Mechanical Engineering / Sustainable Energy Session:

Title:           Comparative study of EPHO and CBTC as Corrosion inhibitors for 15 Vol. % 6061 Al Alloy/SiCp Composite in 1 M Hydrochloric Acid Medium
Authors:      U. Achutha Kini, S. S. Sharma, K. Jagannatha, P. R. Prabhu, C. Bhat, Prakash Shetty, S. Divakara Shetty, Arun Isloor
Abstract:     The corrosion inhibition effect of Ethyl-2-phenyl hydrozono-3-oxobutyrate (EPHO) and 2-chloro- 1-benzothiophene-3-carbohydrazide (CBTC) on 6061 Al alloy/SiCp composite in 1 M hydrochloric acid solution at 30, 40, 50 and 60 °C has been investigated using potentiostatic polarization technique and weight loss method. Both EPHO and CBTC are efficient cathodic inhibitors with 82 % and 88% inhibition efficiencies. The adsorption of the inhibitors on the composite surface was found to obey Langmuir adsorption isotherm and the inhibition is governed by mixed adsorption mechanism.

Keywords:   Corrosion inhibition, Composite, Potentio-static polarization, Langmuir adsorption isotherm, Mixed adsorption.
Pages:          355-359

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