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Residual Ferrite and Relationship Between Composition and Microstructure in High-Nitrogen Austenitic Stainless Steels

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Abstract

A series of high-nitrogen stainless steels (HNS) containing δ-ferrite, which often retained in HNS, were studied to establish the relationship between composition and microstructure. Both ferrite and nitrogen depletions were found in the center regions of cast ingots, and the depletion of nitrogen in that area was found to be the main reason for the existence of δ-ferrite. Because of the existence of heterogeneity, the variation of microstructure with nitrogen content was detected. Hence, the critical contents of nitrogen (CCN) for the fully austenitic HNS were obtained. Then the effects of elements such as N, Cr, Mn, and Mo on austenite stability were investigated via thermodynamic calculations. The CCN of HNS alloys were also obtained by calculations. Comparing the CCN obtained from experiment and calculation, it was found that the forged microstructure of the HNS was close to the thermodynamic equilibrium. To elucidate the above relationship, by regression analysis using calculated thermodynamic data, nitrogen equivalent and a new constitution diagram were proposed. The constitution diagram accurately distinguishes the austenitic single-phase region and the austenite + ferrite dual-phase region. The nitrogen equivalent and the new constitution diagram can be used for alloying design and microstructural prediction in HNS. According to the nitrogen equivalent, the ferrite stabilizing ability of Mo is weaker than Cr, and with Mn content increases, Mn behaves as a weak austenite stabilizer first and then as a ferrite stabilizer.

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References

  1. M.O. Speidel: High Nitrogen Steel 88, J. Foct, A. Hendry, ed., The Institute of Metals, London, 1989, pp 92-96.

    Google Scholar 

  2. M.O. Speidel and H.J. Speidel: High Nitrogen Steel 09, A.G. Svyazhin, V.G. Prokoshkina, K.L. Kossyrev, ed., Misis, Moscow, 2009, pp 121-128.

    Google Scholar 

  3. U.K. Mudali and B. Raj: High nitrogen steels and stainless steels,1st ed., p. 182, Alpha Science International, Pangbourne, UK, 2004.

    Google Scholar 

  4. V.G. Gavriljuk and H. Berns: High Nitrogen Steels, 1st ed., Springer, Berlin, 1999, p. 133.

    Book  Google Scholar 

  5. K.H. Lo, C.H. Shek, and J.K.L. Lai: Mater. Sci. Eng. R, 2009, vol. 65, pp. 39-104.

    Article  Google Scholar 

  6. J.W. Simmons: Mater. Sci. Eng. A, 1996, vol. 207, pp. 159-169.

    Article  Google Scholar 

  7. P.J. Uggowitzer, R. Magdowski and M.O. Speidel: ISIJ Int., 1996, vol. 36, pp 901-908.

    Article  Google Scholar 

  8. K. Yang and Y.B. Ren: Sci. Technol. Adv. Mater., 2010, vol. 11, pp. 1-13.

    Article  Google Scholar 

  9. J. Menzel, W. Kirschner and G. Stein: ISIJ Int., 1996, vol. 36, pp 893-900.

    Article  Google Scholar 

  10. M. Sumita, T. Hanawa and S.H. Teoh: Mater. Sci. Eng. C, 2004, vol. 24, pp. 753-760.

    Article  Google Scholar 

  11. M. Niinomi, M. Nakai and J. Hieda: Acta Biomater., 2012, vol. 8, pp. 3888-3903.

    Article  Google Scholar 

  12. M. Fini, N. Nicoli Aldini, P. Torricelli, G. Giavaresi, V. Borsari, H. Lenger, J. Bernauer, R. Giardino, R. Chiesa and A. Cigada: Biomaterials, 2003, vol. 24, pp. 4929-4939.

    Article  Google Scholar 

  13. M. Talha, C.K. Behera and O.P. Sinha: Mater. Sci. Eng. C, 2013, vol. 33(7), pp. 3563-3575.

    Article  Google Scholar 

  14. Y. Ustinovshikov, A. Ruts, O. Bannykh and V. Blinov: Acta Mater., 1996, vol. 44, pp. 1119-1125.

    Article  Google Scholar 

  15. T.H. Lee, S.J. Kim and S. Takaki: Metall. Mater. Trans. A, 2006, vol. 37, pp. 3445-3454.

    Article  Google Scholar 

  16. T.H. Lee, H.Y. Ha, B. Hwang and S.J. Kim: Metall. Mater. Trans. A, 2012, vol. 43, pp. 822-832.

    Article  Google Scholar 

  17. Di Schino, M.G. Mecozzi, M. Barteri and J. M. Kenny: J. Mater. Sci., 2000, vol. 35, pp. 375-380.

    Article  Google Scholar 

  18. D. Baldissin and L. Battezzati: Scr. Mater., 2006, vol. 55, pp. 839-842.

    Article  Google Scholar 

  19. A.L Schaeffler: Met. Prog., 1949, vol. 56, pp. 680-680B.

  20. R.L. Klueh, P.J. Maziasz and E.H. Lee: Mater. Sci. Eng. A, 1988, vol. 102, pp. 115-124.

    Article  Google Scholar 

  21. C.J. Long and W.T. DeLong: Weld. J., 1973, vol. 52, p. 281.

    Google Scholar 

  22. F.C. Hull: Weld. J., 1973, vol. 52, pp. 193-203.

    Google Scholar 

  23. M. Onozuka, T. Saida, S. Hirai, M. Kusuhashi, I. Sato and T. Hatakeyama: J. Nucl. Mater., 1998, vol. 255, pp. 128-138.

    Article  Google Scholar 

  24. J. Glownia, B. Kalandyk and K. Hübner: Mater. Charact., 2001, vol. 47, pp. 149-155.

    Article  Google Scholar 

  25. M.O. Speidel and P.J. Uggowitzer: Proc. Materials Week 92, R.A Lula, ed., ASM Int., Chicago, 1992, pp 135-142.

  26. M.O. Speidel and H.J. Speidel: High Nitrogen Steel 06, H. Dong, J. Su, and M.O. Speidel, eds., Metallurgical Industry Press, Beijing, 2006, pp. 21–29.

  27. J.O. Andersson, T. Helander, L. Höglund, P. Shi and B. Sundman: Calphad, 2002, vol. 26, pp. 273-312.

    Article  Google Scholar 

  28. T.H Lee, C.S. Oh, C.G. Lee, S.J. Kim and S. Takaki: Scr. Mater., 2004, vol. 50, pp. 1325-1328.

    Article  Google Scholar 

  29. C.M. Hong, J. Shi, L.Y. Sheng, W.Q. Cao, W.J. Hui and H. Dong: J. Mater. Sci., 2011, vol. 46, pp. 5097-5103.

    Article  Google Scholar 

  30. D. Heger and T.V. Duong: Defect Diffus. Forum, 1997, vol. 143, pp. 443-448

    Article  Google Scholar 

  31. Arcos Welding Products, Arcos Corporation, Philadelphia, 1975, p. 29.

  32. G. Stein and I. Hucklenbroich: Mater. Manuf. Processes, 2004, vol. 19, pp. 7-17.

    Article  Google Scholar 

  33. H. Berns, V.G. Gavriljuk, and S. Riedner: High Interstitial Stainless Austenitic Steels, 1st ed., Springer, Berlin, 2013, p. 2.

    Book  Google Scholar 

  34. H.O. Andrén, U. Rolander and G. Wahlberg: Le J. Phys. (Paris), 1988, vol. 49, pp. 305-310.

    Google Scholar 

  35. Y.P. Ren, C.F. Li, G.W. Qin, W.L. Pei, H.X. Li and S.M. Hao: J. Mater. Metall., 2011, vol. 10, pp. 129-131.

    Google Scholar 

  36. K.L. Chao, H.Y. Liao, J.J. Shyue and S.S. Lian: Metall. Mater. Trans. B, 2014, vol. 45B, pp. 381-391.

    Article  Google Scholar 

  37. A. Sato, E. Chishima, K. Soma, T. Mori: Acta Mater., 1982, vol. 30(6), pp. 1177-1183.

    Article  Google Scholar 

  38. S.R. Chen, H.A. Davies and W.M. Rainforth: Acta Mater., 1999, vol. 47(18), pp. 4555-4569.

    Article  Google Scholar 

  39. V. Raghavan: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 237-242.

    Article  Google Scholar 

  40. N. Suutala: Metall. Mater. Trans. A, 1982, vol. 13A, pp. 2121-2130.

    Article  Google Scholar 

  41. L. Weber and P.J. Uggowitzer: Mater. Sci. Eng. A, 1998, vol. 242, pp. 222-229.

    Article  Google Scholar 

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Acknowledgments

This work was financially supported by the National Basic Research Program (2012CB619101) and the National Science & Technology Supporting Program (2012BAI18B01). R.D.K. Misra gratefully acknowledges support from the Center for Structural and Functional Materials, University of Louisiana at Lafayette, USA.

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Author notes

  1. R. D. K. Misra (Professor)

    Present address: Department of Metallurgical and Materials Engineering, University of Texas at El Paso, El Paso, TX, 79968-0521, USA

Authors and Affiliations

  1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China

    Qingchuan Wang (Ph. D. Student), Yibin Ren (Associate Professor) & Ke Yang (Professor)

  2. Central Iron and Steel Research Institute, Beijing, 100081, China

    Chunfa Yao (Senior Engineer)

  3. Laboratory for Excellence in Advanced Steel Research, Center for Structural and Functional Materials, University of Louisiana at Lafayette, Lafayette, LA, 70504-4130, USA

    R. D. K. Misra (Professor)

Authors
  1. Qingchuan Wang
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  2. Yibin Ren
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  3. Chunfa Yao
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  4. Ke Yang
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  5. R. D. K. Misra
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Corresponding authors

Correspondence to Ke Yang or R. D. K. Misra.

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Manuscript submitted September 17, 2013.

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Wang, Q., Ren, Y., Yao, C. et al. Residual Ferrite and Relationship Between Composition and Microstructure in High-Nitrogen Austenitic Stainless Steels. Metall Mater Trans A 46, 5537–5545 (2015). https://doi.org/10.1007/s11661-015-3160-5

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