Outstanding inhibitive effect of colchicine on aluminium alloy 6061 corrosion

Journal of Electrochemical Science and Engineering

Nanjanagudu Subba Rao Anantha¹  Mudigere Krishnegowda Pavithra²  Thimmappa Venkatarangaiah Venkateha²  Mudigere Krishnegowda Punith Kumar³ 

[1] Department of Chemistry, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka, India;Department of Chemistry, Kuvempu University, Shankaraghatta-577451, Shimoga, Karnataka;Department of Materials Engineering, Indian Institute of Science, Bangalore-560012, Karnataka;

关键词: Corrosion inhibitor;    Aluminium alloy;    Potentiodynamic polarization;    Electrochemical impedance spectroscopy;    Adsorption isotherm;   

DOI  :  10.5599/jese.185

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown