Mukherjee, D. and Khan, A.A. and Kumar, M.R. and Mukherjee, S. and Alagappan, A.N. and Nagarajan, P. and Nesarajl, A.S. and Ghosh, S. and Muzhumathi, S. (2006) Metastable surface modification processes for corrosion and oxidation control. Surface Engineering, 22 (5). pp. 411-416. ISSN 0267-0844

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Abstract

This technical note discusses recent advances in the field of high energy surface alloying with particular reference to their non-stoichiometric solid state interaction and their corrosion resistance behaviour by electrochemical techniques. High energy treated surfaces undergo solid state interaction like diffusion, unconventional miscibility, solid solubility and nonstoichiometric compositions which impose a certain degree of metastability on the surface, which alters the electrode surfaces significantly. By introducing a high degree of surface metastability, it is possible to create scope for the physical and chemical properties of the electrodes. This transition of the interface from the metastable state to a stable state is normally accompanied by the formation of a stress free stable thin adherent and protective surface oxide layer. All these aspects are discussed in the present paper in the context of their corrosion resistance industrial usage, in particular to chloroalkali industrial applications. A generalised mechanism of protection of these high energy treated surfaces, is proposed based on surface metastability induced on the surface, as a result of the non-stoichiometry of solid state processing and its electrochemical interactions.

Item Type:	Article
Uncontrolled Keywords:	High energy surface modification; Surface coating; Metastability and interconnected porosity structure
Subjects:	Industrial Metal Finishing Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Apr 2012 15:37
Last Modified:	06 Apr 2012 15:37
URI:	http://cecri.csircentral.net/id/eprint/840

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