Metallurgical and Materials Transactions A

, Volume 42, Issue 5, pp 1349–1361 | Cite as

Microstructure and Mechanical Properties in Hot-Rolled Extra High-Yield-Strength Steel Plates for Offshore Structure and Shipbuilding

  • Dongsheng LiuEmail author
  • Qingliang Li
  • Toshihiko Emi


Key parameters for a thermomechanically controlled processing and accelerated cooling process (TMCP-AcC) were determined for integrated mass production to produce extra high-yield-strength microalloyed low carbon SiMnCrNiCu steel plates for offshore structure and bulk shipbuilding. Confocal scanning microscopy was used to make in-situ observations on the austenite grain growth during reheating. A Gleeble 3800 thermomechanical simulator was employed to investigate the flow stress behavior, static recrystallization (SRX) of austenite, and decomposition behavior of the TMCP conditioned austenite during continuous cooling. The Kocks–Mecking model was employed to describe the constitutive behavior, while the Johnson–Mehl–Avrami–Kolmogorov (JMAK) approach was used to predict the SRX kinetics. The effects of hot rolling schedule and AcC on microstructure and properties were investigated by test-scale rolling trials. The bridging between the laboratory observations and the process parameter determination to optimize the mass production was made by integrated industrial production trials on a set of a 5-m heavy plate mill equipped with an accelerated cooling system. Successful production of 60- and 50-mm-thick plates with yield strength in excess of 460 MPa and excellent toughness at low temperature (213 K (–60 °C)) in the parent metal and the simulated coarse-grained heat affected zone (CGHAZ) provides a useful integrated database for developing advanced high-strength steel plates via TMCP-AcC.


Austenite Bainite Acicular Ferrite Polygonal Ferrite Continuous Cool Transformation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



The authors acknowledge the financial support received from Shasteel. The authors are indebted to Ms. S. Chen and Dr. X. Zhang for arranging the hot plate rolling trials. The able assistance received from Dr. H. Zhang, Mr. B. Cheng, and Mr. H. Zhu is warmly appreciated.


  1. 1.
    I.V. Gorynin, V.V. Rybin, V.A. Malyshevskii, and E.I. Khlusova: Met. Sci. Heat Treatment, 2007, vol. 49, pp. 3–9.CrossRefGoogle Scholar
  2. 2.
    K. Ichimiya, H. Sumi, and T. Hirai: JFE Techn. Rep., 2008, June 11, pp. 7–12.Google Scholar
  3. 3.
    W. Schütz and F. Schröter: Mater. Sci. Technol., 2005, vol. 21, pp. 590–96.CrossRefGoogle Scholar
  4. 4.
    N.A. McPherson: Ironmaking and Steelmaking, 2009, vol. 36, pp. 193–200.CrossRefGoogle Scholar
  5. 5.
    Y. Nagai, H. Inoue, T. Nakashima, T. Adachi, H. Fukami, A. Date, and A. Kojima: Nippon Steel Techn. Rep., 2004, July, No. 90, pp. 14–19.Google Scholar
  6. 6.
    Det Norske Veritas Standard: Rules for Classification of Ships/High Speed, Light Craft and Naval Surface Craft on Metallic Materials, Hovik, Norway, 2007, pp.17–26.Google Scholar
  7. 7.
    H. Yin, K. Blazek, and O. Lanzi: ISIJ Int., 2009, vol. 49, pp. 1561–67.CrossRefGoogle Scholar
  8. 8.
    N. Kikuchi, S. Nabeshima, Y. Kishimoto, T. Matsushita, and S. Sridhar: ISIJ Int., 2007, vol. 47, pp. 1255–64.CrossRefGoogle Scholar
  9. 9.
    H. Chikama, H. Shibata, T. Emi, and M. Suzuki: Mater. Trans. JIM, 1996, vol. 37, pp. 620–26. Google Scholar
  10. 10.
    ASTM Standard Designation E112-88, 1994 Annual Book of ASTM Standards, ASTM, Philadelphia, PA, 1994, vol. 3.01, p. 227.Google Scholar
  11. 11.
    A. Giumelli, M. Militzer, and E.B. Hawbolt: ISIJ Int., 1999, vol. 39, pp. 271–80.CrossRefGoogle Scholar
  12. 12.
    D. Liu, F. Fazeli, M. Militzer, and W.J. Poole: Metall. Mater. Trans. A, 2007, vol. 38A, pp. 894–909.CrossRefGoogle Scholar
  13. 13.
    M. Shome and O.N. Mohanty: Metall. Mater. Trans. A, 2006, vol. 37A, pp. 2159–69.CrossRefGoogle Scholar
  14. 14.
    K. Banerjee and U.K. Chatterjee: Metall. Mater. Trans. A, 2003, vol. 34A, pp. 1297–309.CrossRefGoogle Scholar
  15. 15.
    D. Liu, F. Fazeli, and M. Militzer: ISIJ Int., 2007, vol. 47, pp. 1789–98.CrossRefGoogle Scholar
  16. 16.
    S. Sarkar and M. Militzer: Mater. Sci. Technol., 2009, vol. 25, pp. 1134–46.CrossRefGoogle Scholar
  17. 17.
    M. Militzer and Y. Brechet: Metall. Mater. Trans. A, 2009, vol. 40A, pp. 2273–82.CrossRefGoogle Scholar
  18. 18.
    H.J. Frost and M.F. Ashby: Deformation Mechanism Maps, Pergamon Press, Oxford, United Kingdom, 1982.Google Scholar
  19. 19.
    U.F. Kocks and H. Mecking: Prog. Mater. Sci., 2003, vol. 48, pp. 171–273.CrossRefGoogle Scholar
  20. 20.
    M. Avrami: J. Chem. Phys., 1940, vol. 8, pp. 212–24.CrossRefGoogle Scholar
  21. 21.
    M. Militzer, E.B. Hawbolt, and T.R. Meadowcroft: Metall. Mater. Trans. A, 2000, vol. 31A, pp. 1247–59.CrossRefGoogle Scholar
  22. 22.
    R.Y. Zhang and J.D. Boyd: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 1448–59.CrossRefGoogle Scholar
  23. 23.
    S.Y. Han, S.Y. Shin, S. Lee, N.J. Kim, J.H. Bae, and K. Kim: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 329–40.CrossRefGoogle Scholar
  24. 24.
    S.Y. Han, S.Y. Shin, C.H. Seo, H. Lee, J.H. Bae, and K. Kim: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 1851–62.Google Scholar
  25. 25.
    M. Jonsson: ISIJ Int., 2006, vol. 46, pp. 1192–99.CrossRefGoogle Scholar
  26. 26.
    M. Dubois, A. Moreau, M. Militzer, and J.F. Bussiére: Scripta Mater., 1998, vol. 39, pp. 735–41.CrossRefGoogle Scholar
  27. 27.
    A. Smith, S.E. Kruger, J. Sietsma and S. van der Zwaag: ISIJ Int., 2006, vol.46, pp. 1223–32.CrossRefGoogle Scholar
  28. 28.
    C. Capdevila, F.G. Caballero and, C. De Andrés Carcía: ISIJ Int., 2002, vol. 42, pp. 894–902.CrossRefGoogle Scholar
  29. 29.
    Y.K. Lee: J. Mater. Lett., 2002, vol. 21, pp. 1253–55.CrossRefGoogle Scholar
  30. 30.
    B. de Meester: ISIJ Int., 1997, vol. 37, pp. 537–51.CrossRefGoogle Scholar
  31. 31.
    C. Miao, C. Shang, K. Wang, L. Zhang, and S. Mani: Acta Metall. Sinica, 2010, vol. 46, pp. 541–46.CrossRefGoogle Scholar
  32. 32.
    R. Denys: Rev. Soudure, 1994, no. 1, pp. 26–39.Google Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2010

Authors and Affiliations

  1. 1.Institute of Research of Iron and SteelZhangjiagang CityPeople’s Republic of China
  2. 2.Bekaert Binjiang Steel Cord Co. Ltd.Jiangyin CityPeople’s Republic of China

Personalised recommendations