Abstract
Based on the impedance models of porous layer, anodic behavior of silver as a component of Ag-Cu alloys in aqueous sulfuric acid solutions is analyzed. It is shown that, in order to adequately describe the electrochemical process, chemical decomposition of superficial passivating silver-sulfate layer should be taken into account. Decomposition rate constants of the layer on silver-copper alloys of diverse composition are calculated.
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