A systematic experimental study has been conducted on ferrite recrystallization and
intercritical austenite formation for two low-carbon steels with chemical compositions
typically used for dual-phase and transformation-induced plasticity (TRIP) steels. Different
initial heating rates, holding temperatures, and times were applied to the materials to
examine the ferrite recrystallization and austenite formation kinetics. An Avrami model was
developed to describe the isothermal ferrite recrystallization behavior and was applied …

Purpose: of this paper is the effect of the soft annealing of initial microstructure of the 6Mn16
steel on the kinetics of the austenite formation during next intercritical annealing.
Design/methodology/approach: Analytical TEM point analysis with EDAX system attached to
Philips CM20 was used to evaluate the concentration of Mn, Ni and Cr in the microstructure
constituents of the multiphase steel and mainly Bainite-Martensite islands. Findings: The
increase in soft annealing time from 1-60 hours at 625 C increases Mn partitioning between …