Venkatachari, G. and Marikkannu, C. and Muralidharan, S. and Balakrishnan, K. (1996) Voltage noise measurements during staining of 6061 aluminium alloy exposed to humid atmospheres. Bulletin of Electrochemistry, 12 (01). pp. 77-79. ISSN 0256-1654

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Abstract

Electrochemical noise generation during staining of 6061 aluminium alloy exposed to 60 to 100% RH at 323 K has been measured. The noise power values (V2) were obtained from the auto correlation of voltage time data. On exposure of aluminium alloy to 80 to 100% RH, considerable staining have been observed. During staining the noise power values were found to increase from 10-6 (V2) to 10-4 (V2) and a considerable weight gain was also observed. However, on exposure of aluminium alloy to 60% RH no staining was observed and the noise power value remained around 10-8 (V2). After passivation treatment of aluminium alloy in 50% HNO3 or with chromate treatment the noise power values remained at a low level of 10-8 (V2) till the protective power of the coating remained unaffected

Item Type:	Article
Uncontrolled Keywords:	Noise measurement; Staining aluminium
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	04 Dec 2012 13:36
Last Modified:	04 Dec 2012 13:36
URI:	http://cecri.csircentral.net/id/eprint/2960

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