PRODUCTION OF NICKEL COMPOSITE MATERIALS REINFORCED WITH ULTRAFINE POWDERS

The purpose of this study was to develop a composite microporous precipitation on a nickel substrate from the electrolytes suspensions with the use of powders of nanosize fraction. As a result of the research, composite materials on a metal substrate (MMC) from electrolytes suspensions with additives of ultrafine powders (UDP) of nanosized fraction obtained from waste of metallurgical industry were obtained and experimentally studied. It has been established that with the use of UDP in the composition of electrolyte suspensions, MMCs are produced, reinforced with ultrafine one-dimensional elements. The effect of the concentration of additives of UDP on the porosity of the substrates and their electrochemical properties (corrosion resistance, electrochemical activity) was established. It is shown that the porosity, the corrosion resistance and the electrochemical activity of MMC are determined by the size of ultrafine elements and their concentration in the electrolyte suspension. The costs of organic additives in electrolytes providing the required surface quality of MMC were determined and optimized. © 2020. All Rights Reserved.