Muralidharan, S. and Manoharan, SP. and Venkatachari, G. and Balakrishnan, K. (1990) Studies on pitting corrosion by noise measurements. Bulletin of Electrochemistry, 06 (01). 04-05. ISSN 0256-1654

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Abstract

The noise power measurements [V̄2] have been made for H20 aluminium in 10 to 50 ppm NaCl solutions and for steel in 500 ppm potassium chromate solution containing 0 to 1000 ppm NaCl by autocorrelation method. For aluminium, the noise power is below 10-8 V̄2 upto 20 ppm NaCl, while it is in the range of 10-6 V̄2 for NaCl concentrations greater than 20 ppm. For steel, the noise power in 500 ppm K2CrO4 is of the order of 10-8 V̄2 and it is found to be increased to 10-6 V̄2 in the presence of 500 ppm and 1000 ppm NaCl. These studies have shown that the noise power measurements can be used for identification of initiation of pitting corrosion of metals

Item Type:	Article
Uncontrolled Keywords:	Aluminium in chloride; Auto correlation; Noise power; Pitting
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	21 May 2012 12:04
Last Modified:	19 Oct 2012 10:53
URI:	http://cecri.csircentral.net/id/eprint/2593

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