Skip to main content
Log in

Control of iron nitride formation by a high magnetic field

  • Materials Communication
  • Published:
Journal of Materials Research Aims and scope Submit manuscript

Abstract

The influence of high magnetic field on nitriding behavior was investigated in a mixture of NH3 and H2. It was found that high magnetic field could shift the equilibrium of nitriding reaction; this proved that the critical nitrogen potential to form γ′-Fe4N and ε-Fe3N phase was evidently enhanced compared with conventional nitriding. This research provides a new approach for a selective nitriding process.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

References

  1. T. Bell: Source Book on Nitriding(ASM, Metals Park, OH 1977) 266

    Google Scholar 

  2. W.P. Tong, N.R. Tao, Z.B. Wang, J. Lu, K. Lu: Nitriding iron at lower temperatures. Science299686 (2003)

    Article  CAS  Google Scholar 

  3. M.A.J. Somers, E.J. Mittemeijer: Layer-growth kinetics on gaseous nitriding of pure iron: Evaluation of diffusion coefficients for nitrogen in iron nitrides. Metall. Mater. Trans. A2657 (1995)

    Article  Google Scholar 

  4. H. Ferkel, M. Glatzer, Y. Estrin, R.Z. Valiev, C. Blawert, B.L. Mordike: RF plasma nitriding of severely deformed iron-based alloys. Mater. Sci. Eng., A348100 (2003)

    Article  Google Scholar 

  5. E. Lehrer: On the iron-hydrogen-ammonia equilibrium. Zeitschrift für Elektrochemie36383 (1930)

    CAS  Google Scholar 

  6. B.J. Kooi, M.A.J. Somers, E.J. Mittemeijer: An evaluation of the Fe–N phase diagram considering long-range order of N atoms in γ′-Fe4N1–xand ε-Fe2N1–z. Metall. Mater. Trans. A271063 (1996)

    Article  Google Scholar 

  7. W.P. Tong, N.R. Tao, Z.B. Wang, H.W. Zhang, J. Lu, K. Lu: The formation of ε-Fe3N phase in a nanocrystalline Fe. Scr. Mater.50647 (2004)

    Article  CAS  Google Scholar 

  8. T. Bell, B.J. Birch, V. Korotchenko, S.P. Evans: Controlled nitriding in ammonia-hydrogen mixtures, Heat Treatment’ 73: Book No. 163(The Metals Society, London, UK 1973) 51

    Google Scholar 

  9. Y. Sun, T. Bell: Computer prediction of threshold nitriding potential curves. Heat Treat. Met.2443 (1997)

    CAS  Google Scholar 

  10. H.D. Joo, S.U. Kim, N.S. Shin, Y.M. Koo: An effect of high magnetic field on phase transformation in Fe–C system. Mater. Lett.43225 (2000)

    Article  CAS  Google Scholar 

  11. R.A. Jaramillo, S.S. Babu, G.M. Ludtka, R.A. Kisner, J.B. Wilgen, G. Mackiewicz-Ludtka, D.M. Nicholson: Effect of 30 Tesla magnetic field on transformations in a novel bainitic steel. Scr. Mater.52461 (2004)

    Article  Google Scholar 

  12. Y.D. Zhang, N. Gey, C.S. He, X. Zhao, L. Zuo, C. Esling: High temperature tempering behaviors in a structural steel under high magnetic field. Acta Mater.523467 (2004)

    Article  CAS  Google Scholar 

  13. M. Hillert, M. Jarl: A thermodynamic analysis of the iron-nitrogen system. Metall. Trans. A6553 (1975)

    Article  Google Scholar 

  14. E.A. Guggenheim: Thermodynamics6th ed (North Holland, Amsterdam, The Netherlands 1977)

    Google Scholar 

  15. M. Cyrot, M. Décorps, B. Dieny: Magnétisme(Presses Universitaires de Grenoble, Grenoble, France 1999)

    Google Scholar 

  16. J. Crangle: The Magnetic Properties of Solids(Edward Arnold, London, UK 1977)

    Google Scholar 

  17. A. Leineweber, H. Jacobs, F. Huning, H. Lueken, H. Schilder, W. Kockelmann: Fe3N: Magnetic structure, magnetization and temperature dependent disorder of nitrogen. J. Alloys Compd.28879 (1999)

    Article  CAS  Google Scholar 

  18. S.K. Chen, S. Jin, G.W. Kammlott, T.H. Tiefel, D.W. Johnson Jr., E.M. Gyorgy: Synthesis and magnetic properties of Fe4N and (Fe, Ni) 4N sheets. J. Magn. Magn. Mater.11065 (1992)

    Article  CAS  Google Scholar 

  19. Y.D. Zhang, X. Zhao, N. Bozzolo, C.S. He, L. Zuo, C. Esling: Low temperature tempering of a medium carbon steel in high magnetic field. ISIJ Int.45913 (2005)

    Article  CAS  Google Scholar 

  20. W.H. Xie, D.S. Xue, F.S. Li: Local coordination influence on the magnetic properties of iron nitride. J. Phys. Condens. Matter129061 (2000)

    Article  CAS  Google Scholar 

  21. H.I. Faraoun, Y.D. Zhang, C. Esling, H. Aourag: Crystalline, electronic, and magnetic structures of θ-Fe3C, χ-Fe5C2, and η-Fe2C from first principle calculation. J. Appl. Phys.99093508 (2006)

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to W. P. Tong.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tong, W.P., Zhang, H., Sun, J. et al. Control of iron nitride formation by a high magnetic field. Journal of Materials Research 25, 2082–2085 (2010). https://doi.org/10.1557/jmr.2010.0279

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/jmr.2010.0279

Navigation