concentrations of SiO₂ nanoparticles in an electrolyte and the regime of x-ray irradiation for obtaining coatings with enhanced anticorrosive properties.
The infl uence of x-ray radiation on the protective properties of ZnNi/SiO₂ composite coatings has been investigated experimentally, and the optimal regimes of their electrodeposition on irradiation by the method of complete factor experiment have been revealed. It is shown that the action of x-ray radiation on the electrolytes used for electrodeposition of ZnNi/SiO₂ leads to an increase in their dispersive power, which makes it possible to form composite coatings with the metal uniformly distributed over the surface and, correspondingly, with elevated corrosion resistance. It has been found that the action of x-ray radiation on the process of electric deposition of ZnNi/SiO₂ coatings promotes formation of layers with enhanced anticorrosion properties. Based on experimental data and according to the method of complete factor experiment, the infl uence of variations in the x-ray radiation exposure dose power and concentration of SiO₂ nanoparticles in the electrolyte on the dispersive power of electrolytes and corrosion resistance of ZnNi/SiO₂ coatings has been considered. Regression equations have been obtained, an analysis of the coeffi cients of which allowed the conclusion that a maximum increase in the dispersive power and a decrease in the rate of appearance of corrosion products on ZnNi/SiO₂ coatings are achieved on combination of two factors: addition of SiO₂ nanoparticles to the electrolyte and irradiation of the electrolyte by x-ray radiation in the process of coating deposition. The developed statistical model allows one to adequately determine the optimal concentrations of SiO₂ nanoparticles in an electrolyte and the regime of x-ray irradiation for obtaining coatings with enhanced anticorrosive properties.
Author:  D. V. Lavysh, N. G. Val′ko, V. M. Anishchik, R. R. Korennoi, Milan Šebok
Keywords:  electrocrystallization, x-ray radiation, current effi ciency, regression equations, factor, criteria, adequacy
Page:  633-636