Abstract
A method is described, developed in CENIM-CSIC, for studying the kinetics of strain induced precipitation in micro-alloyed steels. Using torsion tests, the statically recrystallized fraction has been determined for three Nb, V and Ti micro-alloyed steels at different temperatures and strains. When precipitation starts, the recrystallized fraction deviates from Avrami’s equation, making it possible to identify the moment at which precipitation starts (Ps) and finishes (Pf). In this way precipitation–time–temperature(PTT) curves can be drawn, showing the precipitation kinetics in graph form.
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