Karbon Çeliğinin Hidroklorik Asit Çözeltisindeki Korozyonuna Allantoin İçeren Schiff Bazınınİnhibitör Etkisi

Year 2012, Volume: 14 Issue: 1, 1 - 13, 01.06.2012

Elif Çalışkan A. Ali Gürten Hülya Keleş Emel Bayol

Abstract

1,0 M HCl çözeltisi içerisinde 293 K’de yumuşak çeliğin korozyon davranışı üzerine (E)-1-(2-hidroksi-5-metoksibenziliden)-3-(2,5-diokzoimidazolin-4-il) molekülünün inhibitör etkisi araştırılmıştır. ALMS molekülünün korozyon inhibisyon etkinliği lineer polarizasyon direnci, potansiyodinamik polarizasyon eğrileri ve ACimpedans yöntemleri kullanılarak değerlendirilmiştir. Schiff bazının yumuşak çelik yüzeyine adsorpsiyonun Langmuir adsorpsiyon izotermine uyduğu görülmüştür. Adsorpsiyon izoterminden yararlanarak termodinamik adsorpsiyon parametreleri olan adsorpsiyon denge sabiti ve adsorpsiyon serbest enerjisi değeri hesaplanmıştır

Keywords

Yumuşak çelik, schiff bazı, korozyon inhibitörü, SEM, AFM

The Inhibition Effect of Schiff Base Compound Containing Allantoin on Carbon Steel Corrosion in Hydrochloric Acid Solution

Abstract

The effect of (E)-1-(2-hydroxy-5-methoxybenzylidene)-3-(2,5-dioxoimidazolidin-4-yl) urea (ALMS) on corrosion behaviour of mild steel in 1.0 M HCl has been investigated at 293 K. The corrosion inhibition efficiency of ALMS has been evaluated by using potentiodynamic polarization curves, linear polarization resistance and electrochemical impedance spectroscopy techniques. ALMS molecule appears to function through the Langmuir adsorption isotherm. Thermodynamic parameters of adsorption of studied molecule were calculated using adsorption isotherm

Keywords

Mild steel, schiff base, corrosion inhibitor, SEM, AFM

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