Dispersion strengthened superalloys by mechanical alloying

Abstract

A new process called “mechanical alloying” has been developed which produces homogeneous composite particles with an intimately dispersed, uniform internal structure. Materials formed by hot consolidation of this powder achieve the long-sought combination of dispersion strengthening and age-hardening in a high temperature alloy. While the process is amenable to making a variety of alloys, its first use has been to combine yttrium oxide and gamma prime hardening hr at 1400°F and 15,000 psi for 100 hr at 1900°F together with excellent sulfidation and cyclic oxidation resistance. From a fundamental standpoint, results show that the age-hardening dominates the low-temperature strength, dispersion strengthening dominates at high temperature, and the two are augmentative in the intermediate temperature range 1300° to 1500°F.

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

References

  1. 1.

    W. D. Coolidge;Proc. Am. Inst. Elec. Eng., 1910, p. 961.

  2. 2.

    R. Irmann;Metallurgia, 1952, vol. 49, p. 125.

    Google Scholar 

  3. 3.

    E. Gregory and N. J. Grant:AIME Trans., 1954, vol. 200, p. 247.

    Google Scholar 

  4. 4.

    F. V. Lenel, A. B. Backensto, Jr., and M. V. Rose:AIME Trans., 1957, vol. 209, p. 124.

    Google Scholar 

  5. 5.

    C. J. Leadbeater and discussion by E. Gregory: Symposium on Powder Metallurgy, 1954, Iron Steel Inst. Spec. Rept. No. 58, pp. 149–59, 357.

  6. 6.

    G. B. Alexanderet al.: U.S. Patent No. 2,972,529, Feb. 21, 1961.

  7. 7.

    F. J. Anders, Jr.: U.S. Patent No. 3, 159, 908, Dec. 8, 1964.

  8. 8.

    E. Gregory and C. G. Goetzel:Trans. TMS-AIME, 1958, vol. 212, p. 868.

    CAS  Google Scholar 

  9. 9.

    K. M. Zwilsky and N. J. Grant:Trans. TMS-AIME, 1961, vol. 221, p. 371.

    CAS  Google Scholar 

  10. 10.

    V. A. Tracey and D. K. Worn:Powder Met., 1962, no. 10, p. 34.

    Google Scholar 

  11. 11.

    R. Murphy and N. J. Grant:Powder Met., 1962, no. 10, p. 1.

    Google Scholar 

  12. 12.

    C. J. Smithells: U.S. Patent No. 2,406, 172, Aug. 20, 1946.

  13. 13.

    Dutch Patent No. 64030, Sept. 15, 1949.

  14. 14.

    J. C. Chaston:J. Inst. Metals, 1945, vol. 71, pp. 23–35.

    CAS  Google Scholar 

  15. 15.

    L. J. Bonis and N. J. Grant:Trans. TMS-AIME, 1962, vol. 224, p. 308.

    CAS  Google Scholar 

  16. 16.

    H. Spengler:Metall, 1964, vol. 18, p. 727.

    CAS  Google Scholar 

  17. 17.

    M. Adachi and N. J. Grant:Trans. TMS-AIME, 1960, vol. 218, p. 881.

    CAS  Google Scholar 

  18. 18.

    G. H. Howe:Powder Metallurgy, J. Wulff, ed., p. 530, ASM, 1942.

  19. 19.

    A. Steiner and K. L. Komarek:Trans. TMS-AIME, 1964, vol. 230, p. 786.

    CAS  Google Scholar 

  20. 20.

    H. Wadham:J. Oil Colour Chemists Assoc., 1964, p. 728.

  21. 21.

    A. Szegvari: U. S. Patent No. 2,764, 359, Sept. 25, 1956.

  22. 22.

    A. M. Gaudin:Principles of Mineral Dressing, p. 106, McGraw Hill Book Co., New York, 1939.

    Google Scholar 

  23. 23.

    F. C. Kelly:Weld. J. N. Y., 1951, vol. 30, p. 728.

    Google Scholar 

  24. 24.

    S. L. Hoyt:AIME Trans., 1930, vol. 89, p. 9, see esp. p. 25.

    Google Scholar 

  25. 25.

    G. S. Ansell and J. Weertman:Trans. TMS-AIME, 1959, vol. 215, p. 838.

    CAS  Google Scholar 

  26. 26.

    High Temperature, High Strength Nickel-Base Alloys, The International Nickel Co., Inc., New York, 1964; Note: The values for the properties of TD Nickel are given only for reference and represent an average of the numbers reported in the open literature and in manufacturers’ pamphlets for varying bar sizes of this alloy.

  27. 27.

    J. W. Schultz: The International Nickel Co., Inc., Paul D. Merica Research Laboratory, Sterling Forest, Suffern, N. Y., private communication, 1969.

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to John S. Benjamin.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Benjamin, J.S. Dispersion strengthened superalloys by mechanical alloying. MT 1, 2943–2951 (1970). https://doi.org/10.1007/BF03037835

Download citation

Keywords

  • Mechanical Alloy
  • Oxide Dispersion Strengthen
  • Dispersion Strengthen
  • Mechanical Alloy Process
  • Dispersion Strengthened Material