Skip to main content
SpringerLink
Log in

The microstructure of 706, a new Fe−Ni-base superalloy

  • Alloy Phases and Structure
  • Published:
Metallurgical Transactions Aims and scope Submit manuscript

Abstract

Alloy 706 is a precipitation-strengthened Fe−Ni-base superalloy which has been reported to have improved machining characteristics over other similar alloys. The present work was conducted to document the phase relationships of the alloy in comparison with other Fe−Ni-base alloys. The precipitated phases identified in the alloy include γ′, Ni3Cb, Ni3Ti, M23C6, and MC. A small amount of Laves phase was also detected. The effects of some composition variations on solvus relationships for γ′ and Ni3Cb/Ni3Ti are documented. Means to take advantage of the structural response of the alloy to develop desired properties are suggested. It is shown that on the basis of chemistry and microstructural response, 706 alloy can be considered to be intermediate to the well-known alloys, 718 and 901.

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. H. Moll, G. N. Maniar, and D. R. Muzyka:Met. Trans., 1971, vol. 2, pp. 2153–60.

    CAS  Google Scholar 

  2. Inconel Alloy 706: undated brochure obtained from the International Nickel Company, 1970.

  3. B. G. Koepke, R. J. Zeto, and W. E. Hensley: Res. Rept. 64-13, Rocketdyne Division of North American Aviation, Canoga Park, Calif., 1964, (Obtainable from NASA as TSP 70-10261).

  4. H. L. Eiselstein:ASTM Spec. Tech. Publ. No.369, 1965, pp. 62–79.

    Google Scholar 

  5. C. C. Clark and J. S. Iwanski:Trans. TMS-AIME, 1959, vol. 215, pp. 648–51.

    CAS  Google Scholar 

  6. H. L. Eiselstein: ASM Report C 70-9.5, 1970.

  7. D.R. Muzyka: Carpenter Technology Corporation, Reading, Pa., unpublished research, 1970.

  8. D. R. Muzyka and C. R. Whitney: Carpenter Technology Corporation, Reading, Pa., unpublished research, 1970.

  9. D. R. Muzyka and G. N. Maniar:Metals Eng. Quart., ASM, 1969, vol. 9, pp. 23–37.

    CAS  Google Scholar 

  10. C. R. Whitney, D. R. Muzyka, and G. N. Maniar: Carpenter Technology Corporation, Reading, Pa. and G. Krauss: Lehigh University, Bethlehem, Pa., unpublished research, 1970.

  11. H. J. Wagner and A. M. Hall: DMIC Report 217. Battelle Memorial Institute, Columbus, Ohio, June 1, 1965.

    Google Scholar 

  12. P. S. Kotval:Trans. TMS-AIME, 1968, vol. 242, pp. 1764–65.

    CAS  Google Scholar 

  13. A. Kaufman and S. Niedzwiedz:Scripta Met., 1969, vol. 3, pp. 655–58.

    Article  CAS  Google Scholar 

  14. D. F. Paulonis, J. M. Oblak, and D. S. Duvall:Trans. ASM, 1969, vol. 62, pp. 611–22.

    CAS  Google Scholar 

  15. J. P. Stroup and R. A. Heacox:J. Metals, November, 1969, vol. 21, pp. 46–54.

    CAS  Google Scholar 

  16. J. F. Barker, E. W. Ross, and J. F. Radavich:J. Metals, January, 1970, vol. 22, pp. 31–41.

    CAS  Google Scholar 

  17. C. P. Sullivan and M. J. Donachie, Jr.: Pratt & Whitney Aircraft, East Hartford, Conn., unpublished research, 1970.

Download references

Author information

Authors and Affiliations

  1. Colt Industries, Crucible Materials Research Center, Pittsburgh, Pa.

    John H. Moll

  2. Research and Development Center, Carpenter Technology Corporation, Reading, Pa.

    Gunvant N. Maniar & Donald R. Muzyka

Authors
  1. John H. Moll
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Gunvant N. Maniar
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Donald R. Muzyka
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

J. H. MOLL, formerly with Carpenter Technology Corporation, Research and Development Center

Rights and permissions

Reprints and permissions

About this article

Cite this article

Moll, J.H., Maniar, G.N. & Muzyka, D.R. The microstructure of 706, a new Fe−Ni-base superalloy. Metall Trans 2, 2143–2151 (1971). https://doi.org/10.1007/BF02917543

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02917543

Keywords

Search

Navigation