Abstract
Phase and structural transformations upon heating in the intercritical temperature range have been studied in initially quenched 12Kh2G2NMFT and 12KhN3A low-carbon steels. The dependence of the intercritical interval (ICI) width on the heating rate of initially quenched steels has been demonstrated. The structure and properties of the steels after high-rate austenitizing and isothermal holding in the ICI have been studied. It has been shown that in both steels the formation of austenite occurs by the martensite mechanism, and the further development of nuclei is mainly determined by the diffusion paths of carbon.
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References
V. D. Sadovskii, Structural Heredity in Steel (Metallurgiya, Moscow, 1973) [in Russian].
V. M. Schastlivtsev and N. V. Koptseva, “Electron-Microscopic Studies of Austenite Formation upon Heating of Structural Steel,” Fiz. Met. Metalloved. 12, 837–847 (1976).
L. Ts. Zayats, D. O. Panov, and M. G. Zakirova, “Structural Heredity and Recrystallization upon “Quick” Austenitization of System-Alloyed Steels,” Metalloved. Term. Obrab. Met., No. 10, 18–23 (2008).
S. S. D’yachenko, Austenite Formation in Iron-Carbon Alloys (Metallurgiya, Moscow, 1982) [in Russian].
N. L. Pecherkina, V. V. Sagaradze, and T. P. Vasechkina, “About Inheritance of Dislocation Structure upon BCC-FCC Transformation during Heating,” Fiz. Met. Metalloved. 66, 750–758 (1988).
S. S. Gorelik, S. V. Dobatkin, and L. M. Kaputkina, Recrystallization of Metals and Alloys (MISIS, Moscow, 2005) [in Russian].
N. N. Lipchin, “Redistribution of Alloying Elements upon Recrystallization of Steel during Heating,” Metalloved. Term. Obrab. Met., No. 11, 8–11 (1990).
A. P. Kamenskikh, L. Ts. Zayats, L. M. Kleiner, and Yu. N. Simonov, “Peculiarities of the Formation of the Structure and Properties of Low-Carbon Martensite 12Kh2G2NMFT Steel,” Metalloved. Term. Obrab. Met., No. 3, 10–12 (2003).
Yu. N. Simonov, “Conditions of the Formation of Lath Martensite from Low-Carbon Austenite upon Slow Cooling,” Phys. Met. Metallogr. 97, 502–506 (2004).
L. E. Popova and A. A. Popov, Diagrams of Austenite Transformation in Steels and β-Solution in Titanium Alloys: A Handbook of Heat-Treater, 3rd Ed. (Metallurgiya, Moscow, 1991) [in Russian].
M. A. Krishtal, Mechanism of Diffusion in Iron Alloys (Metallurgiya, Moscow, 1972) [in Russian].
A. Yu. Bratashevskii and S. S. D’yachenko, “Effect of Dislocation Structure of Steel 20 on the Position of the Critical Point Ac1,” in Problems of Physical Metallurgy and Heat Treatment (Interinst. Collection Sci. Papers, No. 196, Perm. Univ., Perm, 1977).
A. A. Popov, Phase Transformations in Metallic Alloys (Metalurgizdat, Moscow, 1963) [in Russian].
L. M. Bernshtein, L. M. Kaputkina, and S. D. Prokoshkin, Tempering of Steels (MISIS, Moscow, 1997) [in Russian].
V. I. Zel’dovich, “Three Mechanisms of Austenite Formation and Structural Inheritance in Iron Alloys,” in Collection of Papers “Development of Acad. V. D. Sadovskii Ideas (Ekaterinburg, 2008) [in Russian].
S. B. Bokshtein, Diffusion in Metals (Metallurgiya, Moscow, 1978) [in Russian].
T. I. Chashchukhina, M. D. Degtyarev, L. M. Voronova, L. S. Davydova, and V. P. Pilyugin, “Effect of Structural Imperfections on Austenite Formation in Structural Steel Heated in the Critical Range of Temperature,” Phys. Met. Metallogr. 87, 56–62 (1999).
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Original Russian Text © L.Ts. Zayats, D.O. Panov, Yu.N. Simonov, A.N. Balakhnin, A.I. Smirnov, I.L. Yakovleva, 2011, published in Fizika Metallov i Metallovedenie, 2011, Vol. 112, No. 5, pp. 505–513.
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Zayats, L.T., Panov, D.O., Simonov, Y.N. et al. Formation of austenite in initially quenched low-carbon steels of different alloying systems in the intercritical temperature interval. Phys. Metals Metallogr. 112, 480–487 (2011). https://doi.org/10.1134/S0031918X11050310
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DOI: https://doi.org/10.1134/S0031918X11050310