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http://dx.doi.org/10.4236/jsemat.2012.23022

has been cited by the following article:

• TITLE: Corrosion Protection of Iron Alloy Using Peganum harmala Extract as Inhibitor in Acidic Solution

  AUTHORS: Khulood Abid Al-Saadie, Hayfaa Ameer Abas, Haider Abdulkareem Yousif Almashhdani

  KEYWORDS: Corrosion, Carbon Steel, Seed, Peganum harmala, Acidic Solution

  JOURNAL NAME: Materials Sciences and Applications, Vol.6 No.11, November 27, 2015

  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.