Asian Journal of Research in Chemistry

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Corrosion Inhibition of Aluminium by Molybdate Conversion Coating


Affiliations
1 Department of Chemistry, Government Arts College, Salem-636 007, Tamil Nadu, India
2 Department of Chemistry, Periyar University, Salem-636 011, Tamil Nadu, India
3 School of Display and Chemical Engineering, Yeungnam University, Gyeongsan, Korea, Democratic People's Republic of
     

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Molybdate conversion coatings (MCC) were formed directly on aluminium by simple chemical immersion method at various time intervals, temperatures from various bath composition. The influence of process parameters such as temperature, immersion time and concentration of the corrosion resistance behaviour and surface morphology was studied. The corrosion resistance behaviour was studied by Tafel polarization and Electrochemical Impedance Spectroscopy. The surface morphology of the coatings has been analyzed by Scanning Electron Microscope. The elemental compositions of the coatings are analyzed by Energy dispersive X-ray spectroscopy (EDX).

Keywords

Aluminium, Molybdate Conversion Coatings, Corrosion Resistance, Surface Analysis.
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  • Corrosion Inhibition of Aluminium by Molybdate Conversion Coating

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Authors

M. Sherin Banu
Department of Chemistry, Government Arts College, Salem-636 007, Tamil Nadu, India
V. Raj
Department of Chemistry, Periyar University, Salem-636 011, Tamil Nadu, India
M. Mubarak Ali
School of Display and Chemical Engineering, Yeungnam University, Gyeongsan, Korea, Democratic People's Republic of

Abstract


Molybdate conversion coatings (MCC) were formed directly on aluminium by simple chemical immersion method at various time intervals, temperatures from various bath composition. The influence of process parameters such as temperature, immersion time and concentration of the corrosion resistance behaviour and surface morphology was studied. The corrosion resistance behaviour was studied by Tafel polarization and Electrochemical Impedance Spectroscopy. The surface morphology of the coatings has been analyzed by Scanning Electron Microscope. The elemental compositions of the coatings are analyzed by Energy dispersive X-ray spectroscopy (EDX).

Keywords


Aluminium, Molybdate Conversion Coatings, Corrosion Resistance, Surface Analysis.