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STUDY OF THE ELECTROCHEMICAL BEHAVIOR AND SURFACE INTERACTION OF AA6063 TYPE AL-MG-SI ALLOY BY SODIUM MOLYBDATE IN SIMULATED SEA WATER ENVIRONMENT

Fayomi, O. S. I and Abdulwahab, M and Durodola, B. M. and Popoola, A. P. I. and Joshua, T.O and Alao, A.O. and Joseph, O. O and Inegbenebor, A.O. (2013) STUDY OF THE ELECTROCHEMICAL BEHAVIOR AND SURFACE INTERACTION OF AA6063 TYPE AL-MG-SI ALLOY BY SODIUM MOLYBDATE IN SIMULATED SEA WATER ENVIRONMENT. International Journal of Management, Information Technology and Engineering, 1 (3). pp. 159-166.

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Abstract

The potential of sodium molybdate on the corrosion of aluminium alloy AA6063 type was examined with the view to study the electrochemical and surface degradation for metal-inhibitor interface using gravimetric and electrochemical corrosion techniques in simulated s~awater environment. The microstructures of as-corroded samples were also assessed for their surface morphology.The results show thatcorrosion rate decreased with an increase in the inhibitor concentration and exposure time. Equally, the inhibition efticiency increased with inhibitor addition with maximum efficiency obtained at 5g/v sodium molybdate addition. The adsorption of the molecules of the extract on the aluminium alloy surface obeyed the Langmuir adsorption isotherm. The potentiodynamic polarization results showed that sodium molybdate acted as mixed-type i•1hibitor.

Item Type: Article
Uncontrolled Keywords: Adsorption. Surface Interaction, Sodium Molybdate. Corrcsion Rate
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: 14 Apr 2015 15:31
Last Modified: 14 Apr 2015 15:31
URI: http://eprints.covenantuniversity.edu.ng/id/eprint/5004

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