Beschreibung:
<jats:p>The model of the γ→α transformation calculated with the CATRAN program is
described. The expected effect of former austenite grain size on the transformation kinetics as well
as the final microstructure is analyzed and compared with experimental data. The effect of austenite
grain size distribution spread on the transformation kinetics is also considered and must be included
as the additional input parameter in the computer model of austenite decomposition. In particular,
probable variations of grain size non-uniformity should be taken into account when comparing
transformation kinetics observed in the dilatometer experiment and under industrial conditions.</jats:p>