Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20522#.VNhtIizQrzE Author(s) L.E. Umoru , O.O. Ige Affiliation(s) Dept of Materials Science & Engineering,Obafemi Awolowo University, Ile-Ife. . Dept of Materials Science & Engineering,Obafemi Awolowo University, Ile-Ife. . ABSTRACT This work has investigated the effect of tin composition on Al-Zn-Mg alloy as sacrificial anode in seawater. Corrosion experiments were mounted to determine the optimal effect of tin on the efficiencies of the aluminium alloy anodes. The corroded and unexposed sample surfaces were subject to microstructural characterization using optical microscopy technique. Al-Zn-Mg alloy doped with 0%, 0.01%, 0.05% and 0.1% by weights of tin were prepared to determine the effect of tin on anode efficiency in the environment. The different microstructures of the Al-Zn-Mg-Sn alloy evolved were correlated with the anode efficienci...
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