Electrochemical behaviour of Al, Al–Sn, Al–Zn and Al–Zn–Sn alloys in chloride solutions containing indium ions

作者: H. A. El Shayeb , F. M. Abd El Wahab , S. Zein El Abedin

DOI: 10.1023/A:1003425306696

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摘要: The electrochemical behaviour of pure aluminium and three of its alloys were investigated in 0.6 m NaCl in the presence and absence of In3+ ions. The study comprised polarization and potentiostatic current–time measurements complemented by SEM–EDAX investigation. In 0.6 m NaCl the corrosion resistance of the alloys decreases in the following order: Al< Al–Sn< Al–Zn≃ Al–Zn–Sn. The addition of In3+ ions to the test electrolyte revealed activation of pure Al which increases with increase of In3+ concentration. Similar results were obtained …

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