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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/1263

Title: Effect of carbon on corrosion behaviour of Fe3Al intermetallics in 0.5 N sulphuric acid
Authors: RAO, VSHANKAR
BALIGIDAD, RG
RAJA, VS
Keywords: intermetallics
potentiostatic
passivity
hydrogen
Issue Date: 2002
Publisher: Elsevier
Citation: Corrosion Science 44(3), 521-533
Abstract: Electrochemical corrosion behaviour of iron aluminides, produced by electroslag remelting technique, having the compositions (1) Fe–15.6Al–0.05C, (2) Fe–15.6Al–0.14C, (3) Fe–15.6Al–0.5C and (4) Fe–15.6Al–1C were investigated in 0.5 N H2SO4 media. Corrosion rates of these alloys were found to increase with carbon content. This was attributed to the preferential attack of the carbide phases. These alloys exhibited typical active–passive–transpassive behaviour. In addition, they displayed a secondary anodic current maxima during polarization. The resistance of aluminides to breakdown of passivity was assessed by varying addition of chloride ions in the same media.
URI: 10.1016/S0010-938X(01)00084-1
http://hdl.handle.net/10054/1263
http://dspace.library.iitb.ac.in/xmlui/handle/10054/1263
ISSN: 0010-938X
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