Corrosion inhibitory effect of thiourea on recrystallized E-34 microalloyed steels in acidic media
Abstract
Purpose
The purpose of this paper is to evaluate the effect of thiourea (TU) on corrosion resistance property for rolled and recrystallized E-34 microalloyed steels by using electrochemical polarization techniques.
Design/methodology/approach
To perceive the effect of TU on the corrosion inhibition efficiency, various concentrations of TU (from 1 × 10 − 4 to 1 × 10 − 2M) and different temperatures (20, 30 and 400°C) in 1N sulfuric acid are used.
Findings
It is found that TU has significant inhibition effect on corrosion process. Moreover, it reveals that both the inhibitor concentrations and temperatures have a strong influence on the corrosion prevention efficiency of inhibitor. Thermodynamics studies confirm that the inhibitor adsorption follows the Langmuir adsorption isotherm model.
Originality/value
To the best of the authors’ knowledge, it is the first work that has been disclosed the corrosion inhibitory effect of TU for recrystallized E-34 microalloyed steels in acidic media.
Keywords
Acknowledgements
The authors extend their appreciation to the Center of Excellence for Research in Engineering Materials (CEREM), Advanced Manufacturing Institute and King Saud University, Riyadh 11421, Kingdom of Saudi Arabia, for funding the work.
Citation
Seikh, A.H. and Karim, M.R. (2015), "Corrosion inhibitory effect of thiourea on recrystallized E-34 microalloyed steels in acidic media", Anti-Corrosion Methods and Materials, Vol. 62 No. 4, pp. 212-219. https://doi.org/10.1108/ACMM-12-2013-1338
Publisher
:Emerald Group Publishing Limited
Copyright © 2015, Emerald Group Publishing Limited