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Metal Science and Heat Treatment

, Volume 59, Issue 7–8, pp 399–406 | Cite as

Effect of Microalloying of Roll Steel 70Kh3G2VTB on the Kinetics of Phase Transformations and Fine Structure Under Crystallization and Heat Hardening

  • S. E. KrylovaEmail author
  • A. P. Fot
  • V. I. Gryzunov
  • N. V. Firsova
TRANSFORMATIONS

Decomposition of supercooled austenite in steel 70Kh3G2VTB under continuous cooling is investigated. The thermokinetic diagram of decomposition of austenite in the pilot steel is plotted. The temperature-time ranges of the structural transformations are obtained. The effect of the parameters of austenitizing on the processes of dissolution of the carbide phase under heating is described. The fine structure of the pilot steel is studied in different stages of heat hardening.

Key words

sparingly alloyed steel decomposition of austenite thermokinetic diagram carbide hardening 

References

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    S. E. Krylova, V. A. Moskalenko, and V. I. Gryzunov, “Development of a steel resistant to impact and abrasive wear,” Stal’, No. 3, 85 – 89 (2005).Google Scholar
  2. 2.
    S. E. Krylova, N. Yu. Tryakina, E. Yu. Priymak, et al., “Rationalization of heat treatment parameters of steel 70Kh3G2VTB on the basis of a study of the phase composition,” Metalloved. Term. Obrab. Met., No. 1, 19 – 23 (2013).Google Scholar
  3. 3.
    S. E. Krylova, I. L. Yakovleva, N. A. Tereshchenko, et al., “Effect of the kinetics of decomposition of supercooled austenite on formation of structure in a sparingly alloyed tool steel,” Fiz. Met. Metalloved., 114(10), 92 – 935 (2013).Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • S. E. Krylova
    • 1
    Email author
  • A. P. Fot
    • 1
  • V. I. Gryzunov
    • 2
  • N. V. Firsova
    • 2
  1. 1.Orenburg State UniversityOrenburgRussia
  2. 2.Orsk Liberal-Technological InstituteBranch of the Orenburg State UniversityOrskRussia

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