Abstract
In the last stage of decomposition of a supersaturated solid solution, an important role is played by diffusion of “grains of a new phase” through the solution (coalescence). In the present paper, a study is made of the kinetics of the process under gas swelling conditions, where the grains of the new phase are pores, saturated with an inert gas. Here, a study is made of two cases: 1) the total amount of gas in the system is constant (annealing conditions), and 2) the total amount of gas in the system increases with time. An asymptotic solution is obtained for the problem. The asymptotic behavior of the number of pores, and of their mean dimensions, is found, as well as the asymptotic increase in volume.
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