Abstract
In open‐circuit potential measurements of certain Cu‐based alloys in solutions oscillations were observed in Cu‐Al and Cu‐Ag‐Al. Studies with various electrolyte concentrations and rotation speeds of the electrode led to a possible explanation of the phenomenon in terms of Al dissolution altering the main Cu dissolution/passivation process. The accumulation of aluminate ions on the interphase and its transportation to the bulk solution are the main causes of the oscillations.
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