کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1470499 990327 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigation of the effect of disulfiram on corrosion of mild steel in hydrochloric acid solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Investigation of the effect of disulfiram on corrosion of mild steel in hydrochloric acid solution
چکیده انگلیسی

The corrosion inhibition properties of disulfiram (DSR) for mild steel in HCl solution were analyzed by electrochemical impedance spectroscopy (EIS), potentiodynamic polarization, atomic force microscopy, scanning electron microscopy and gravimetric methods. Physical adsorption is proposed for the inhibition and the process followed the Langmuir adsorption isotherm and kinetic/thermodynamic model of El-Awady et al. Constant phase elements describing the non-ideal characteristics of the electrochemical interface are introduced. The occurrence of inductive loop is also dealt with, through the introduction of an inductive element L. The use of these elements significantly improved the quality of fit of simulation to the EIS data.

Research highlights
► Adsorption of disulfiram followed El-Awady’s kinetic-thermodynamic model.
► Constant phase elements are introduced to explain the impedance data.
► Occurrence of inductive loop is dealt with the introduction of an inductive element L.
► The inhibition efficiency of DSR decreased with temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Corrosion Science - Volume 53, Issue 4, April 2011, Pages 1288–1297
نویسندگان
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