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Initial Oxidation Rate Law of Binary Alloys by Hopping Migration of Cations

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Abstract:

We propose a multi-element hopping model, which shows the flux equations of various cations under high electric field. The model is applied to the initial oxidation of binary alloys which produces a homogeneous single layer solid solution oxide film. The flux equations by this model for two kinds of cations were substituted to the oxidation growth rate definition equation. Finally, it is shown that the initial oxidation rate law of dilute binary alloys can be obtained as a type of inverse logarithmic rate law.

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High-Temperature Oxidation and Corrosion 2005 View Preview

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Periodical:

Materials Science Forum (Volumes 522-523)

Pages:

111-118

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.522-523.111

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Online since:

August 2006

Authors:

Ikuo Ishikawa, Hiroshi Nanjo

Keywords:

Binary Alloy, Diffusion, Hopping Model, Initial Oxidation, Inverse-Logarithmic Rate Law, Migration, Passivity

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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