Lipetsk State Technical University (Lipetsk, Russia):

V. V. Shkatov, Dr. Eng., Prof., e-mail: shkatov@mail.ru
I. P. Mazur, Dr. Eng., Prof., Head of the Chair of Metal Forming, e-mail: mazup_ip@mail.ru
T. S. Chetverikova, Post-Graduate Student, e-mail: izuchksi@yandex.ru

Czestochowa Technological University (Czestochowa, Poland):
M. Knapinski, Dr. Eng., Prof., e-mail: knap@wip.pcz.pl

During hot plastic deformation of structural steels, one of the promising ways to obtain high values of strength and plastic properties of finished metal products is regulation of the recrystallization processes of a deformed metal on the base of mathematical models. This article presents a mathematical model for predicting dynamic recrystallization during hot deformation of carbon and low-alloyed steels, which is based on the method of recalculation of the static recrystallization kinetics to the conditions of continuous increase in the degree of deformation during metal deformation. The results of the recrystallization kinetics calculation were used to predict the resistance to deformation of the steel. The model’s adequacy was tested by comparing the results of the calculation of the deformation resistance of low-alloyed steel with experimental data.
The study was made within execution of State assignment of RF Ministry of Education and Science, the project № 11.1446.2017/PCh.

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