Skip to main content
SpringerLink
Log in

A TEM investigation of the γ/γ′ phase boundary in Pt-based superalloys

  • Research Summary
  • High-Temperature Materials
  • Published:
JOM Aims and scope Submit manuscript

Abstract

Precipitation-strengthened alloys in the system Pt-Al-Cr-Ni have been investigated by transmission-electron microscopy. Dense dislocation networks were found in an alloy with the nominal composition, in atomic percent, Pt-14Al-3Cr-4Ni after homogenization heat treatment and aging. Alloys with higher nickel content showed low overall dislocation densities and the γ/γ′ phase boundaries were almost free of dislocations. The loss of coherency in the alloy with a low nickel content is explained by high lattice misfit.

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. J.-C. Zhao and J.H. Westbrook, MRS Bulletin, 28 (9) (2003), pp. 622–627.

    CAS  Google Scholar 

  2. Y. Yamabe et al., Scripta Mat., 35 (2) (1996) pp. 211–215.

    Article  CAS  Google Scholar 

  3. R. Süss et al., Mater. Sci. Eng. A, 338 (2002), pp. 133–141.

    Article  Google Scholar 

  4. L.A. Cornish, B. Fischer, and R. Völkl, MRS Bulletin, 28 (9) (2003), pp. 632–638.

    CAS  Google Scholar 

  5. P.J. Hill et al., Mater. Sci. Eng., 329 (2002), pp. 295–304.

    Article  Google Scholar 

  6. M. Hüller et al., Met. Mat. Trans. A, in press (October 2004).

  7. M. Wenderoth et al., Met. Mat. Trans. A, in press (November 2004).

  8. R. Völkl et al., Met. Mat. Trans A, accepted (July 2004).

  9. Y. Yamabe-Mitarai et al., JOM, 56 (9) (2004), pp. 34–39.

    Article  CAS  Google Scholar 

  10. J.-C. Zhao, J. Mater. Res., 16 (2001), p. 1565.

    Article  CAS  Google Scholar 

  11. S. Vorberg et al., JOM, 56 (9) (2004), pp. 40–43.

    Article  CAS  Google Scholar 

  12. D.B. Williams and C.B. Carter, Transmission Electron Microscopy—A Textbook for Materials Science (New York: Plenum Press, 1996).

    Google Scholar 

  13. T. Link and M. Feller-Kniepmeier, Z. Metallkde, 78 (9) (1987), pp. 617–621.

    CAS  Google Scholar 

  14. A. Lasalmonie and J.L. Strudel, Phil. Mag., 32 (5) (1975), pp. 937–949.

    CAS  Google Scholar 

  15. H. Brooks, Metal Interfaces (Materials Park, OH: Am. Soc. for Metals, 1952), p. 20.

    Google Scholar 

  16. D.F. Lahrman et al., Acta Metall., 36 (5) (1988), pp. 1309–1320.

    Article  CAS  Google Scholar 

  17. M. Feller-Kniepmeier, Scripta Met. Mat., 30 (10) (1994), pp. 1275–1280.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. the University of Applied Sciences, Jena, Germany

    S. Vorberg Ph.D. (student) & B. Fischer (professor of materials science)

  2. the Metallic Materials Department, Germany

    M. Wenderoth Ph.D. (student) & U. Glatzel (professor)

  3. the University of Bayreuth, Germany

    R. Völkl (senior lecturer and senior researcher)

Authors
  1. S. Vorberg Ph.D.
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. B. Fischer
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. Wenderoth Ph.D.
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. U. Glatzel
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. R. Völkl
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

For more information, contact Stefan Vorberg, University of Applied Sciences Jena, Department of Materials Technology, Carl-Zeiss-Promenade 2, Jena D-07745, Germany; +49-3641-205-466; fax +49-3641-205-451; e-mail stefan.vorberg@fh-jena.de.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Vorberg, S., Fischer, B., Wenderoth, M. et al. A TEM investigation of the γ/γ′ phase boundary in Pt-based superalloys. JOM 57, 49–51 (2005). https://doi.org/10.1007/s11837-005-0233-8

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11837-005-0233-8

Keywords

Search

Navigation