Fractal Analysis of Recrystallized Structure

Abstract

The concept of fractal dimension has been applied to the description of the morphologies of deformed and recrystallized structures of commercial pure iron. The fractal dimensions of the image surfaces were experimentally determined, based on the Box-counting theorem. The results obtained are as follows:
(1) The fractal dimension increased with the amount of plastic deformation and grain-size number.
(2) The fractal dimension of the deformed structures reached a peak near the approximate recrystallization temperature and decreased gradually with the grain growth.