Rezumat
CZU 621.794.42:546.56
The mechanism of electrochemical ionization and passivation of brass Cu 62 Zn in chloride solutions has been studied. The electrochemical dissolution of Cu 62 Zn alloy in concentrated chloride solutions is shown to be controlled by ionization of the copper component in the alloy. The dissolution selectivity of brass Cu 62 Zn components and surface modification of the alloy during electrochemical etching have been studied. A possibility has been described of the smooth electrochemical dissolution of α-brass in an acid medium, in the presence of chlorine ions and oxidizer Fe3+ .
Keywords: brass, ionization, etching solution, dissolution selectivity.