Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments
Joint Authors
Sekunowo, O. I.
Balogun, S. A.
Obiekea, V. D.
Adeosun, Samson Oluropo
Source
International Journal of Corrosion
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-01
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Machines 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.
American Psychological Association (APA)
Adeosun, Samson Oluropo& Sekunowo, O. I.& Balogun, S. A.& Obiekea, V. D.. 2012. Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments. International Journal of Corrosion،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-508777
Modern Language Association (MLA)
Adeosun, Samson Oluropo…[et al.]. Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments. International Journal of Corrosion No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-508777
American Medical Association (AMA)
Adeosun, Samson Oluropo& Sekunowo, O. I.& Balogun, S. A.& Obiekea, V. D.. Corrosion Behaviour of Heat-Treated Aluminum-Magnesium Alloy in Chloride and EXCO Environments. International Journal of Corrosion. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-508777
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-508777