Abstract
A cellular automaton model has been employed to investigate the transformation
from austenite to ferrite in low
carbon steels during continuous cooling. An important aspect of this
approach is the implementation of incorporating
local concentration changes into a nucleation or growth function,
which is utilized by the automaton in a probabilistic
fashion. The modeling gives a visual insight into the effect of cooling
conditions on this transformation. The final
nucleation number, the number of ferrite grains per austenite grain,
ferrite grain size and the kinetics of ferrite formation
are obtained as a function of the cooling rate or the undercooling
temperature.
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