An analysis of available data of the growth offerrous pearlite using moving boundary diffusivities rather than those for stationary grain boundaries is presented. Two ledge growth approaches are tested and compared with the classic Zener–Hillert approach. Both approaches based on a combined ledge growth and moving boundary interdiffusion mechanism are in good agreement with the experimental datafor binary Fe–C and substitutionally alloyed Fe–C eutectoids.
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