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Surface Engineering and Applied Electrochemistry
Erschienen in: Surface Engineering and Applied Electrochemistry 3/2019

01.05.2019

Eco-Friendly Plant Extract of Medicago sativa (Alfalfa) as Corrosion Inhibitor for Carbon Steel in Marine Environment

verfasst von: A. S. Fouda, A. Emam, R. Refat, M. M. Nageeb

Erschienen in: Surface Engineering and Applied Electrochemistry | Ausgabe 3/2019

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Abstract

The inhibiting effect of an Alfalfa extract in a corrosive medium (3.5% NaCl + 16 ppm Na2S) on the corrosion of carbon steel was studied by the mass loss measurements, potentiodynamic polarization, and electrochemical impedance spectroscopy. The results showed that the inhibition efficiency, increases with an increase in the extract dose but decreases at higher temperatures. The obtained results indicated that the investigated extract is physically adsorbed on the carbon steel surface and follows the Temkin adsorption isotherm. The polarization data revealed that this extract acts as mixed type inhibitor. The surface morphology was tested using atomic force microscope. The results obtained from different techniques are in good agreement.
Vorheriger Artikel Some Problems in Simulation of the Thermodynamic Properties of Droplets
Nächster Artikel Effects of PEG, PVP and SDS on the Properties of Chromium Coatings Prepared from Trivalent Chromium Chloride Baths Using Experimental Design and Multi-Response Optimisation

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Metadaten
Titel
Eco-Friendly Plant Extract of Medicago sativa (Alfalfa) as Corrosion Inhibitor for Carbon Steel in Marine Environment
verfasst von
A. S. Fouda
A. Emam
R. Refat
M. M. Nageeb
Publikationsdatum
01.05.2019
Verlag
Pleiades Publishing
Erschienen in
Surface Engineering and Applied Electrochemistry / Ausgabe 3/2019
Print ISSN: 1068-3755
Elektronische ISSN: 1934-8002
DOI
https://doi.org/10.3103/S1068375519030074

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