corrosion inhibition of api 5l carbon steel by nettle leaves hydroalcoholic extract in a 0.5 m h2so4 solution

نویسندگان

a. fattah-alhosseini

department of materials engineering, bu-ali sina university, hamedan 65178-38695, iran b. hamrahi

department of materials engineering, bu-ali sina university, hamedan 65178-38695, iran

چکیده

in this work, electrochemical methods such as tafel polarization and electrochemical impedance spectroscopy (eis) were used to study the inhibition efficiency of nettle leaves hydroalcoholic extract as a green corrosion inhibitor of api 5l carbon steel in 0.5 m h2so4 solution. the results showed that the inhibition efficiency was increased with increasing the concentration of the extract and the maximum inhibition efficiency in the concentration of 6 g/l was 96%. the negative sign 0 δgads absorption of inhibitor on the steel surface was spontaneous and the value 0 ads δg represented the physical absorption of the inhibitor which followed the langmuir isotherm.

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Corrosion Inhibition of API 5L Carbon Steel by Nettle Leaves Hydroalcoholic Extract in a 0.5 M H2SO4 Solution

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عنوان ژورنال:
international journal of iron and steel society of iran

جلد ۱۳، شماره ۱، صفحات ۴۵-۴۹

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