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- Title
CORROSION CHARACTERIZATION OF As - CAST COMMERCIAL Al - BASED ALLOY SYSTEM IN SELECTED AQUEOUS MEDIA.
- Authors
Idenyi, N. E.; Ekuma, C. E.; Owate, I. O.; Okeke, C. E.
- Abstract
Corrosion characterization of commercial as - cast Al - based alloy has been studied in 0.1M HCl and seawater respectively. The general corrosion trend of passivating metals which aluminium belong to are generally observed but with markedly severity in the acidic environment. This behavior is attributed to the increasing electrical conductivity of the solutions; a consequence of increasing solubility of the media which progressively increased before declining due to the immobility of current carrying ions. The stress - strain test showed that there is a direct relationship between the alloy composition and, the loading force and yielding points. The microstructure analysis carried out via the optical micrographs reveal that the corrosion trend is generally homogeneous with absent of pitting or any form of localized attack in all the samples.
- Subjects
CORROSION &; anti-corrosives; ALLOYS; SEAWATER; AQUEOUS polymeric coatings; MICROGRAPHICS; ALUMINUM; MICROSCOPY; SOLUBILITY; IONS
- Publication
Chalcogenide Letters, 2009, Vol 6, Issue 8, p367
- ISSN
1841-4834
- Publication type
Article