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Corrosion inhibition of 6061 al-alloy using a bio polymer

Charitha, B P and Padmalatha, * (2017) Corrosion inhibition of 6061 al-alloy using a bio polymer. In: Second international conference on electrochemical Sciences and technology, 10/08/2017, Dept of IPC; I.I.Sc Bengaluru.

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Abstract

Pullulan, a biopolymer was used as an eco-friendly inhibitor to control the corrosion of 6061Al-alloy in 0.05 and 0.1 M HCl medium. The electrochemical studies like potentiodynamic polarization method, electrochemical impedance spectroscopy techniques were adopted. Evaluation of kinetic and thermodynamic parameters was done. Inhibitor adsorption on the surface of the composite was confirmed by surface morphology studies like SEM and EDX studies. Maximum inhibition efficiency of 70% was obtained at 303 K for 0.05 M HCl. Pullulan acted as mixed type of inhibitor, underwent physical adsorption and followed Freundlich adsorption isotherm.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: 6061 Al-alloy; Pullulan; Green inhibitor; PDP; EIS; SEM
Subjects: Engineering > MIT Manipal > Chemistry
Depositing User: MIT Library
Date Deposited: 08 Sep 2017 10:14
Last Modified: 08 Sep 2017 10:14
URI: http://eprints.manipal.edu/id/eprint/149657

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