Corrosion inhibitor film forming in aerated and deaerated solutions

Ahmed Y. Musa, Abdul Amir H. Kadhum, Abu Bakar Mohamad

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The behavior of corrosion inhibitor (4-amino-5-phenyl-4H-1, 2, 4-trizole-3-thiol (APTT)) film under turbulent flow condition in oxygenated and de aerated solutions was studied. Turbulent flow condition experiments were simulated by rotating cylinder electrode (RCE). Change of open circuit potential (OCP) with immersion time, Direct-current (potentiodynamic polarization) and alternating-current (electrochemical impedance spectroscopy (EIS)) were used to study the effect of turbulent flow on the formation of inhibitor film. OCP was observed to shift toward positive values in oxygenated solution and shifted toward negative values in de aerated solution with rotation rate. Inhibition efficiencies were decreased with rotation rate in oxygenated solution, while it kept almost constant in de aerated solution. Results obtained from changes of open circuit potential (OCP) with immersion time, potentiodynamic polarization, and impedance measurements are in good agreement and indicated that the formation and the development of the inhibitor film were flow rate dependant.

Original languageEnglish
Pages (from-to)1911-1921
Number of pages11
JournalInternational Journal of Electrochemical Science
Volume5
Issue number12
Publication statusPublished - Dec 2010

Fingerprint

Corrosion inhibitors
Turbulent flow
Potentiodynamic polarization
Networks (circuits)
Electrochemical impedance spectroscopy
Sulfhydryl Compounds
Flow rate
Electrodes
Experiments

Keywords

  • APTT
  • Corrosion
  • Inhibitor film
  • Turbulent flow

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Musa, A. Y., Kadhum, A. A. H., & Mohamad, A. B. (2010). Corrosion inhibitor film forming in aerated and deaerated solutions. International Journal of Electrochemical Science, 5(12), 1911-1921.

Corrosion inhibitor film forming in aerated and deaerated solutions. / Musa, Ahmed Y.; Kadhum, Abdul Amir H.; Mohamad, Abu Bakar.

In: International Journal of Electrochemical Science, Vol. 5, No. 12, 12.2010, p. 1911-1921.

Research output: Contribution to journalArticle

Musa, AY, Kadhum, AAH & Mohamad, AB 2010, 'Corrosion inhibitor film forming in aerated and deaerated solutions', International Journal of Electrochemical Science, vol. 5, no. 12, pp. 1911-1921.
Musa, Ahmed Y. ; Kadhum, Abdul Amir H. ; Mohamad, Abu Bakar. / Corrosion inhibitor film forming in aerated and deaerated solutions. In: International Journal of Electrochemical Science. 2010 ; Vol. 5, No. 12. pp. 1911-1921.
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