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Effect of transformation on the steady creep characteristics of Zn−Al alloys

  • Classical and Applied Physics
  • Published:
Acta Physica Academiae Scientiarum Hungaricae

Abstract

Apparent steady state creep of eutectoid and eutectic Zn−Al alloys was studied under different constant stresses ranging from 0–20 MPa near the eutectoid transformation temperatures.

The strain rate sensitivity parameterm amounted to 0.50−0.05 at the apparent maximum strain rate peaks. The energy activating the apparent steady state creep, determined in the vicinity of these peaks, amounted to (1.0±0.07) × 10−22 KJ/atom characterizing dislocation climb along the grain boundaries, thus causing boundary sliding and migration of the dissolved grains into new grains of an (Al)2 phase.

Microstructural analysis confirmed that the afore-mentioned mechanism took place during apparent steady state transformation creep.

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References

  1. F. Garofalo, Fundamentals of Creep and Creep-Rupture in Metals, Macmillan, New York, 1965.

    Google Scholar 

  2. P. Griffiths andC. Hammond, Acta. Met.,20, 935, 1972.

    Article  Google Scholar 

  3. F. A. Mohamed, M. M. I. Ahmed andT. G. Langdon, Met. Trans.,8A, 933, 1977.

    Google Scholar 

  4. M. W. Grabski, Mechanik,45, 63, 1972.

    Google Scholar 

  5. W. E. Goff, Flight International, August., 1972.

  6. W. A. Backofen, I. R. Turner andD. H. Avery, Trans. A. S. M.,57, 980, 1964.

    Google Scholar 

  7. D. A. Wood, Trans. A. S. M.,62, 29, 1969.

    Google Scholar 

  8. M. F. Ashby andR. A. Verrall, Acta Met.,21, 149, 1973.

    Article  Google Scholar 

  9. F. W. Clinard andO. D. Sherby, Trans. Met. Soc. AIME,233, 1475, 1965.

    Google Scholar 

  10. K. A. Padmanabhan, Mater. Sci. and Eng.,29, 1, 1977.

    Article  Google Scholar 

  11. L. F. Porter andP. C. Rosenthal, Acta Met.,7, 504, 1959;H. W. Hayden, R. C. Gibson, H. F. Merrick andJ. H. Prophy, Trans. ASM,60, 3, 1967.

    Article  Google Scholar 

  12. E. E. Underwood, J. Metals,14, 914, 1962.

    Google Scholar 

  13. T. H. Alden andH. W. Schadler, TAIME,242, 825, 1968.

    Google Scholar 

  14. W. Schulze andF. Sauerwald, Z. Metall-Kunde,53, 660, 1962;R. D. Garwood andA. D. Hopkins, J. Inst. Met.,81, 407, 1952/53.

    Google Scholar 

  15. R. Kamel andF. A. Bessa, J. Appl. Phys.,34, 1882, 1963.

    Article  ADS  Google Scholar 

  16. A. Ball andM. M. Hutchison, Metal Sci. J.,3, 1, 1969.

    Article  Google Scholar 

  17. D. L. Holt, TAIME,25, 242, 741, 1968.

    Google Scholar 

  18. P. Chaudhari, Acta Met.,15, 177, 1967.

    Article  Google Scholar 

  19. R. C. Coble, J. Appl. Phys.,34, 1679, 1963.

    Article  ADS  Google Scholar 

  20. E. P. Buller, V. Ramaswamy andP. R. Swan, Act Met.,12, 517, 1973.

    Google Scholar 

  21. J. E. Hillard, B. L. Averbach andM. Cohen, Acta Met.,7, 86, 1959.

    Article  Google Scholar 

  22. D. Turnbull andR. E. Hoffman, Acta Met.,2, 419, 1954.

    Article  Google Scholar 

  23. T. Frederighi, Phil Mag.,4, 502, 1959.

    Article  ADS  Google Scholar 

  24. F. N. R. Nabarro, Bristol Conference, Phys. Soc. London 1948.

  25. C. Herring, J. Appl. Phys.,21, 437, 1950.

    Article  ADS  Google Scholar 

  26. H. W. Hayden, S. Floreen andP. D. Goodell, Met. Trans.,3, 833, 1972.

    Article  Google Scholar 

  27. J. W. Edington, K. N. Melton andC. P. Cutler, Prog. Math. Sci.,21, 61, 1976.

    Article  Google Scholar 

  28. S. A. Salam, M. R. Soliman andM. R. Nagy, Proc. Math. Phys. Soc. Egypt,32, 57, 1968.

    Google Scholar 

  29. H. H. Kranzlein andE. E. Underwood, Lockheed Georgia, Co., Research Memorandum ER 9475, Marietta, Ga. Aug. 1968.

  30. E. Ulee andE. E. Underwood, Met. Trans.,1, 1399, 1970.

    Google Scholar 

  31. E. E. Underwood, K. D. Fike, H. H. Kranzlein, E. Ulee andH. J. Rack, Lookhead—Georgia Co., Annual Interim Report for contract N00014 — 67-C-0503, NR 031-723 June 30, Marietta, Ga. 1968.

  32. C. M. Packer, R. H. Johnson andO. D. Sherby, Trans. Met. Soc. AlME,242, 2485, 1968.

    Google Scholar 

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Authors and Affiliations

  1. Physics Department, Faculty of Education, Ain Shams University, Cairo, Egypt

    M. R. Nagy & M. S. Sakr

  2. Physics Department, Faculty of Science, Cairo University, Egypt

    R. Kamel

Authors
  1. M. R. Nagy
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  2. M. S. Sakr
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  3. R. Kamel
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Nagy, M.R., Sakr, M.S. & Kamel, R. Effect of transformation on the steady creep characteristics of Zn−Al alloys. Acta Physica 50, 409–418 (1981). https://doi.org/10.1007/BF03157905

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  • DOI: https://doi.org/10.1007/BF03157905

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