Skip to main content
SpringerLink
Log in

Phase chemistry and precipitation reactions in maraging steels: Part III. Model alloys

  • Published:
Metallurgical Transactions A Aims and scope Submit manuscript

Abstract

This article describes studies of phase transformations during aging in a variety of model maraging steels. Atom-probe field-ion microscopy (APFIM) was the main research technique employed. Thermochemical calculation was also used during the course of the work. The composition and morphology of precipitates were compared in several maraging systems aged at different temperatures for different times to investigate the aging sequence. The APFIM results are compared with studies by other workers using different experimental techniques. In Fe-Ni(-Co)-Mo model alloys, ω phase and Fe7Mo6 μ phase have been found to contribute to age hardening at different stages of aging; no evidence was found for the existence of Mo-rich clusters in the as-quenched Fe-Ni-Co-Mo alloy. In a high-Si Cr-containing steel, Ti6Si7Ni16 G phase and Ni3Ti have been found to contribute to age hardening; reverted austenite was found after aging for 5 hours at 520 °C. In a Mn-containing steel, Fe2Mo Laves phase and a structurally uncertain phase with a composition of Fe45Mn32Co5Mo19 have been found to contribute to age hardening.

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

Access this article

Log in via an institution

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

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. W. Sha, A. Cerezo, and G.D.W. Smith:Metall. Trans. A, 1993, vol. 24A, pp. 1221–32.

    Article  CAS  Google Scholar 

  2. C. Servant, P. Lacombe, and M. Griveau:J. Mater. Sci., 1980, vol. 15, pp. 859–70.

    Article  CAS  Google Scholar 

  3. C. Servant, N. Bouzid, and O. Lyon:Phil. Mag. A, 1987, vol. A56, pp. 565–82.

    Article  Google Scholar 

  4. C. Servant, G. Maeder, and G. Cizeron:Metall. Trans. A, 1975, vol. 6A, pp. 981–90.

    Article  CAS  Google Scholar 

  5. N. Bouzid, C. Servant, and O. Lyon:Phil. Mag. B, 1988, vol. 57, pp. 343–59.

    Article  CAS  Google Scholar 

  6. C. Servant and N. Bouzid:Phil. Mag. B, 1989, vol. 60, pp. 659–87.

    Article  CAS  Google Scholar 

  7. J.B. Lecomte, C. Servant, and G. Cizeron:J. Mater. Sci., 1985, vol. 20, pp. 3339–52.

    Article  CAS  Google Scholar 

  8. Metals Handbook, 10th ed., ASM, Materials Park, OH, 1990, vol. 2, p. 606.

  9. Metals Handbook, 9th ed. ASM, Metals Park, OH, 1988, vol. 9, pp. 13, 461, and 474.

  10. A. Gemperle, J. Gemperlová, J. Sevely, and Y. Kihn: inProc. 7th Symp. of Metallography, Vysoké Tatry, CSVTS, Kosice, Czechoslovakia, 1989, p. 525.

    Google Scholar 

  11. H.J. Beattie, Jr. and W.C. Hagel:J. Met., 1957, vol. 209, pp. 911–17.

    Google Scholar 

  12. P. Villars and L.D. Calvert:Pearson’s Handbook of Crystallographic Data for Intermetallic Phases, ASM, Metals Park, OH, 1985, vol. 3, p. 2891.

    Google Scholar 

  13. E.J. Hladishevskii, Yu.B. Krypiakevich, Yu.B. Kuzma, and M.Yu. Teslyuk:Kristallographia, 1961, vol. 6, p. 769.

    Google Scholar 

  14. F.X. Spiegel, B. Bardos, and P.A. Beck:Trans. AIME, 1963, vol. 227, pp. 575–99.

    CAS  Google Scholar 

  15. M.K. Miller, J. Bentley, S.S. Brenner, and J.A. Spitznagel:J. Phys. Colloq., 1984, vol. 45-C9, pp. 385–90.

    Google Scholar 

  16. M. Vrinat, R. Cozar, and Y. Meyzaud:Scripta Metall., 1986, vol. 20, pp. 1101–06.

    Article  CAS  Google Scholar 

  17. R.C. Ecob, R.C. Lobb, and V.L. Kohler:J. Mater. Sci., 1987, vol. 22, pp. 2867–80.

    Article  CAS  Google Scholar 

  18. C. Servant and N. Bouzid:Acta Metall., 1988, vol. 36, pp. 2771–78.

    Article  CAS  Google Scholar 

  19. N. Bouzid: Thése de Doctorat en Sciences, Université de Paris- Sud, Paris, 1987.

    Google Scholar 

  20. W. Sha: D.Phil. Thesis, University of Oxford, Oxford, United Kingdom, 1991.

    Google Scholar 

  21. W. Sha, A. Cerezo, and G.D.W. Smith:Metall. Trans. A, 1993, vol. 24A, pp. 1233–39.

    Article  CAS  Google Scholar 

  22. W. Sha, A. Cerezo, and G.D.W. Smith:Scripta Metall. Mater., 1992, vol. 26, pp. 523–28.

    Article  CAS  Google Scholar 

  23. C. Servant: Institut de Sciences des Matériaux, Université Paris- Sud, Paris private discussion, 1991.

  24. B. Sundman, B. Jansson, and J.-O. Andersson:CALPHAD, 1985, vol. 9, p. 150.

    Article  Google Scholar 

  25. A. Gemperle: Institute of Physics, Czechoslovak Academy of Sciences, Prague, Czechoslavakia, private communication, 1990.

  26. A. Gemperle, J. Gemperlová, W. Sha, and G.D.W. Smith:Mater. Sci. Technol., 1992, vol. 8, pp. 546–54.

    Article  CAS  Google Scholar 

  27. W. Sha, A. Cerezo, and G.D.W. Smith:Metall. Trans. A, 1993, vol. 24A, pp. 1251–56.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Materials Science and Metallurgy, Cambridge University, CB23QZ, Cambridge, UK

    W. Sha

  2. Department of Materials, University of Oxford, OX1 3PH, Oxford, UK

    A. Cerezo (Royal Society Research Fellow) & G. D. W. Smith (University Lecturer)

Authors
  1. W. Sha
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. A. Cerezo
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. D. W. Smith
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Formerly Graduate Student with the Department of Materials, Oxford University.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sha, W., Cerezo, A. & Smith, G.D.W. Phase chemistry and precipitation reactions in maraging steels: Part III. Model alloys. Metall Trans A 24, 1241–1249 (1993). https://doi.org/10.1007/BF02668192

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02668192

Keywords

Search

Navigation