Influence of Heat Flux on Isothermal Oxidation of Zircaloy-4 in High Temperature Steam
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The oxidation of Zircaloy-4 in steam at 1, 173 to 1, 773K has been modeled by solving the oxygen diffusion equation numerically to predict the oxidation rate of the Zircaloy-4 at high temperature. A fully implicit finite difference method was employed to solve the diffusion equation for a one dimensional cylindrical geometry. The influence of the heat flux on the isothermal oxidation rate has been considered to show its effect on the oxide-metal interface temperature and the acceleration of the oxidation rate. The results obtained were found to be in good agreement with experimental data reported in the literature.
- Journal of Nuclear Science and Technology
Journal of Nuclear Science and Technology 32(4), 351-356, 1995-04-25
Atomic Energy Society of Japan