Chemical and Biomolecular Engineering Faculty Research


Electrochemical Characterization of the Mg-al Foamed Materials in Nacl Solutions

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Publication Date

Fall 2010


The AlMg-alloy was made by melting Al and Mg ingot pieces in an alumine crucible, kept in a resistance electrical furnace. The molten alloy was poured into steel containers with NaCl crystals, in order to produce the foamed material. After solidification the salt was removed using hot water. The corrosion resistance properties of the material are characterized by electrochemical techniques. The potentiodynamic polarization and electrochemical impedance spectroscopy were used to elucidate the interfacial mechanisms of the alloy when exposed to 3.5% NaCl (reagent grade) at room temperature. The evolution of dissolution under different exposure conditions was used to characterized the corrosion rate in corrosive environment. Key words: Al-Mg alloys, electrochemical characterization, metallic foams.



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