The inhibition action of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 al alloy/sicp composite in hydrochloric acid medium

Kini, Achutha U and Shetty, Prakash and Shetty, Divakara S and Isloor, Arun M and Herle, Ramadev (2010) The inhibition action of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 al alloy/sicp composite in hydrochloric acid medium. Journal of Chilean Chemical Society, 55 (1). ISSN 0717-9707

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Abstract

The inhibition behavior of ethyl-2-phenyl hydrozono-3-oxobutyrate on the corrosion of 6061 Al alloy/SiCp composite in 0.1, 0.5 and 1 N hydrochloric acid solution at four different temperatures (30-60 °C) has been investigated using potentiostatic polarization techniques and weight loss method. The results indicated that the corrosion inhibition efficiency and the extent of surface coverage were increased with the increase in inhibitor concentration up to a critical concentration. The adsorption of the inhibitor compound on the composite surface was found to obey Temkins’ and Langmuir adsorption isotherms. The potentiostatic polarization results have revealed that oxobutyrate acts as an efficient cathodic inhibitor for the corrosion of 6061 Al alloy/SiCp composite in HCl medium. The thermodynamic parameters for the corrosion and adsorption processes were determined.

Item Type: Article
Uncontrolled Keywords: Composite materials, Polarization technique, Corrosion, Adsorption.
Subjects: Engineering > MIT Manipal > Mechanical and Manufacturing
Engineering > MIT Manipal > Printing and Media
Depositing User: MIT Library
Date Deposited: 11 Apr 2013 05:58
Last Modified: 11 Apr 2013 05:58
URI: http://eprints.manipal.edu/id/eprint/79637

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