Abstract
Results of a study of the dependence of the structure and properties of low-carbon microalloyed steel for controlled forging and rolling on the austenization temperature, the degree of deformation, and the cooling rate after the deformation are presented. It is established that the γ → α transformation in the studied steel during cooling in any mode of controlled rolling occurs in the pearlite range. As the austenization temperature is decreased and the degree of deformation increased in the process of controlled rolling, the grain size decreases and the dispersity of the pearlite increases. The mechanical properties of the studied steel are quite stable after various variants of controlled rolling.
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REFERENCES
A. Ya. Zaslavskii, "Microalloyed steels for controlled hot plastic deformation (a brief review)," Metalloved. Term. Obrab. Met., No. 8, 38–40 (2001).
R. Kaspar, L. Tozal-Martines, I. Richter, and Kete, "Potential properties of microalloyed steels for die forging," Chern. Met., No. 3, 52–60 (2001).
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Zaslavskii, A.Y., Reznitskii, I.B., Yashin, Y.D. et al. A Study of Low-Alloy Steel 40KhGF for Controlled Hot Plastic Deformation. Metal Science and Heat Treatment 45, 98–102 (2003). https://doi.org/10.1023/A:1024563420476
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DOI: https://doi.org/10.1023/A:1024563420476