Abstract

This paper describes a model for the nucleation and growth of gas bubbles in irradiated metals. This model is based on the moment equations described by Clement and Wood, and can be used to calculate the number density of the bubbles and the mean and standard deviation of the size distribution of the bubbles. Bubble coalescence is also included in the model, and it is found that for many irradiation conditions, coalescence can significantly reduce the number density of the bubbles. The results of numerical calculations are compared with experimental results on the nucleation of gas bubbles in irradiated stainless steels, and good agreement is found.

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