Author/Authors :
Abdulwahab, M. Tshwane University of Technology - Department of Chemical and Metallurgical Engineering, South Africa , Abdulwahab, M. Ahmadu Bello University - Department of Metallurgical and Materials Engineering, Nigeria , Kasim, A. Ahmadu Bello University - Department of Metallurgical and Materials Engineering, Nigeria , Fayomi, O. S. I. Tshwane University of Technology - Department of Chemical and Metallurgical Engineering, South Africa , Fayomi, O. S. I. Covenant University - Department of Mechanical Engineering, Nigeria , Asuke, F. Ahmadu Bello University - Department of Metallurgical and Materials Engineering, Nigeria , Popoola, A. P. I. Tshwane University of Technology - Department of Chemical and Metallurgical Engineering, South Africa
Abstract :
The corrosion assessment of mild steel in H2SO4-Arachis hypogeae natural oils have been studied using electrochemical technique. The surface morphology of as-corroded samples was assessed with scanning electron microscopy equipped with energy dispersive spectroscopy (SEM-EDS). The results revealed that corrosion rate of mild steel with Arachis hypogeae-H2SO4 environment decreased significantly. Results of the linear polarization indicate a higher potential value and inhibitor efficiency of 98.68, 86.87 and 97.10% at 100%v/v Arachis hypogeae with an increase in polarization resistance (Rp) and lower current density for the inhibited samples than the uninhibited mild steel. There exists some level of correlation in the corrosion efficiency between the methods used as criteria for the corrosion evaluation of mild steel/Arachis hypogeae in 2M H2SO4 solution
Keywords :
Arachis hypogeae , Inhibitor efficiency , SEM , EDS , thin film
