Modelling of the Dynamic Processes of Structure Formation by Macroscopic Parameters of Plastic Deformation


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In this paper, the phenomenological approach which connects the recrystallization parameters with thermomechanical characteristics of deformation is implemented to simulation of structural transformations. Two cases were considered, when the growth rate of recrystallized volumes is damping fast, and when a weak growth of recrystallized grains is observed. A pattern of structural states was obtained among the models with fast decrease in growth rate of recrystallized grain and weak grain growth. The abatement of the sensibility to the intensity of grain growth with increasing of strain rate was established. The function of recrystallized volume has oscillating behaviour depending on time and coefficient of recrystallization intensity. These results were confirmed by experimental researches of rheological behaviour of steels at low strain rates and high temperatures.



Materials Science Forum (Volumes 558-559)

Edited by:

S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara




L. Ryabicheva and D. Usatyuk, "Modelling of the Dynamic Processes of Structure Formation by Macroscopic Parameters of Plastic Deformation", Materials Science Forum, Vols. 558-559, pp. 563-567, 2007

Online since:

October 2007




[1] B. Kowalcki, C.M. Sellars, M. Pietrzyk: Identification of rheological parameters on the basis of plane strain compression tests on specimens of various initial dimensions, Computational materials science, 35 (2006), pp.92-97.


[2] I.G. Gunn: Mathematical modelling of structural transformations at hot deformation of metals, Metals, Vol 5 (1989), pp.82-85.

[3] A.A. Baranov, V.P. Gorbatenko, A.L. Geller: The ways of combination of deformationalthermal treatment of steel, Metals and Casting of Ukraine, Vol. 4 (1995), pp.8-13.

[4] S. Sakai, T. Sakai, K. Takeishi: Effect of strain rate and temperature on the hot-worked structure of a 0. 1%-carbon steel, Tetsu-to-Hagane, Vol. 62 (1976), p.856.