Skip to main content
SpringerLink
Log in

Preprecipitation in Al/Zn/Mg alloys studied by hardness and small-angle X-ray scattering measurements

  • Papers
  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Small-angle X-ray scattering techniques and hardness measurements have been used to study preprecipitation in two Al/Zn/Mg alloys containing the same Zn content (2.46 at. %) but different Mg contents. Changes in Guinier-Preston (G-P) zone size are observed to follow the same pattern as changes in hardness. It is also observed that a critical zone size is required for the nucleation of the intermediate precipitate,η∼'; the size being dependent on the Mg content. The role of Mg as a reversible-vacancy trap is also established.

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. I. J. Polmear,J. Inst. Metals 86 (1957–58) 113.

    Google Scholar 

  2. Idem, ibid 87 (1958–59) 24.

    Google Scholar 

  3. Idem, J. Aust. Inst. Met. 11 (1966) 246.

    Google Scholar 

  4. G. W. Lorimer andR. B. Nicholson,Acta Met. 14 (1966) 1109.

    Google Scholar 

  5. R. B. Nicholson, G. Thomas, andJ. Nutting,J. Inst. Metals 87 (1958–59) 429.

    Google Scholar 

  6. Idem, Acta Met. 8 (1960) 172.

    Google Scholar 

  7. J. D. Embury andR. B. Nicholson,ibid 13 (1965) 403.

    Google Scholar 

  8. G. Thomas, andJ. Nutting J. Inst. Metals 88 (1959–60) 81.

    Google Scholar 

  9. Y. Murakami, S. Komatsu, andK. Nagata,Men. Fac. Eng., Kyoto U., XXIX part 2 (1967) 161.

    Google Scholar 

  10. C. Panseri andT. Federighi,Acta Met. 8 (1960) 217.

    Google Scholar 

  11. Idem, ibid 11 (1964) 575.

    Google Scholar 

  12. G. Bartsch,ibid 12 (1964) 270.

    Google Scholar 

  13. V. Gerold andR. W. Gould,ibid p. 954.

    Google Scholar 

  14. R. Graf,Compt. rend. 242 (1956) 1311.

    Google Scholar 

  15. Idem, ibid 244 (1957) 337.

    Google Scholar 

  16. A. Guinier, “Solid State Physics”, Vol. 9 (Academic Press, New York, 1959).

    Google Scholar 

  17. R. W. Gould andE. A. Starke Jr, “Advances in X-ray Analysis”, Vol. 9 (Plenum Press, New York, 1966) p. 59.

    Google Scholar 

  18. M. Ipohorski andA. Bonfiglioli,J. Materials Sci. 2 (1967) 371.

    Google Scholar 

  19. L. F. Mondolfo, N. A. Gjostein, andD. W. Levinson,J. Metals 8 (1956) 378.

    Google Scholar 

  20. H. A. Holl,J. Inst. Metals 93 (1964–65) 364.

    Google Scholar 

  21. O. Kratky, I. Pilz, andP. J. Schmitz,J. Colloid and Interface Sci. 21 (1966) 24.

    Google Scholar 

  22. E. A. Starke Jr, andE. U. Lee,Matl. Res. Bull. 2 (1967) 231.

    Google Scholar 

  23. A. Guinier andG. Fournet, “Small Angle Scattering of X-rays” (Wiley, New York, 1955).

    Google Scholar 

  24. E. R. Parker andT. H. Hazlett, in “Relation of Properties to Microstructure” (Amer. Soc. Metals, Cleveland, 1954).

    Google Scholar 

  25. V. Gerold andH. Schmalzried,Z. Metalk. 49 (1958) 291.

    Google Scholar 

  26. V. Gerold andH. Haberkorn,ibid 50 (1959) 568.

    Google Scholar 

  27. A. J. Perry,Acta Met. 14 (1966) 1143.

    Google Scholar 

  28. R. Baur andV. Gerold,ibid 12 (1964) 1444.

    Google Scholar 

  29. A. Guinier, “X-ray Diffraction” (Freeman, London, 1963).

    Google Scholar 

  30. V. Gerold,Phys. Status Solidi 1 (1961) 37.

    Google Scholar 

  31. S. D. Harkness, R. W. Gould, andJ. J. Hren, to be published.

  32. B. Belboech andA. Guinier,Acta Met. 3 (1955) 370.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. School of Chemical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA

    P. Bardhan & E. A. Starke Jr

Authors
  1. P. Bardhan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. E. A. Starke Jr
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Bardhan, P., Starke, E.A. Preprecipitation in Al/Zn/Mg alloys studied by hardness and small-angle X-ray scattering measurements. J Mater Sci 3, 577–583 (1968). https://doi.org/10.1007/BF00757902

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00757902

Keywords

Search

Navigation