Initial Oxidation Rate Law of Binary Alloys by Hopping Migration of Cations |
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| Journal | Materials Science Forum (Volumes 522 - 523) |
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| Volume | High-Temperature Oxidation and Corrosion 2005 |
| Edited by | Shigeji Taniguchi, Toshio Maruyama, Masayuki Yoshiba, Nobuo Otsuka and Yuuzou Kawahara |
| Pages | 111-118 |
| DOI | 10.4028/www.scientific.net/MSF.522-523.111 |
| Citation | Ikuo Ishikawa et al., 2006, Materials Science Forum, 522-523, 111 |
| Online since | August, 2006 |
| Authors | Ikuo Ishikawa, Hiroshi Nanjo |
| Keywords | Binary Alloy, Diffusion, Hopping Model, Initial Oxidation, Inverse-Logarithmic Rate Law, Migration, Passivity |
| 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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