Abstract
The inhibiting effect of some amide compounds in a drug form in 1 M HCl solutions on carbon steel has been studied using some chemical and electrochemical techniques as mass reduction (MR), potentiodynamic polarization (PDP), electrochemical impedance spectroscopy measurements (EIS), electrochemical frequency modulation (EFM) techniques. The inhibition efficiency of carbon steel corrosion increases by increasing inhibitor dose. The effect of temperature on the corrosion rate was investigated by mass reduction method as the inhibition efficiency decreases by raising the temperature range. The thermodynamic and adsorption parameters were calculated and discussed. The adsorption of these compounds obeyed Langmuir adsorption isotherm. In addition, surface examination and morphological studies were applied towards the inhibited carbon steel sample by scanning electron microscopy (SEM), energy dispersed X-ray (EDX) and Atomic force microscopy (AFM) techniques.
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Fouda, A.S., El-Desoky, H.S., Abdel-Galeil, M.M. et al. Amide Compounds as Corrosion Inhibitors for Carbon Steel in Acidic Environment. Prot Met Phys Chem Surf 58, 151–167 (2022). https://doi.org/10.1134/S2070205122010105
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DOI: https://doi.org/10.1134/S2070205122010105