Skip to main content
SpringerLink
Log in

Grain boundary segregation of P and micro-structural changes in 12% Cr-steels

  • Published:
Microchimica Acta Aims and scope Submit manuscript

    We’re sorry, something doesn't seem to be working properly.

    Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

Abstract

Phosphorus occurs as impurity in 12% CrMoV-steels and tends to enrich at grain boundaries. The phosphorus grain boundary segregation in a laboratory cast of the steel X 20 CrMoV 12 1 with a relatively high phosphorus content (0.057% P) was studied by Auger electron spectroscopy and the segregation kinetics and equilibria were described. Using the results phosphorus segregation could be predicted and compared to measured phosphorus concentrations in long-term annealed steels. Investigations by transmission electron microscopy showed recrystallisation and an agglomeration of carbides with aging time and the occurrence of new phases (Laves-phase Fe2 Mo). All these processes lead first to an increase in toughness as established in notch-impact fracture tests for the laboratory cast, however, after long-term use a reduction in toughness is expected.

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. Kappler, L. Kopp, H. Spähn,Z. Werkstofftechnik 1979,10, 1.

    Google Scholar 

  2. G. Kalwa,VGB Kraftwerkstechnik 1980,60 (4), 305. (Discussion remark to the publication to the K. Kußmaul and D. Blind ibid).

    Google Scholar 

  3. R. Möller, H. Erhart, H. J. Grabke,Arch. Eisenhüttenwesen 1984,55 (11), 543.

    Google Scholar 

  4. H. Erhart, H. J. Grabke,Met. Sci. 1981,15, 401.

    Google Scholar 

  5. H. Hansel, H. J. Grabke,Scri. Metall. 1985,20, 1641.

    Google Scholar 

  6. J. Küpper-Feser, H. J. Grabke,Mat. Sci. Tech. 1991,7, 111–117.

    Google Scholar 

  7. H. Viefhaus, R. Möller, H. Erhart, H. J. Grabke,Scri. Metall. 1983,17, 165.

    Google Scholar 

  8. H. J. Grabke, H. Erhart, R. Möller,Mikrochim. Acta [Wien] 1983, [Suppl]10, 119.

    Google Scholar 

  9. M. Mackenbrock, H. J. Grabke,Mat. Sci. Techn, (in press).

  10. R. Möller, S. S. Brenner, H. J. Grabke,Scri. Metall. 1986,20, 587.

    Google Scholar 

  11. H. J. Grabke, R. Möller, H. Erhart, S. S. Brenner,Surf. Interface Anal. 1987,10, 202.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, D-W-4000, Düsseldorf 1, Federal Republic of Germany

    Markus Mackenbrock & Hans Jürgen Grabke

Authors
  1. Markus Mackenbrock
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Hans Jürgen Grabke
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Mackenbrock, M., Grabke, H.J. Grain boundary segregation of P and micro-structural changes in 12% Cr-steels. Mikrochim Acta 107, 245–255 (1992). https://doi.org/10.1007/BF01244478

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01244478

Key words

Search

Navigation