MSA  Vol.6 No.11 , November 2015
Corrosion Protection of Iron Alloy Using Peganum harmala Extract as Inhibitor in Acidic Solution
ABSTRACT
This work describes the inhibition effect of different concentration of an aqueous extracted of Peganum harmala seed on the corrosion of carbon steel in 1 M H2SO4 solution using potentiostatic polarization techniques at the temperature range (298 - 328) K. The result showed that the inhibition efficiency increased with increasing of extract inhibitor concentration and temperature. The adsorption of inhibitor on carbon steel surface was fit into Langmuir adsorption isotherm. Kinetic and thermodynamic parameters governing the corrosion and the adsorption process were calculated and discussed.

Cite this paper
Al-Saadie, K. , Abas, H. and Almashhdani, H. (2015) Corrosion Protection of Iron Alloy Using Peganum harmala Extract as Inhibitor in Acidic Solution. Materials Sciences and Applications, 6, 1061-1070. doi: 10.4236/msa.2015.611105.
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