Title of article
Inhibition of API 5L Gr.B Carbon Steel Corrosion using Licorice Extract in CO2 Environment
Author/Authors
Bajelani, Ali Department of Materials Engineering - Bu-Ali Sina University , Fattah-alhosseini, Arash Department of Materials Engineering - Bu-Ali Sina University
Pages
14
From page
409
To page
422
Abstract
The corrosion inhibition effect of Licorice hydroalcoholic extract (Licorice extract) was investigated as a green corrosion inhibitor for API 5L Gr.B carbon steel in CO2 environment, using Tafel polarization and electrochemical impedance spectroscopy (EIS) methods. The results showed that Licorice extract can be effective corrosion inhibitor in the CO2 environment and act as an anodic inhibitor. The measurement data revealed that inhibition efficiency increased with the increase of Licorice extract concentration. Thermodynamic calculations indicated that adsorption behavior of Licorice extract on the steel surface obeys Langmuir adsorption isotherm and Licorice extract physically-chemically adsorbed on the steel surface in which adsorption process was spontaneous.
Keywords
Carbon steel , CO2 corrosion , Green inhibitor , Licorice extract , Langmuir
Journal title
Astroparticle Physics
Serial Year
2016
Record number
2418681
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