Sathiya Priya, A.R. and Muralidharan, S. and Velmurugan, S. and Venkatachari, G. (2008) Corrosion inhibitor for the chemical decontamination of primary coolant systems of nuclear power plants. Materials Chemistry and Physics, 110 (2-3). pp. 269-275. ISSN 0254-0584

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Abstract

Radiation field reduction in the primary heat transport (PHT) system of water-cooled reactors can be achieved by ‘dilute chemical decontamination (DCD)’ process. The corrosion behaviour of carbon steel has been studied in the absence and presence of different concentrations of cinnamaldehyde in 4.76mML−1 of citric acid for different immersion times (6 h and 24 h) at 30 ◦C using weight loss, potentiodynamic polarization and impedance measurements. Cinnamaldehyde has given an inhibition efficiency of about 90% at 15.15mML−1 and inhibition efficiency is decreased to 82% when duration of immersion increased from 6 h to 24 h. Electrochemical studies followthe same trend as those observed inweight loss measurements. The formation of the adsorbed inhibitor film on the carbon steel was further confirmed by FTIR studies.

Item Type:	Article
Uncontrolled Keywords:	Decontamination; Carbon steel; Citric acid; pH value; Cinnamaldehyde; Atomic absorption spectroscopy; Electrochemical impedance spectroscopy; Inhibition efficiency; Fourier transform infra-red spectroscopy
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	20 Jan 2012 13:40
Last Modified:	20 Jan 2012 13:40
URI:	http://cecri.csircentral.net/id/eprint/413

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