Outstanding inhibitive effect of colchicine on aluminium alloy 6061 corrosion

Authors

  • Mudigere Krishnegowda Pavithra Department of Chemistry, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka
  • Thimmappa Venkatarangaiah Venkateha Department of Chemistry, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka
  • Mudigere Krishnegowda Punith Kumar Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, Karnataka
  • Nanjanagudu Subba Rao Anantha Department of Chemistry, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka, India

DOI:

https://doi.org/10.5599/jese.185

Keywords:

Corrosion inhibitor, Aluminium alloy, Potentiodynamic polarization, Electrochemical impedance spectroscopy, Adsorption isotherm

Abstract

The corrosion protection ability of colchicine (CC) on Aluminium alloy 6061 (AA6061) in 3.5% NaCl medium was examined by potentiodynamic polarization, electrochemical impedance, and chronoamperometric techniques. About 99 % of protection efficiency was achieved by 2 mM concentration of CC in 3.5% NaCl solution.The adsorption of CC on AA6061 surface obeys Langmuir isotherm by following both physisorption and chemisorption mechanism. Variation in the surface morphology of inhibited and uninhibited metal samples was examined by scanning electron microscopy.

 

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Published

26-09-2015

Issue

Vol. 5 No. 3 (2015)

Section

Electrochemical Science

License

Creative Commons лиценца
Articles are published under the terms and conditions of the
Creative Commons Attribution license 4.0 International.

How to Cite

Outstanding inhibitive effect of colchicine on aluminium alloy 6061 corrosion. (2015). Journal of Electrochemical Science and Engineering, 5(3), 197-208. https://doi.org/10.5599/jese.185

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