Metallurgical and Materials Transactions A

, Volume 47, Issue 10, pp 4777–4783 | Cite as

Low-Temperature Toughness of the Austempered Offshore Steel

  • C. Yu
  • T. C. Yang
  • C. Y. Huang
  • R. K. ShiueEmail author


This study investigates low-temperature toughness of the offshore steel with two different austempering heat treatments. Toughness of upper bainite is significantly lower than that of lower bainite. Low impact toughness of the upper bainite is caused by the presence of martensite–austenite (MA) and increasing the amount of low-angle lath boundaries in upper bainite package. EBSD equipped in the SEM demonstrates an effective approach to analyze the misorientation angle of lath boundaries in upper bainite packet.


Bainite Impact Toughness Austempering Lower Bainite Lath Boundary 
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The authors gratefully acknowledge the financial support for this research provided by the Ministry of Science and Technology (MOST), Taiwan, under Grant Number MOST 103-2622-E-006-037 and 104-2622-E-006-001.


  1. 1.
    S. K. Dhua, D. Mukerjee and D. S. Sarma: Metall. Mater. Trans., 2001, vol. 32A, pp. 2259-2270.CrossRefGoogle Scholar
  2. 2.
    Norsok Standard, Material Data Sheets for Structural Steel, Rev. 3, 2000, Norway Technology Center, Oslo, Norway.Google Scholar
  3. 3.
    B. Hwang, C. G. Lee and S. J. Kim: Metall. Mater. Trans., 2011, vol. 42A, pp. 717-728.CrossRefGoogle Scholar
  4. 4.
    S. S. Kang, A. Bolouri and C. G. Kang: Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials Design and Applications, 2012, vol. 226, pp. 242-251.Google Scholar
  5. 5.
    N. Isasti, D. Jorge-Badiola, M. Taheri and P. Uranga: Metall. Mater. Trans., 2014, vol. 45A, pp. 4972-4982.CrossRefGoogle Scholar
  6. 6.
    P. Mohseni, J. K. Solberg, M. Karlsen, O. M. Akselsen and E. Ostby: Metall. Mater. Trans., 2014, vol. 45A, pp. 384-94.CrossRefGoogle Scholar
  7. 7.
    N. Huda, A. R. H. Midawi, J. Gianetto, R. Lazor and A. P. Gerlich: Mater. Sci. Eng., 2016, vol. 662A, pp. 481-491.CrossRefGoogle Scholar
  8. 8.
    S. Y. Han, S. Y. Shin, S. Lee, N. J. Kim, J. H. Bae and K. Kim: Metall. Mater. Trans., 2010, vol. 41A, pp. 329-340.CrossRefGoogle Scholar
  9. 9.
    H.K. Sung, S. Lee and S.Y. Shin: Metall. Mater. Trans., 2014, vol. 45A, pp. 2001-2013.Google Scholar
  10. 10.
    X. Li, Y. Fan, X. Ma, S. V. Subramanian and C. Shang: Mater Design, 2015, vol. 67, pp. 457-463.CrossRefGoogle Scholar
  11. 11.
    X. Li, X. Ma, S. V. Subramanian, C. Shang and R. D. K. Misra: Mater. Sci. Eng., 2014, vol. 616A, pp. 141-47.CrossRefGoogle Scholar
  12. 12.
    Y. M. Kim, S. Y. Shin, H. Lee, B. Hwang, S. Lee and N. J. Kim: Metall. Mater. Trans., 2007, vol. 38A, pp. 1731-1742.CrossRefGoogle Scholar
  13. 13.
    T. Furuhara, H. Kawata, S. Morito and T. Maki: Mater. Sci. Eng., 2006, vol. 431A, pp. 228-236.CrossRefGoogle Scholar
  14. 14.
    W. L. Costin, O. Lavigne and A. KotouSov: Mater. Sci. Eng., 2016, vol. 663A, pp. 193-203.CrossRefGoogle Scholar
  15. 15.
    H. Kuhn, and D. Medlin, ASM Handbook, Volume 8 Mechanical Testing and Evaluation, 2000, ASM International, Materials Park, USA.Google Scholar
  16. 16.
    J-M Haudin, A. Carin, M. Vincent, N. Amouroux, G. Bellet, F. Montezin, Int. J. Mater. Form., 2010, vol. 3, pp. 225-231.CrossRefGoogle Scholar
  17. 17.
    A. Lambert-Perlade, A.F. Gourgues and A. Pineau: Acta Mater., 2004, vol. 52, pp. 2337-2348.CrossRefGoogle Scholar
  18. 18.
    A. Lambert-Perlade, A.F. Gourgues, J. Besson, T. Sturel and A. Pineau: Metall. Mater. Trans., 2004, vol. 35A, pp. 1039-1053.CrossRefGoogle Scholar
  19. 19.
    C. Hofer, F. Winkelhofer, H. Clemens and S. Primig: Mater. Sci. Eng., 2016, vol. 664A, pp. 236-246.CrossRefGoogle Scholar
  20. 20.
    X. L. Wang, X.M. Wang, C. J. Shang and R. D. K. Misra: Mater. Sci. Eng., 2016, vol. 649A, pp. 282-292.CrossRefGoogle Scholar
  21. 21.
    L. Lan, X. Kong, C. Qiu and D. Zhao: Mater Design, 2016, vol. 90, pp. 488-498.CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2016

Authors and Affiliations

  • C. Yu
    • 1
  • T. C. Yang
    • 2
  • C. Y. Huang
    • 2
  • R. K. Shiue
    • 1
    Email author
  1. 1.Department of Materials Science and EngineeringNational Taiwan UniversityTaipeiTaiwan
  2. 2.China Steel CorporationKaohsiungTaiwan

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