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Simulation of Hot Continuous Rolling of a Plain Carbon Steel Using the MAXStrain II® Multi-Axis Deformation System

Schindler Ivo, Kawulok Petr, Konečná Kateřina, Sauer Michal, Navrátil Horymír, Opěla Petr, Kawulok Rostislav, Rusz Stanislav

Archives of Metallurgy and Materials

2023

Vol. 68, iss. 2

741--747

A simple methodology was used for calculating the equivalent strain values during forming the sample alternately in two mutually perpendicular directions. This method reflects an unexpected material flow out of the nominal deformation zone when forming on the MAXStrain II device. Thus it was possible to perform two temperature variants of the simulation of continuous rolling and cooling of a long product made of steel containing 0.17% C and 0.80% Mn. Increasing the finishing temperature from 900°C to 950°C and decreasing the cooling rate from 10°C/s to 5°C/s led to a decrease in the content of acicular ferrite and bainite and an increase in the mean grain size of proeutectoid ferrite from about 8 µm to 14 µm. The result was a change in the hardness of the material by 15%.