ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Corrosion behaviour of 8090-T851 Al-Li alloy and aluminium in pH 2 solution containing cupric ions

Murthy, KSN and Subramanian, S and Dwarakadasa, ES (1997) Corrosion behaviour of 8090-T851 Al-Li alloy and aluminium in pH 2 solution containing cupric ions. In: British Corrosion Journal, 32 (1). pp. 63-67.

Full text not available from this repository. (Request a copy)

Abstract

Weight loss studies and scanning electron microscopy revealed that cupric ions act as accelerators of the corrosion of aluminium and an Al-Li alloy in chloride solution with a pH of 2. The corrosion rates of the two materials increased with cupric ion concentration in the solution and drastically so when this exceeded a critical value. The nature of the corrosion was significantly influenced by the presence of cupric ions, changing from a general to a mixed mode of corrosion for aluminium, while the alloy exhibited localised attack as the predominant mode of corrosion in the presence of cupric ions. The severity of localised attack increased with increasing cupric ion concentration in both cases. Possible mechanisms by which the cupric ions accelerate the corrosion reaction are highlighted.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Institute of Materials, Minerals and Mining .
Department/Centre: Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited: 29 May 2007
Last Modified: 27 Aug 2008 12:40
URI: http://eprints.iisc.ernet.in/id/eprint/10083

Actions (login required)

View Item View Item