• Vol 1, No 1 (2010)
  • Mechanical Engineering

Evaluation of Inhibitive Action of Sodium Benzoate on Corrosion Behavior of Aa6063 in Seawater

W.B. Wan Nik, O. Sulaiman, S.G. Eng Giap, R. Rosliza


Publish at : 01 Jul 2010
IJtech : IJtech Vol 1, No 1 (2010)
DOI : https://doi.org/10.14716/ijtech.v1i1.39

Cite this article as:
Nik, W.W., Sulaiman, O., Giap, S.E., Rosliza, R., 2010. Evaluation of Inhibitive Action of Sodium Benzoate on Corrosion Behavior of Aa6063 in Seawater. International Journal of Technology. Volume 1(1), pp. 20-28
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W.B. Wan Nik Faculty of Maritime Studies and Marine Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
O. Sulaiman Faculty of Maritime Studies and Marine Science, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
S.G. Eng Giap Faculty of Science and Technology, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia
R. Rosliza TATi University College, Teluk Kalung, 24000, Kemaman, Terengganu, Malaysia
Email to Corresponding Author

Abstract
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Corrosion is a fundamental process which plays an important role in economics and safety. Apparently, corrosion cannot be avoided, but its severity can be prevented. Inhibitors have always been considered to be the first line of defense against corrosion. Several corrosion inhibitors are available today. The objective of this study was to evaluate the effectiveness of sodium benzoate as an inhibitor to slow down or prevent corrosion. This project involves the use of gravimetric measurements, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) to evaluate inhibitive action of sodium benzoate on corrosion behavior of AA6063 aluminium alloy in seawater. The electrochemical measurements showed that the presence of sodium benzoate as an inhibitor significantly decrease the weight loss, corrosion current densities (icorr), corrosion rates and double layer capacitance (Cdl), whilst increasing the polarization resistance (Rp).

Adsorption, Aluminium Alloy, EIS, Polarization, Weight loss

References

Abd El Rahim, SS., Hassan, HH. & Amin, MA., 2003. The corrosion inhibition study of sodium dodecyl sulphonate to aluminum and its alloy in 1.0 M HCl solution. Mater Chem Phys, Volume 78, pp.337-348, Elsevier.

Al-Juhni, AA. & Newby, BZ., 2006. Incorporation of benzoic acid and sodium benzoate into silicone coatings and subsequent leaching of the compound from the incorporated coatings.,

Prog Org Coatings, Volume 56, pp.135-145, Elsevier.

Badawy, WA., Al-Kharafi, FM. & El-Azab, AS., 1999. Electrochemical behaviour and corrosion inhibition of Al, Al-6061 and Al-Cu in neutral aqueous solutions, Corros Sci, Volume 41, pp.709-727, Elsevier.

Baorong, H., Jinglei, Z., Yanxu, L. & Fangying, Y., 2001. Study on effect of seawater saliniyu on electrochemical performance of Al anodes, Department of Marine Corrosion, Institute of Oceanology, Chinese Academy of Sciences, China.

Bethencourt, M., Botana, FJ., Cauqui, MA., Marcos, M. & Rodriguez, MA., 1997. Protection against corrosion in marine environments of AA5083 Al-Mg alloy by lanthanide chlorides. Alloys Compounds, Volume 250, pp.455-460, Elsevier.

El-Etre, AY., 2003. Inhibition of aluminum corrosion using Opuntia extract, Corros Sci, Volume 45, pp.2485-2495, Elsevier.

Hollingsworth, EH. & Hunsicker, HY., 1987. Corrosion of aluminum and aluminum alloys, ASM Metals Handbook, Volume 13, pp.582-609.

Reis, FM., de Melo, HG. & Costa, I., 2006. EIS investigation on Al 5052 alloy surface preparation for self-assembling monolayer, Electrochimica Acta, Volume 51, pp.1780-1788, Elsevier.

Rosalbino, F., Angelini, E., De Negri, S., Saccone, A. & Delfino, S., 2006. Electrochemical behavior assessment of novel Mg-rich Mg-Al-RE alloys (RE=Ce, Er), Intermetallics, Volume 14, pp.1487-1492, Elsevier.

Rosliza, R., Wan Nik, WB. & Senin, HB., 2008a. The effect of inhibitor on the corrosion of aluminum alloys in acidic solutions, Mater Chem Phys, Volume 107, pp.281-288, Elsevier.

Rosliza, R., Senin, HB. & Wan Nik, WB., 2008b. Electrochemical properties and corrosion inhibition of AA6061 in tropical seawater. Colloids Surf A, Volume 312, pp.185-189, Elsevier.

Trabanelli, G., Monticelli, C., Grassi, V. & Frignani, A., 2005. Electrochemical study on inhibitors of rebar corrosion in carbonated concrete, Cement Concrete Research, Volume 35, pp.1804-1813, Elsevier.

Yagan, A., Pekmez, NO. & Yildiz, A., 2006. Corrosion inhibition by poly (N-ethylaniline) coatings of mild steel in aqueous acidic solutions, Prog Org Coatings, Volume 57, pp.314-318, Elsevier.

Abd El Rahim, SS., Hassan, HH. & Amin, MA., 2003. The corrosion inhibition study of sodium dodecyl sulphonate to aluminum and its alloy in 1.0 M HCl solution. Mater Chem Phys, Volume 78, pp.337-348, Elsevier.

Al-Juhni, AA. & Newby, BZ., 2006. Incorporation of benzoic acid and sodium benzoate into silicone coatings and subsequent leaching of the compound from the incorporated coatings.,

Prog Org Coatings, Volume 56, pp.135-145, Elsevier.

Badawy, WA., Al-Kharafi, FM. & El-Azab, AS., 1999. Electrochemical behaviour and corrosion inhibition of Al, Al-6061 and Al-Cu in neutral aqueous solutions, Corros Sci, Volume 41, pp.709-727, Elsevier.

Baorong, H., Jinglei, Z., Yanxu, L. & Fangying, Y., 2001. Study on effect of seawater saliniyu on electrochemical performance of Al anodes, Department of Marine Corrosion, Institute of Oceanology, Chinese Academy of Sciences, China.

Bethencourt, M., Botana, FJ., Cauqui, MA., Marcos, M. & Rodriguez, MA., 1997. Protection against corrosion in marine environments of AA5083 Al-Mg alloy by lanthanide chlorides. Alloys Compounds, Volume 250, pp.455-460, Elsevier.

El-Etre, AY., 2003. Inhibition of aluminum corrosion using Opuntia extract, Corros Sci, Volume 45, pp.2485-2495, Elsevier.

Hollingsworth, EH. & Hunsicker, HY., 1987. Corrosion of aluminum and aluminum alloys, ASM Metals Handbook, Volume 13, pp.582-609.

Reis, FM., de Melo, HG. & Costa, I., 2006. EIS investigation on Al 5052 alloy surface preparation for self-assembling monolayer, Electrochimica Acta, Volume 51, pp.1780-1788, Elsevier.

Rosalbino, F., Angelini, E., De Negri, S., Saccone, A. & Delfino, S., 2006. Electrochemical behavior assessment of novel Mg-rich Mg-Al-RE alloys (RE=Ce, Er), Intermetallics, Volume 14, pp.1487-1492, Elsevier.

Rosliza, R., Wan Nik, WB. & Senin, HB., 2008a. The effect of inhibitor on the corrosion of aluminum alloys in acidic solutions, Mater Chem Phys, Volume 107, pp.281-288, Elsevier.

Rosliza, R., Senin, HB. & Wan Nik, WB., 2008b. Electrochemical properties and corrosion inhibition of AA6061 in tropical seawater. Colloids Surf A, Volume 312, pp.185-189, Elsevier.

Trabanelli, G., Monticelli, C., Grassi, V. & Frignani, A., 2005. Electrochemical study on inhibitors of rebar corrosion in carbonated concrete, Cement Concrete Research, Volume 35, pp.1804-1813, Elsevier.

Yagan, A., Pekmez, NO. & Yildiz, A., 2006. Corrosion inhibition by poly (N-ethylaniline) coatings of mild steel in aqueous acidic solutions, Prog Org Coatings, Volume 57, pp.314-318, Elsevier.