Dr. josephraj Xavier » Публикация
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Опубликовано
2011-02-01
Опубликовано на SciPeople2011-08-02 15:29:26
ЖурналInternational Journal of ELECTROCHEMICAL SCIENCE
Corrosion Inhibition Effect of Substituted Thiadiazoles on Brass
Аннотация
The corrosion inhibition of thiadiazole derivatives for brass in natural seawater has been evaluated by
potentiodynamic polarisation and electrochemical impedance spectroscopic techniques. It was found
that the inhibition efficiency of the thiadiazole derivatives, namely, 2-amino-5-ethyl-1,3,4-
thiadiazole(AETD), 2-amino-5-ethylthio-1,3,4-thiadiazole(AETTD) and 2-amino-5-tert-butyl-1,3,4-
thiadiazole (ATBTD) increases with increase in concentration. The adsorption of thiadiazole
derivatives on brass surface exposed to inhibitor-containing solutions was confirmed using SEM/EDX
spectra and FT-IR spectra. Adsorption of these inhibitors on brass surface followed Langmuir
adsorption isotherm. ICP-AES analysis confirms that dezincification was minimized to a greater extent
in the presence of these inhibitors.
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