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Rolling and Other Metal Forming Processes
ArticleName Hot plastic deformation of heat-resistant austenitic AISI 310S steel. Part 1. Simulation of flow stress and dynamic recrystallization
ArticleAuthor A. Yu. Churyumov, A. V. Pozdnyakov, T. A. Churyumova, V. V. Cheverikin

National University of Science and Technology “MISiS” (Moscow, Russia):

A. Yu. Churyumov, Cand. Eng., Associate Prof., Dept. of Nonferrous Metallurgy, e-mail:
A. V. Pozdnyakov, Cand. Eng., Associate Prof., Dept. of Nonferrous Metallurgy
V. V. Cheverikin, Cand. Eng., Leading Resarcher

A. A. Bochvar High-technology Scientific Research Institute for Inorganic Materials (Moscow, Russia):

T. A. Churyumova, Researcher


Model of the hot deformation behavior of high-temperature resistant AISI 310S steel was conducted using thermomechanical simulator Gleeble 3800 in the range of the temperatures of 900–1200 ºC, and in the range of the strain rates of 0,1–10 s–1, and at the strain up to 1. It was shown that the process of dynamic recrystallization, proceeding above a temperature of 1100 ºС, leads to a significant decrease in the average grain size to 15–25 microns. The kinetics models of dynamic recrystallization and growth of recrystallized grain were constructed. Verification of the constructed models by calculations using the finite element method showed their high accuracy and the possibility of application for predicting the microstructure in industrial conditions.

This work was financially supported by the Russian Science Foundation (project No. 18-79-10153).

keywords Hot deformation, modeling, microstructure, AISI 310 steel, dynamic recrystallization

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