JFAS_Vol 07 N 02

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Browsing JFAS_Vol 07 N 02 by Author "Prasanna, B. M."

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    Anticorrosion Potential Of Hydralazine For Corrosion Of Mild Steel In 1m Hydrochloric Acid Solution
    (University of Eloued جامعة الوادي, 2015-05-01) Prasanna, B. M.; Praveen, B. M.; Hebbar, N.; Venkatesha, T.v.
    Anticorrosion potential of mild steel by Hydralazine as corrosion inhibitor for mild steel in 1M hydrochloric acid was investigated by chemical and electrochemical measurements at 303-333 K temperature. The maximum inhibition efficiency of inhibitor by Weight loss method is around 90%, Tafel polarization method is around 85%; electrochemical impedance spectroscopy measurement around 90% at 1250 ppm of Hydralazine in. The result shows that the inhibition efficiency increases with I 1M hydrochloric acid. Hydralazine acts as a mixed type inhibitor which inhibits the corrosion of mild steel due to the adsorption on metal surface. This adsorption system obeys the Langmuir adsorption isotherm.Activation parameters explains the effect of temperature with inhibition efficiency of inhibitor molecule.SEM images of inhibited mild steel strips shows a formation of passive protective film over the surface.
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    Corrosion Inhibition Behavior Of Ketosulfone For Zinc In Acidic Medium
    (University of Eloued جامعة الوادي, 2015-05-01) Hebbar, N.; Praveen, B. M.; Prasanna, B. M.; Venkatarangaiah Venkatesha, T.
    The corrosion inhibition behavior of Ketosulfone for zinc is investigated by polarization and AC-impedance techniques at 303-333K. The Tafel plots indicates that the Ketosulfone is a mixed type inhibitor. The interaction between metal and inhibitor is explained by Langmuir adsorption isotherm. G0ads and H0ads value indicates the electrostatic interactions between metal and inhibitor. Calculated activation parameters explains the corrosion process. SEM images show the difference between inhibited solutions and blank solution.