Influence of Temperature–Time Conditions of High-Speed Normalization of Low-Carbon Steels on the Formation of Their Grain Structure. Pt. I. Peculiarities of Austenite-Formation Processes

 R. V. Teliovych , Yu. A. Garasym, N. O. Bondarevska

G. V. Kurdyumov Institute for Metal Physics, N.A.S. of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 10.04.2025; final version - 15.04.2025. Download: PDF

The work is concerned with the study of the features of formation of austenite and its grain structure during continuous heating with increased rates of hot-rolled low-carbon 09G2 and 10G2FB Fe−Mn−C steels. The influence of heating acceleration on the change in the temperature of the parameters of α→γ-transformation and the features of the process of austenite formation, as well as on the change in the average diameter of its grains, are established. As shown, due to the suppression of intensive grain-growth processes, an increase in the heating rate allows the formation of a fine-grained austenite structure in steels, which is characterized by high uniformity in grain size.

Key words: austenite, normalization, structure, steel, alloying.

URL: https://mfint.imp.kiev.ua/en/abstract/v48/i01/0001.html

DOI: https://doi.org/10.15407/mfint.48.01.0001

PACS: 61.66.Dk, 61.72.Ff, 61.72.Mm, 81.05.Bx, 81.30.Kf, 81.40.Ef, 81.40.Np

Citation:  R. V. Teliovych , Yu. A. Garasym, and N. O. Bondarevska, Influence of Temperature–Time Conditions of High-Speed Normalization of Low-Carbon Steels on the Formation of Their Grain Structure. Pt. I. Peculiarities of Austenite-Formation Processes, Metallofiz. Noveishie Tekhnol., 48, No. 1: 1–17 (2026) (in Ukrainian)


REFERENCES
  1. V. N. Gridnev, Yu. Ya. Meshkov, S. P. Oshkadyorov, and V. I. Trefilov, Fizicheskie Osnovy Ehlektrotermicheskogo Uprochneniya Stali [Physical Principles of Electrothermal Hardening of Steel] (Kiev: Naukova Dumka: 1973) (in Russian).
  2. V. N. Gridnev, Yu. Ya. Meshkov, S. P. Oshkadyorov, and N. F. Chernenko, Tekhnologicheskie Osnovy Elektrotermicheskoy Obrabotki Stali [Technological Principles of Electrothermal Treatment of Steel] (Kiev: Naukova Dumka: 1977) (in Russian).
  3. E. B. Pickering, Sci. Technol. A. Comprehensive Treatment, 7: 337 (1992).
  4. M. Korchynski, Mater. Eng., October: 45 (1986).
  5. G. R. Speich and A. Szirmae, Trans. АIME, 245: 1063 (1969).
  6. R. R. Judd and W. Paxton, Trans. АIME, 242: 206 (1968).
  7. C. I. Garcia and A. J. Deardo, Metall. Trans., 12A: 521 (1981).
  8. N.C. Law and D.V. Edmons, Metall. Trans, 11A: 33 (1980).
  9. J. Huang, W. J. Poole, and M. Militzer, Metall. Mater. Trans. A, 35: 3363 (2004).
  10. S. Estay, L. Chengji, and G. R. Purdy, Canadian Metallurgical Quarterby, 23, No.1: 121 (1984).
  11. G. R. Speich and A. Szirmae, Trans. АIME, 245: 1063 (1969).
  12. V. I. Savran, Y. Yan Leeuwen, D. N. Hanlon, C. Kwarkernark, W. G. Sloofand, and J. Sietsma, Metall. Mater. Trans. A, 38A, May: 964 (2007).
  13. V. I. Savran, S. E. Offerman, and J. Sietsma, Metall. Mater. Trans. A, 41A, March: 583 (2010).
  14. E. Schmidt, D. Soltesz, S. Roberts, A. Bednar, and S. Sridhar, ISIJ International, 46, No. 10: 1500 (2006).
  15. R.G. Ward, J. Iron and Steel Inst., No. 9: 930 (1965).
  16. G. Kraus, Metall. Trans. B, 34, Iss. 6: 781 (2003).
  17. O. O. Miller, Trans. АSM, 43: 260 (1951).
  18. S. S. Diyachenko, Obrazovanie Austenita v Zhelezouglerodistykh Splavakh [Formation of Austenite in Iron–Carbon Alloys] (Moskva: Metallurgiya: 1982) (in Russian).
  19. M. Svoboda, L. Karmasin, and A. Kroupa, Mater. Sci. Eng., A114: 121 (1989).
  20. K. Z. Shepelyakovskiy and G. A. Ostrovskaya, Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7: 16 (1967) (in Russian).
  21. V. P. Morozov and V. A. Volokhov, Metally, No. 3: 70 (1991) (in Russian).
  22. L. I. Cuddy and J. C. Reley, Metall. Trans. A, 14A, October: 1899 (1983).
  23. K. Banerjee, M. Militzer, M. Perez, and Y. Wang, Metall. Mater. Trans. A, 41, 10 August: 3161 (2010).
  24. C. Zener and C. S. Smith, Trans. AIME, 175: 47 (1948).
  25. T. Gladman, Proc. Roy. Soc., 294A: 298 (1966).
  26. P. Hellman and M. Hillerd, Scand. J. of Met., 4: 211 (1975).