Abstract
The strength and the operational properties of low-alloy thick-sheet steels is increased by heat treatment in the line of the mill with the use of the rolling or furnace heat. The present work concerns the special features of structure formation and the mechanical properties of rolled stock from sheet structural steel 09G2S with a strength level C345 (σy=325-345 MPa) in a hot-rolled and a normalized state after accelerated cooling from the normalizing furnace and after rolling behind the finishing stand. As a result of the rapid cooling in the line of the mill the sheet acquires properties corresponding to steels with a C390–C440 strength level (σy=390-440 MPa).
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V. I. Spivakov, V. A. Sakhno, É. A. Orlov et. al., “Effective processes of heat treatment of thick-sheet rolled stock under the conditions of a 3600 mill,”Stal, No. 7, 62–67 (1993).
M. A. Bernshtein,Hot Deformation Diagrams Structure and Properties of Steels [in Russian], Metallurgiya, Moscow (1989).
M. E. Smagorinskii, “Improving the strength of thin-sheet rolled stock,”Stal., No. 3, 74–77 (1990).
V. A. Trusov, “Thermomechanical treatment of shape steel,” in:Byul. Chern. Met. (BNTI), Issue 12(1160) [in Russian],, (1995). pp. 12–21.
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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 8, pp. 9–11, August, 1998.
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Spivakov, V.I., Uzlov, I.G., Moiseeva, L.A. et al. Special features of the formation of microstructure of heat-treated low-alloy steel. Met Sci Heat Treat 40, 313–315 (1998). https://doi.org/10.1007/BF02466217
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DOI: https://doi.org/10.1007/BF02466217