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Silicone oil as corrosion inhibitor for aluminium alloy in saline medium

Sanni, O. and Popoola, A. P. I. and Fayomi, O. S. I and Fatoba, OS (2017) Silicone oil as corrosion inhibitor for aluminium alloy in saline medium. International Journal of Microstructure and Materials Properties, 12 (1-2). pp. 115-125.

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Abstract

Corrosion processes are responsible for huge losses in the industry. This deterioration of components results in loss of plant efficiency, total shutdown and aggressive damage in industries. Though organic, inorganic and mixed material inhibitors were used for a long time to combat corrosion, the environmental toxicity of inorganic corrosion inhibitors has prompted the search for organic corrosion inhibitors. In the search for this, the present study aims to investigate the inhibition action of silicone oil and their protective performance for aluminium alloy in 3.5% NaCl solution using electrochemical tests. Weight loss, corrosion rate, inhibition efficiency and potentiodynamic polarisation techniques were used in this study. The aluminium alloy samples exposed to the inhibitor showed a lower corrosion rate values and excellent polarisation resistance as compared with the corrosion rate samples without inhibitor. The corrosion inhibition rate increases with increasing the concentration of the silicone oil. The adsorption isotherm was confirmed by Langmuir adsorption isotherm.

Item Type: Article
Uncontrolled Keywords: silicone oil, inhibition, corrosion, corrosion rate, aluminium alloy
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Mrs Hannah Akinwumi
Date Deposited: 08 Nov 2017 12:54
Last Modified: 08 Nov 2017 12:54
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/9618

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