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Phase Transformation Study in Nb-Mo Microalloyed Steels Using Dilatometry and EBSD Quantification

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A complete microstructural characterization and phase transformation analysis has been performed for several Nb and Nb-Mo microalloyed low-carbon steels using electron backscattered diffraction (EBSD) and dilatometry tests. Compression thermomechanical schedules were designed resulting in the undeformed and deformed austenite structures before final transformation. The effects of microalloying additions and accumulated deformation were analyzed after CCT diagram development and microstructural quantification. The resulting microstructures ranged from polygonal ferrite and pearlite at slow cooling ranges, to a combination of quasipolygonal ferrite and granular ferrite for intermediate cooling rates, and finally, to bainitic ferrite with martensite for fast cooling rates. The addition of Mo promotes a shift in the CCT diagrams to lower transformation start temperatures. When the amount of Nb is increased, CCT diagrams show little variations for transformations from the undeformed austenite and higher initial transformation temperatures in the transformations from the deformed austenite. This different behavior is due to the effect of niobium on strain accumulation in austenite and its subsequent acceleration of transformation kinetics. This article shows the complex interactions between chemical composition, deformation, and the phases formed, as well as their effect on microstructural unit sizes and homogeneity.

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References

  1. S.G. Jansto: New Developments on Metallurgy and Applications of High Strength Steels Conf. Buenos Aires, 2008, TMS, Warrendale, PA, pp. 1313–26.

  2. N.A. McPherson: Ironmaking and Steelmaking, 2009, vol. 36, pp. 193–200.

    Article  CAS  Google Scholar 

  3. E.J. Czyryca, D.P. Kihl, and R. DeNale: AMPTIAC Q., 2003, vol. 7, pp. 63–70.

    Google Scholar 

  4. D. Bhattacharya: 6th Int. Conf. on High Strength Low Alloy Steels, HSLA’2011, Beijing, China, 2011, CD-Rom.

  5. C.I. Garcia, K. Cho, M. Hua and A.J. DeArdo: Mater. Sci. Forum, 2010, vols. 638-642, pp. 124-29.

    Article  Google Scholar 

  6. F.G. Caballero and C. García-Mateo: Phase Transformations in Steels, E. Pereloma and D.V. Edmonds, eds., Woodhead Publishing, Philadelphia, PA, 2002, vol. 2, pp. 271–94.

  7. C.I. Garcia: Int. Conf. Microalloying ‘95, ISS, Warrendale, PA, 1995, pp. 365–75.

  8. G. Krauss and S.W. Thompson: ISIJ Int., 1995, vol. 35, pp. 937–45.

    Article  CAS  Google Scholar 

  9. H. Mohrbacher: International Seminar on Applications of Mo in steels, Beijing, China, 2010, pp. 75–96.

  10. M.G. Akben, I. Weiss, and J.J. Jonas: Acta Metall., 1981, vol. 29, pp. 111–21.

    Article  CAS  Google Scholar 

  11. O. Kwon and A.J. DeArdo: Acta Metall. Mater., 1991, vol. 39, pp. 529–38.

    Article  CAS  Google Scholar 

  12. X. Sun and Q. Yong: International Seminar on Applications of Mo in steels, Beijing, China, 2010, pp. 61–74.

  13. B.L. Bramfitt and J.G. Speer: Metall. Trans. A, 1990, vol. 21A, pp. 817–29.

    CAS  Google Scholar 

  14. T. Araki, I. Kozasu, H. Tankechi, K. Shibata, M. Enomoto, and H. Tamehiro, eds., Atlas for Bainitic Microstructures, ISIJ, Tokyo, 1992, vol. 1.

  15. H.I. Aaronson and H.A. Domian: Trans. AIME, 1966, vol. 236, pp. 781–96.

    CAS  Google Scholar 

  16. M. Hillert: Solid–Solid Phase Transformations, H.I. Aaronson, D.E. Laughlin, R.F. Sekerka, and C.M. Wayman, eds., TMS, Warrendale, PA, 1982, pp. 789–806.

  17. D.E. Coates: Metall. Trans., 1973, vol. 4, pp. 2313–25.

    Article  CAS  Google Scholar 

  18. T.B. Massalski: Phase Transformations, ASM, Metals Park, OH, 1970, pp. 433–95.

    Google Scholar 

  19. M. Hillert: Metall. Trans. A, 1984, vol. 15A, pp. 411–19.

    CAS  Google Scholar 

  20. H.J. Lee, G. Spanos, G.J. Shiflet, and H.I. Aaronson: Acta Metall., 1988, vol. 36, pp. 1129–40.

    Article  CAS  Google Scholar 

  21. H.K.D.H. Bhadeshia and J.W. Christian: Metall. Trans. A, 1990, vol. 21A, pp. 767-97.

    CAS  Google Scholar 

  22. J. Cawley, C.F. Harris, and E.A. Wilson: New Aspects of Microstructures in Modern Low Carbon High Strength Steels Symp., ISIJ, Tokyo, 1994, pp. 11–14.

  23. K. Shibata and K. Asakura: New Aspects of Microstructures in Modern Low Carbon High Strength Steels Symp., ISIJ, Tokyo, 1994, pp. 31–34.

  24. H.K.D.H. Bhadeshia: Bainite in Steels, Transformations, Microstructure and Properties, 2nd ed., The Institute of Materials, London, 2001, pp. 277–79.

    Google Scholar 

  25. S. Zajac, V. Schwinn, and K.H. Tacke: Mater. Sci. Forum, 2005, vols. 500–501, pp. 387–94.

    Article  Google Scholar 

  26. N. Takayama, G. Miyamoto, N. Kamikawa, H. Nako, T. Maki, and T. Furuhara: Mater. Sci. Forum, 2010, vols. 638–642, pp. 3080–85.

    Article  Google Scholar 

  27. P.A. Manohar, T.R. Chandra, and C.R. Killmore: ISIJ Int. 1996, vol. 36, pp. 1486–93.

    Article  CAS  Google Scholar 

  28. N. Isasti, D. Jorge-Badiola, M.L. Taheri, B. López and P. Uranga: Metall. Mater. Trans. A, 2011, vol. 42A, pp. 3729-42.

    Article  Google Scholar 

  29. W.-B. Lee, S.-G. Hong, C.-G. Park, and S.-H. Park: Metall. Mater. Trans. A, 2002, vol. 33A, pp. 1689–98.

    Article  CAS  Google Scholar 

  30. T. Hanamura, F. Yin, and K. Nagai: ISIJ Int., 2004, vol. 44, pp. 610–17.

    Article  CAS  Google Scholar 

  31. C. Garcia de Andres, F.G. Caballero, C. Capdevila, and L.F. Alvarez: Mater. Charact., 2002, vol. 48, pp. 101-11.

    Article  CAS  Google Scholar 

  32. R. Petrov, L. Kestens, and Y. Houbaert: Mater. Charact., 2004, vol. 53, pp. 51–61.

    Article  CAS  Google Scholar 

  33. ABAQUS Reference Manuals: Dassault Systèmes, Providence, RI, 2009.

  34. ISO 13067:2011(E), Microbeam analysis—Electron backscatter diffraction—Measurement of average grain size, p. 7.

  35. A. Iza-Mendia, and I. Gutiérrez: Mater. Sci. Eng. A, 2013, vol. A561, pp. 40–51.

    Google Scholar 

  36. G.I. Rees, J. Perdrix, T. Maurickx, and H.K.D.H. Bhadeshia: Mater. Sci. Eng. A, 1995, vol. A194, pp. 179-86.

    Article  Google Scholar 

  37. R.T. De Hoff and F. N. Rhines: Quantitative Metallography, McGraw-Hill Book Co., New York, 1968.

    Google Scholar 

  38. D.N. Hanlon, J. Sietsma, and S. van der Zwaag: ISIJ Int, 2001, vol. 41, pp. 1028–36.

    Article  CAS  Google Scholar 

  39. Y. van Leeuwen and J. Sietsma: Mater. Sci. Forum, 2007, vols. 539–543, pp. 4572–77.

    Article  Google Scholar 

  40. R. Bengochea, B. López, and I. Gutiérrez: Mater. Sci. Forum, 1998, vols. 284–286, pp. 201–08.

    Article  Google Scholar 

  41. C. Calvo, I.-H. Jung, A.M. Elwazri, D. Bai, and S. Yue: Mater. Sci. Eng. A, 2009, vol. 520, pp. 90–96.

    Article  Google Scholar 

  42. J.L. Lanzagorta, D. Jorge-Badiola, and I. Gutierrez: Mater. Sci. Eng. A, 2010, vol. 527, pp. 934–40.

    Article  Google Scholar 

  43. R.Y. Zhang and J.D. Boyd: Metall. Mater. Trans. A, 2010, vol. 41A, pp. 1448-59.

    Article  CAS  Google Scholar 

  44. M. Militzer, E.B. Hawbolt, and T.R. Meadowcroft, Metall. Mater. Trans. A, 2000, vol. 31A, pp. 1247–59.

    Article  CAS  Google Scholar 

  45. A.K. Lis and J. Lis: Mater. Sci. Forum, 2007, vol. 539-543, pp. 4620-4625.

    Article  Google Scholar 

  46. M. Olasolo, P. Uranga, J.M. Rodriguez-Ibabe, and B. Lopez: Mater. Sci. Eng. A, 2011, vol. 528, pp. 2559-69.

    Article  Google Scholar 

  47. B. Pereda, J. M. Rodriguez-Ibabe and B. López: ISIJ Int., 2008, vol. 48, pp. 1457–1466.

    Article  CAS  Google Scholar 

  48. P. Cizek, B.P. Wynne, C.H.J. Davies, B.C. Muddle, and P.D.Hodgson: Metall. Mater. Trans. A, 2002, vol. 33A, pp. 1331–49.

    Article  CAS  Google Scholar 

  49. S. Zaefferer, P. Romano, and F. Friedel: J. Microscopy, 2008, Vol. 230, pp. 499–508.

    Article  CAS  Google Scholar 

  50. E.P. Kwon, S. Fujieda, K. Shinoda, and S. Suzuki: Mat. Sci. and Eng. A, 2011, vol. 528, pp. 5007–17.

    Article  CAS  Google Scholar 

  51. F. Gerdemann, M. Fischer, W. Bleck, and J.G. Speer: New Developments on Metallurgy and Applications of High Strength Steels Conf., Buenos Aires, 2008, TMS, Warrendale, PA, pp. 93–103.

  52. A.W. Wilson and G. Spanos: Mater. Charact., 2001, vol. 46, pp. 407–18.

    Article  CAS  Google Scholar 

  53. H. Kitahara, R. Ueji, N. Tsuji, and Y. Minamino: Acta Mater., 2006, vol. 54, pp. 1279–1288.

    Article  CAS  Google Scholar 

  54. W. Wang, W. Yan, L. Zhu, P. Hu, Y. Shan, and K. Yang: Mater. Design, 2009, vol. 30, pp. 3436–43.

    Article  CAS  Google Scholar 

  55. M.J. Merwin, C.T. Becker, and D.R. Giansante: Materials Science and Technology 2009 Conference, 2009, Pittsburgh, PA, pp. 956–68.

  56. A. From and R. Sandström: Mater. Charact., 1999, vol. 42, pp. 111–22.

    Article  CAS  Google Scholar 

  57. I. Tamura: Int. Conf. Thermec ‘88, ISIJ, Tokyo, 1988, pp. 1–10.

  58. T. Tanaka: Int. Conf. Microalloying 95, M. Korchynsky, A.J. DeArdo, P. Repas, and G. Tither, eds., Pittsburgh, ISS, Warrendale, PA, 1995, pp. 165–81.

  59. R. Bengochea, B. Lopez, and I. Gutierrez: Metall. Mater. Trans. A, 1998, vol. 29A, pp. 417–26.

    Article  CAS  Google Scholar 

  60. T. Furuhara, N. Takayama, and G. Miyamoto: Mater. Sci. Forum, 2010, vols. 638-642, pp. 3044-49.

    Article  Google Scholar 

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Acknowledgments

The financial support of the Spanish Ministry of Economy and Competitiveness (MAT2009-09250 and MAT2012-31056) and Basque Government (PI2011-17) is acknowledged.

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Authors and Affiliations

  1. CEIT and TECNUN, University of Navarra, P° de Manuel Lardizabal 15, 20018, Donostia-San Sebastián, Basque Country, Spain

    Nerea Isasti (Ph.D. Student), Denis Jorge-Badiola (Researcher) & Pello Uranga (Researcher and Associate Professor)

  2. Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA

    Mitra L. Taheri (Hoeganaes Assistant Professor)

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  1. Nerea Isasti
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  2. Denis Jorge-Badiola
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  3. Mitra L. Taheri
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  4. Pello Uranga
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Correspondence to Pello Uranga.

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Manuscript submitted January 15, 2013.

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Isasti, N., Jorge-Badiola, D., Taheri, M.L. et al. Phase Transformation Study in Nb-Mo Microalloyed Steels Using Dilatometry and EBSD Quantification. Metall Mater Trans A 44, 3552–3563 (2013). https://doi.org/10.1007/s11661-013-1738-3

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