Influence mutual of the deformation and chemical composition on induced precipitation in microalloyed steels
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1061Keywords:
Deformation, Microalloyed steel, RPTT diagram, Precipitation kinetics, Incubation timeAbstract
By means of torsion tests and applying the "back extrapolation" method, the static recrystallization kinetics in microalloyed steels with vanadium (V), niobium (Nb) and titanium (Ti) has been determined and, recrystallization-precipitation-time-temperature (RPTT) diagrams have been plotted also graphically, which show the Recrystallization- Precipitation interaction. These diagrams show that the effect of the deformation on the precipitation kinetics depends of the microalloy content. In this sense, a new expression is proposed to relate the influence of the deformation and the chemical composition on the minimum incubation of the precipitation kinetics.
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