Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments

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dc.contributor.authorAdeosun, S.O.
dc.contributor.authorBalogun, S.A.
dc.contributor.authorObiekea, V.D.
dc.contributor.authorSekunowo, O.I.
dc.date.accessioned2020-03-28T16:34:07Z
dc.date.available2020-03-28T16:34:07Z
dc.date.issued2012
dc.description.abstractMachines designed to operate in marine environment are generally vulnerable to failure by corrosion. It is therefore imperative that the corrosion susceptibility of such facilities is evaluated with a view to establishing mechanism for its mitigation. In this study, the corrosion behaviour of as-cast and retrogression-reagion (RRA) specimens of aluminum alloy containing 0.4–2.0 percent magnesium additions in NaCl, FeCl3, and EXCO solutions was investigated. The corrosion simulation processes involved gravimetric and electrochemical techniques. Results show substantial inducement of Mg2Si precipitates at a relatively higher magnesium addition, 1.2–2.0 percent, giving rise to increased attack. This phenomenon is predicated on the nature of the Mg2Si crystals being anodic relative to the alloy matrix which easily dissolved under attack by chemical constituents. Formation of Mg2Si intermetallic without corresponding appropriate oxides like SiO2 and MgO, which protect the precipitates from galvanic coupling with the matrix, accentuates susceptibility to corrosion.en_US
dc.identifier.citationAdeosun, S.O.; Sekunowo, O.I.; Balogun, S.A.; Obiekea, V.D. (2012). Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments. Hindawi Publishing Corporation International Journal of Corrosion; 2012: Article ID 927380, 1-9.en_US
dc.identifier.uridoi:10.1155/2012/927380
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/8168
dc.language.isoenen_US
dc.publisherHindawi Publishing Corporation International Journal of Corrosionen_US
dc.titleCorrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environmentsen_US
dc.typeArticleen_US
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