The effects of natural Artemisia oil on the corrosion of steel in molar hydrochloric acid were studied by the measurements of weight loss, electrochemical and EIS polarisation. The results obtained revealed that Artemisia oil reduced the rate of corrosion. The corrosion inhibition efficiency increased with the increase of inhibitor concentration. Potentiodynamic polarisation studies clearly revealed that the presence of the natural Artemisia oil did not alter the mechanism of the hydrogen evolution reaction and acted essentially as a cathodic inhibitor. Good agreement between gravimetric and electrochemical polarisation results was noted. The effect of temperature on the corrosion behaviour of steel in 1M HCl, with and without the oil in the temperature range of 308‐353 K, indicated that inhibition efficiency increased with temperature. The adsorption of Artemisia oil on the steel is followed by Frumkin adsorption isotherm.
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1 October 2004
Conceptual Paper|
October 01 2004
A study of anti‐corrosive effects of Artemisia oil on steel
A. Bouyanzer;
A. Bouyanzer
Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco
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B. Hammouti
B. Hammouti
Laboratoire de Chimie des Eaux et Corrosion, Faculté des Sciences, Oujda, Morocco
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Publisher: Emerald Publishing
Online ISSN: 1758-6941
Print ISSN: 0369-9420
© Emerald Group Publishing Limited
2004
Pigment & Resin Technology (2004) 33 (5): 287–292.
Citation
Bouyanzer A, Hammouti B (2004), "A study of anti‐corrosive effects of Artemisia oil on steel". Pigment & Resin Technology, Vol. 33 No. 5 pp. 287–292, doi: https://doi.org/10.1108/03699420410560489
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