Advertisement

Journal of Materials Science

, Volume 46, Issue 21, pp 7026–7038 | Cite as

Banded structure in Dual Phase steels in relation with the austenite-to-ferrite transformation mechanisms

  • Benoit Krebs
  • Lionel GermainEmail author
  • Alain Hazotte
  • Mohamed Gouné
Article

Abstract

New experimental data are reported relative to the development of banded structures in Mn-segregated Dual Phase steels during the austenite-to-ferrite transformation stage of their final heat treatment. Two types of ferrite are detected to grow simultaneously, i.e. allotriomorph and acicular ferrite, with distinct consequences on the topology of the final (ferrite + martensite) microstructure: allotriomorph ferrite sharpens the banded structure of ferrite and martensite between Mn-poor and Mn-enriched regions, respectively, whereas acicular ferrite favours more isotropic microstructures. Owing to an original image treatment procedure, the sharpness of banded structure is quantitatively analyzed for different heat treatment conditions. Results confirm those of previous works, but we propose to rather explain them by considering that a change in a heat treatment parameter results in a variation in the respective amounts of both ferrite types.

Keywords

Ferrite Austenite Martensite Acicular Ferrite Dual Phase Steel 

Notes

Acknowledgements

The authors gratefully acknowledge Region Lorraine and ArcelorMittal for the financial support of this work.

References

  1. 1.
    Samuels LE (1980) Optical microscopy of carbon steels. American Society for Metals, OhioGoogle Scholar
  2. 2.
    Grostterlinden R, Kawalla R, Lotter U, Pircher H (1992) Steel Res 63:331CrossRefGoogle Scholar
  3. 3.
    Bastien PG (1957) J Iron Steel Inst 187:281Google Scholar
  4. 4.
    Thompson SW, Howell PR (1992) Mater Sci Technol 8:777CrossRefGoogle Scholar
  5. 5.
    Jatczak CF, Girardi DJ, Rowland ES (1956) Trans Am Soc Met 48:279Google Scholar
  6. 6.
    Verhoeven JD (2000) J Mater Eng Perform 9:286CrossRefGoogle Scholar
  7. 7.
    Kirkaldy JS, Von Destinon-Forstmann J, Brigham RJ (1962) Can Metall Q 1:59CrossRefGoogle Scholar
  8. 8.
    Offerman SE, Van Dijk NH, Rekveldt MT, Sietsma J, Van Der Zwaag S (2002) Mater Sci Technol 18:297CrossRefGoogle Scholar
  9. 9.
    Xu W, Riviera-Del-Castillo PEJ, Van Der Zwaag S (2005) ISIJ Int 45:380CrossRefGoogle Scholar
  10. 10.
    Krebs B (2009) PhD thesis, Université Paul-Verlaine de MetzGoogle Scholar
  11. 11.
    Krebs B, Germain L, Gouné M, Hazotte A (2011) Int J Mater Res 2:200CrossRefGoogle Scholar
  12. 12.
    Serra J (1982) Image analysis and mathematical morphology. Academic Press, LondonGoogle Scholar
  13. 13.
    Stoyan D, Kendall WS, Mecke J (1987) Stochastic geometry and its applications. Wiley, New YorkGoogle Scholar
  14. 14.
    Schwarzer RA (1993) Textures Microstruct 20:7CrossRefGoogle Scholar
  15. 15.
    Kurdjumov G, Sachs G (1930) Z Phys 64:325CrossRefGoogle Scholar
  16. 16.
    Humbert M, Blaineau P, Germain L, Gey N (2011) Scr Mater 64:114CrossRefGoogle Scholar
  17. 17.
    Allain S, Gouné M, Bouaziz O, Kassir E, Jantzen J (2011) J Mater Sci 46:2764CrossRefGoogle Scholar
  18. 18.
    Kim DW, Suh DW, Qin RS, Bhadeshia HKDH (2010) J Mater Sci 45:4126CrossRefGoogle Scholar
  19. 19.
    Bodnar RL, Hansen SS (1994) Metall Mater Trans A 25:763CrossRefGoogle Scholar
  20. 20.
    Krahe PR, Kinsman KR, Aaronson HI (1972) Acta Metall 20:1109CrossRefGoogle Scholar
  21. 21.
    Aaronson HI, Eylon D, Cooke CM, Enomoto M, Frees FH (1989) Scr Metall 23:435CrossRefGoogle Scholar
  22. 22.
    Jones SJ, Bhadeshia HKDH (1997) Acta Mater 45:2911CrossRefGoogle Scholar
  23. 23.
    Bhadeshia HKDH (2001) Bainite in steels, 2nd edn. IOM Communication Ltd, LondonGoogle Scholar
  24. 24.
    Strangwood M, Bhadeshia HKDH (1987) In: Proceedings of the conference on advances in welding science and technology, Ohio, USA, ASM International, p 187Google Scholar
  25. 25.
    Aaronson HI, Spanos G, Masamura RA, Vardiman RG, Moon DW, Menon ESK, Hall MG (1995) Metall Mater Trans B 32:107Google Scholar
  26. 26.
    Loginova I, Agren J, Amberg G (2004) Acta Mater 52:4055CrossRefGoogle Scholar
  27. 27.
    Phelan D, Stanford N, Dippenaar R (2005) Mater Sci Eng A 407:127CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Benoit Krebs
    • 1
  • Lionel Germain
    • 1
    Email author
  • Alain Hazotte
    • 1
  • Mohamed Gouné
    • 2
  1. 1.Laboratoire d’Etude des Microstructures et de Mécanique des Matériaux (LEM3), UMR CNRS 7239Université Paul VerlaineMetzFrance
  2. 2.ArcelorMittal Research SA, R&D Automotive Products, Voie RomaineMaizières-lès-MetzFrance

Personalised recommendations