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On high creep activation energies for dispersion strengthened metals

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Abstract

Creep studies on dispersion strengthened metals have often resulted in inexplicably high creep activation energies and high stress exponents. An analysis is presented which shows that the contribution of the temperature dependent elastic modulus to the apparent activation energy can be very large. Two cases are examined in which the difference between the apparent activation energy and the activation energy of self diffusion is almost entirely accounted for by the contribution of the temperature dependent elastic modulus. The modulus correction is particularly important at high temperatures and for materials with high stress exponents.

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References

  1. C. L. Meyers, J. C. Shyne, and O. D. Sherby:J. Aust. Inst. Metals, 1963, vol. 8, p. 171.

    CAS  Google Scholar 

  2. B. A. Wilcox and A. H. Clauer:Trans. TMS-AIME, 1966, vol. 236, p. 570.

    CAS  Google Scholar 

  3. B. A. Wilcox and A. H. Clauer:Metal Sci. J., 1969, vol. 3, p. 26.

    CAS  Google Scholar 

  4. A. H. Clauer and B. A. Wilcox:Metal Sci. J., 1967, vol. 1, p. 86.

    CAS  Google Scholar 

  5. S. Takahashi, K. Iida, and M. Adachi:Trans. Jap. Inst. Metals, 1965, vol. 6, p. 37.

    Google Scholar 

  6. B. A. Wilcox and A. H. Clauer:High Temperature Deformation of Dispersion Strengthened Nickel Alloys, NASA CR-72367, February 29,1968.

  7. P. Guyot and E. Ruedl:J. Mater. Sci., 1967, vol. 2, p. 221.

    Article  CAS  ADS  Google Scholar 

  8. P. Guyot:Acta Met., 1966, vol. 14, p. 955.

    Article  CAS  Google Scholar 

  9. B. A. Wilcox and A. H. Clauer:Acta Met., 1972, vol. 20, p. 743.

    Article  CAS  Google Scholar 

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

    CAS  Google Scholar 

  11. M. Malu and J. K. Tien:Acta Met., 1974, vol. 22, p. 145.

    Article  CAS  Google Scholar 

  12. O. D. Sherby:Factors Affecting the High Temperature Strength of Poly-crystalline Solids, Dept. of Materials Science and Engineering, Stanford University, DMS Report No. 61-5, May 1, 1961.

  13. O. D. Sherby:Acta Met., 1962, vol. 10, p. 135.

    Article  CAS  Google Scholar 

  14. J. E. Bird, A. K. Mukherjee, and J. E. Dorn:Quantitative Relations Between Properties and Microstructures, p. 255, Israel University Press, 1969.

  15. O. D. Sherby and P. M. Burke:Prog. Mater., Sci., 1968, vol. 13, p. 325.

    Article  Google Scholar 

  16. C.R. Barrett and W.D. Nix:Acta Met., 1965, vol. 13, p. 1247.

    Article  Google Scholar 

  17. J. Weertman:J. Appl. Phys., 1957, vol. 28, p. 362.

    Article  CAS  ADS  Google Scholar 

  18. J. Weertman:Trans. ASM, 1968, vol. 61, p. 681.

    CAS  Google Scholar 

  19. C. R. Barrett, A. J. Ardell, and O. D. Sherby:Trans. TMS-AIME, 1964, vol. 230, p. 200.

    CAS  Google Scholar 

  20. P. E. Armstrong and H. L. Brown:Trans. TMS-AIME, 1964, vol. 230, p. 962.

    CAS  Google Scholar 

  21. K. Monma, H. Suto, and H. Oikawa:J. Jap. Inst. Metals, 1964, vol. 28, p. 188.

    Google Scholar 

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Stanford University, 94305, Stanford, CA

    R. W. Lund (Graduate Student) & W. D. Nlx (Professor)

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  1. R. W. Lund
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  2. W. D. Nlx
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Lund, R.W., Nlx, W.D. On high creep activation energies for dispersion strengthened metals. Metall Trans A 6, 1329–1333 (1975). https://doi.org/10.1007/BF02641925

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