Subramanian, G. and Chandrasekaran, P. and Eashwar, M. and Guruviah, S. (1990) Corrosion potentials of metals and alloys as influenced by microbiological slime in seawater. Bulletin of Electrochemistry, 06 (06). pp. 582-583. ISSN 0256-1654

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Abstract

The influence of marine microbiological film formation on the free corrosion potentials of some alloys has been investigated. 304 and 316 stainless steels, and 3004 aluminium show considerable ennoblement of potentials in natural seawater compared to sterile seawater and 3% sodium chloride solution. Mild steel, copper and titanium have been found to be less susceptible to this effect. Galvanic currents measured between different couples in natural seawater are quite different from those obtained in the microbe-free situations. Results of the experiments, particularly of aluminium-mild steel couple, provide reasons for the consideration of microbiological component of seawater in predicting galvanic corrosion behavior of certain alloys. The validity of conventional 3% NaCl tests is critically examined and results are discussed

Item Type:	Article
Uncontrolled Keywords:	Corrosion potentials; Metals and alloys; Influence of microbiological slime in seawater
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	23 May 2012 09:01
Last Modified:	23 May 2012 09:01
URI:	http://cecri.csircentral.net/id/eprint/2730

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