Ea. Garcia et G. Beranger, Diffusion model for the oxidation of Zircaloy-4 at 400 degrees C in steam.The influence of metallurgical structure (precipitates and grain size), J NUCL MAT, 273(2), 1999, pp. 221-227
A model for simulating the oxidation of Zircaloy-4 (Zry-4) in steam at 400
degrees C with different precipitate and grain sizes is presented. The mode
l combines diffusion with interconnecting porosity, defines an interface wi
th discrete propagation in time and is able to reproduce the experimental k
inetics. It has been possible in this way to establish a correlation betwee
n the parameters responsible for the oxide behaviour (protective or not) an
d the metallurgical characteristics of the metallic substrate. (C) 1999 Pub
lished by Elsevier Science B.V. All rights reserved.