STATIC RECRYSTALLIZATION MODELING OF HOT DEFORMED STEELS CONTAINING SEVERAL ALLOYING ELEMENTS

Using torsion tests a model has been constructed to predict the recrys tallized fraction of deformed austenite in low alloy and microalloyed steels. The model quantifies the influence of the most common elements (C, Si, Mn, Mo) in low alloy steels and the typical elements (Ti, V, Nb) in microalloyed steels in the recrystallized fraction, when they a re in solution. Static recrystallization kinetics follow Avrami's law and expressions for the parameter t(0.5) and for the exponent n are no t given. The values predicted by the model are compared with the exper imental values, good concordance being obtained between both.