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Computer modelling of primary recrystallization.

Walasek T.

Inżynieria Materiałowa

1998

R. XIX, nr 4

1272-1275

In the paper a Monte Carlo computer simulation technique has been applied to the problem of primary recrystallization. A continuum system of material has been modelled employing a discrete 2D lattice of 40 000 elements. The nucleation rate has been chosen so as to be time dependent. Both stored energy and grain boundary energy have been included in the present model. A deformed microstructure has been used as preliminary one in the present simulation. The modelling results have been discussed in terms of experimental observations. The microstructures produced on SMITWELD thermal cycle simulator and these produced by computer simulation have been examined on MAGICSCAN image analyser. The results show clear similarity as far as the recrystallized volume fractions, grain sizes and their shapes are concerned. The characteristic sigmoidal dependence of the recrystallized volume fraction in metals is properly reproduced.