Metal Science and Heat Treatment

, Volume 53, Issue 5–6, pp 218–224 | Cite as

Change in the structure and properties of thick-sheet ferrite-bainite high-strength pipe steel under the influence of heat treatment

  • M. Yu. Matrosov
  • O. P. Talanov
  • I. V. Lyasotskii
  • A. A. Kichkina
Heat Treatment

The change in mechanical properties and structural state is studied for steel of strength class K65 after heating to different temperatures. The change in strength properties with heating in the temperature range for precipitation of fine particles of Nb and V carbides is compared with particle morphology. Recommendations are worked out on the basis of results obtained for improving the mechanical properties for high-strength steels with a ferrite-bainite structure.

Key words

high-strength pipe steels heat treatment ferrite-bainite structure fine particles of Nb and/or V carbides 


  1. 1.
    Yu. I. Matrosov, I. V. Ganoshenko, O. A. Bagmet, and T. Yu. Ivanova, “Possibilities of improving the yield strength of highstrength pipe steels Kh70 and Kh80,” Stal’, No. 2, 74 – 78 (2005).Google Scholar
  2. 2.
    Yu. I. Matrosov, A. A. Litvinenko, and S. A. Golovanenko, Steel for Main Gas Pipelines [in Russian], Metallurgiya, Moscow (1989).Google Scholar
  3. 3.
    F. S. Le Pera, “Improved etching technique to emphasize martensite and bainite in high-strength dual-phase steel,” J. Metallography, No. 32, 38 – 39 (1980).Google Scholar
  4. 4.
    V. M. Schastlivtsev, D. A. Marzaev, and I. L. Yakovleva, Structure of Heat Treated Steel [in Russian], Metallurgiya, Moscow (1994).Google Scholar
  5. 5.
    K. Andrew, “Empirical formulae for the calculation of some transformation temperatures,” J. Iron Steel Inst., 203, 721 – 727, July (1965).Google Scholar
  6. 6.
    A. J. DeArdo, “Fundamental metallurgy of niobium in steel,” in: Niobium Science and Technology: Proc. of the International Symposium Niobium 2001 held in Orlando, Florida, USA, December 2 – 5 (2001), pp. 427 – 500.Google Scholar
  7. 7.
    L. M. Utevskii, Steel Temper Brittleness [in Russian], Metallurgiya, Moscow (1961). Google Scholar
  8. 8.
    L. M. Utevskii, E. É. Glikman, and G. S. Kark, Steel and Iron Alloy Reverse Temper Brittleness [in Russian], Metallurgiya, Moscow (1987).Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2011

Authors and Affiliations

  • M. Yu. Matrosov
    • 1
  • O. P. Talanov
    • 1
  • I. V. Lyasotskii
    • 1
  • A. A. Kichkina
    • 1
  1. 1.FGUP I. P. Bardin TsNIIchermetMoscowRussia

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