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المؤلفون

The effect of linseed oil (LO) on the corrosion of carbon steel in 1 M HCl solution was

investigated using potentiodynamic polarization, electrochemical impedance

spectroscopy (EIS) technique and weight loss measurements. The inhibiting action

increases with the concentration of the tested inhibitor. The highest efficiency (98.2%)

is obtained at 3g/L of LO. The influence of temperature on the corrosion behavior of

carbon steel in 1 M HCl, with the addition of LO was also studied. The obtained data

from EIS measurements were analyzed to model the corrosion inhibition process

through an appropriate equivalent circuit model; a constant phase element (CPE) has

been used. Polarization measurements show also that LO acts as a good mixed

inhibitor. The inhibition process is attributed to the formation of an adsorbed film of

the inhibitor on the metal surface which protects the metal against corrosion. LO is

adsorbed on the steel surface according to a Langmuir isotherm adsorption model. The

results obtained showed that the linseed oil could serve as an effective green inhibitor

of the corrosion of carbon steel in hydrochloric acid medium.

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