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Microstructural and precipitation characterization in Nb-Mo microalloyed steels: Estimation of the contributions to the strength

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Abstract

The influence of coiling temperature on the final microstructure and precipitation has been analyzed in several low carbon Nb and Nb-Mo microalloyed steels. A throughout characterization of the complex microstructures has been performed using electron backscattered diffraction, measuring low and high angle unit sizes, microstructural substructure, as well as quantifying the homogeneity. An important microstructural refinement is observed for all compositions as the coiling temperature decreases. Regarding precipitation, the coiling temperature strongly modifies the size and density of the fine precipitates, being 550 °C the optimal coiling temperature for the Nb-Mo steels. The addition of Mo to Nb steels provides a refinement of the precipitates and, therefore, enhances their contribution to strengthening. Considering all the microstructural and precipitation quantification data, the yield strength was estimated and the contribution of the different mechanisms calculated. The grain size contribution is proven to be the most important factor regarding strengthening, followed by dislocation density and precipitation especially at low coiling temperatures and Nb-Mo steels.

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References

  1. S. G. Jansto, Proc. New Developments on Metallurgy and Applications of High Strength Steels Conf., p. 1313, John Wiley & Sons, Inc., Buenos Aires, Argentina (2008).

    Google Scholar 

  2. D. Bhattacharya, Proc. 6 th Int. Conf. on High Strength Low Alloy Steels, HSLA’2011, The Chinese Society for Metals, Beijing, China (2011).

    Google Scholar 

  3. M. Gómez, L. Rancel, and S. F. Medina, Met. Mater. Int. 15, 689 (2009).

    Article  Google Scholar 

  4. H. Mohrbacher, Proc. Int. Seminar on Applications of Mo in Steels, p. 75 (eds. {ieCISRI and IMOA}), Beijing, China (2010).

    Google Scholar 

  5. R. D. K. Misra, H. Nathani, J. E. Hartmann, and F. Siciliano, Mater. Sci. Eng. A, 394, 339 (2005).

    Article  Google Scholar 

  6. M. A. Altuna, A. Iza-Mendia, and I. Gutierrez, La Metallurgia Italiana. pp.41–47 (2009).

    Google Scholar 

  7. A. J. DeArdo, Int. Mat. Rev. 48, 371 (2003).

    Article  Google Scholar 

  8. V. Thillou, M. Hua, C. I. Garcia, C. Perdrix, and A. J. DeArdo, Mater. Sci. Forum, 284–286, 311 (1998).

    Article  Google Scholar 

  9. A. Iza-Mendia, M. A. Altuna, B. Pereda, and I. Gutierrez, Met. Mater. Trans. A, 43, 4553 (2012).

    Article  Google Scholar 

  10. W. B. Lee, S. G. Hong, C. G. Park, K. H. Kim, and S. H. Park, Scripta Mater., 43, 319 (2000).

    Article  Google Scholar 

  11. W. B. Lee, S. G. Hong, C. G. Park, and S. H. Park, Met. Mater. Trans. A, 33, 1689 (2002).

    Article  Google Scholar 

  12. N. Isasti, D. Jorge-Badiola, M. L. Taheri, B. López, and P. Uranga, Met. Mater. Trans. A, 42, 3729 (2011).

    Article  Google Scholar 

  13. N. Isasti, B. Pereda, B. López, J.M. Rodriguez-Ibabe, and P. Uranga, Nb and Mo Metallurgy for More Sustainable Steels, (ed. H. Mohrbacher), TMS, Warrendale, USA, (2013). (In press).

  14. N. Isasti, D. Jorge-Badiola, M. L. Taheri, and P. Uranga, Met. Mat. Trans. A, 44, 3552 (2013).

    Article  Google Scholar 

  15. A. Iza-Mendia and I. Gutiérrez, Mater. Sci. Eng. A, 561, 40 (2013).

    Article  Google Scholar 

  16. M. J. Merwin, C. T. Becker, and D. R. Giansante, Proc. MS&T’09 Conf., p. 956, (eds. {ieACerS, AIST, ASM, TMS}), Pittsburgh, USA (2009).

    Google Scholar 

  17. P. Cizek, B. P. Wynne, C. H. J. Davies, B. C. Muddle, and P. D. Hodgson, Met. Mater. Trans. A, 33, 1331 (2002).

    Article  Google Scholar 

  18. D. N. Hanlon, J. Sietsma, and S. van der Zwaag, ISIJ Int. 41, 1028 (2001).

    Article  Google Scholar 

  19. Y. van Leeuwen and J. Sietsma, Mater. Sci. Forum, 539–543, 4572 (2007).

    Article  Google Scholar 

  20. M. Olasolo, P. Uranga, J.M. Rodriguez-Ibabe, and B. López, Mater. Sci. Eng. A, 528, 2559, (2011).

    Article  Google Scholar 

  21. P. Uranga, A. I. Fernández, B. López, and J. M. Rodriguez-Ibabe, Proc. 43 rd Mechanical Working and Steel Processing Conf., p. 511, ISS, Warrendale, USA (2001).

    Google Scholar 

  22. N. Isasti, Ph. D. Thesis, University of Navarra, Donostia-San Sebastian, Spain (2013).

    Google Scholar 

  23. S. Vervynckt, P. Thibaux, and K. Verbeken, Met. Mater. Int. 18, 37 (2012).

    Article  Google Scholar 

  24. H. Wada and R. D. Pehlke, Met. Trans. B, 16, 815 (1985).

    Article  Google Scholar 

  25. M. G. Akben, B. Bacroix, and J. J. Jonas, Acta Met. 31, 161 (1983).

    Article  Google Scholar 

  26. F. B. Pickering, Physical Metallurgy and the Design of Steels, p. 10, Applied Science Publishers, London, UK (1978).

    Google Scholar 

  27. I. A. Yakubtsov, J. D. Boyd, W. J. Liu, and E. Essadiqui, Proc. 42 nd Mechanical Working and Steel Processing Conf., p. 429, ISS, Warrendale, USA (2000).

    Google Scholar 

  28. J. Lu, D. Ivey and H. Henein, Iron & Steel Technol. 10, 232 (2013).

    Google Scholar 

  29. F. B. Pickering and T. Gladman, Metallurgical Developments in Carbon Steels, Special Report No. 81, Iron and Steel Institute, London, UK (1963).

    Google Scholar 

  30. M. Calcagnotto, D. Ponge, E. Demir, and D. Raabe, Mater. Sci. Eng. A, 527, 2738, (2010).

    Article  Google Scholar 

  31. L. P. Kubin and A. Mortensen, Scripta Mater. 48, 119 (2003).

    Article  Google Scholar 

  32. T. Gladman, Mater. Sci. Technol. 15, 30 (1999).

    Article  Google Scholar 

  33. M. F. Ashby and R. Ebeling, AIME Met. Soc. Trans. 236, 1396 (1966).

    Google Scholar 

  34. K. Poorhaydari and D. G. Ivey, Can. Met. Quart. 48, 115 (2009).

    Article  Google Scholar 

  35. M. E. Bush and P. M. Kelly, Acta Met. 19, 1363 (1971).

    Article  Google Scholar 

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Authors and Affiliations

  1. CEIT and TECNUN (University of Navarra), Manuel Lardizabal 15, 20018, Donostia-San Sebastian, Basque Country, Spain

    N. Isasti, D. Jorge-Badiola & P. Uranga

  2. Department of Materials Science, Drexel University, Lebow 344, Philadelphia, PA, 19104, USA

    M. L. Taheri

Authors
  1. N. Isasti
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  2. D. Jorge-Badiola
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  3. M. L. Taheri
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  4. P. Uranga
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Correspondence to P. Uranga.

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Isasti, N., Jorge-Badiola, D., Taheri, M.L. et al. Microstructural and precipitation characterization in Nb-Mo microalloyed steels: Estimation of the contributions to the strength. Met. Mater. Int. 20, 807–817 (2014). https://doi.org/10.1007/s12540-014-5002-1

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  • DOI: https://doi.org/10.1007/s12540-014-5002-1

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