Skip to main content
SpringerLink
Log in

Enhanced ductility in coarse-grained Al-Mg alloys

  • Published:
Metallurgical and Materials Transactions A Aims and scope Submit manuscript

Abstract

Enhanced ductilities,i.e., values of tensile ductility exceeding those normally expected in metallic alloys, have been observed at warm temperatures in coarse-grained Al-Mg alloys which exhibit viscous-glide controlled creep. Numerous tests have been conducted in order to quantify this phe-nomenon over wide ranges of temperature and magnesium concentration. The contributions of strain-rate sensitivity and strain hardening have been analyzed in relation to the observed tensile ductilities. It is shown that an analysis based only on flow instability in tension cannot be used to predict failure in a unique manner.

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. L. Ivanchev and D. Chavdarova: [S. Blecic, ed.,]Proc. Int. Symp. on Plasticity and Resistance to Metal Deformation, Titograd, Yugoslavia, 1986, pp. 348–61.

    Google Scholar 

  2. R.A. Ayres:Metall. Trans. A, 1979, vol. 10A, pp. 849–54.

    CAS  Google Scholar 

  3. R.A. Ayres and M.L. Wenner:Metall. Trans. A, 1979, vol. 10A, pp. 41–46.

    CAS  Google Scholar 

  4. F.A. Mohamed:Scripta Metall, 1978, vol. 12, pp. 99–102.

    Article  CAS  Google Scholar 

  5. M.S. Mostafa and F.A. Mohamed:Metall. Trans., 1986, vol. 17A, pp. 365–66.

    CAS  Google Scholar 

  6. A.A. Tavassoli, S.E. Razavi, and N.M. Fallah:Metall. Trans. A, 1975, vol. 6A, pp. 591–94.

    CAS  Google Scholar 

  7. J. Wang, Z. Horita, M. Furukawa, M. Nemoto, N.K. Tsenev, R.Z. Valiev, Y. Ma, and T.G. Langdon:J. Mater. Res., 1993, vol. 8, pp. 2810–18.

    CAS  Google Scholar 

  8. S.J. Hales, T.R. McNelley, and H.J. McQueen:Metall. Trans. A, 1991, vol. 22A, pp. 1037–47.

    CAS  Google Scholar 

  9. H.J. McQueen and M.E. Kassner: inSuperplasticity in Aerospace, H.C. Heikkenen and T.R. McNelley, eds., TMS, Warrendale, PA, 1988, pp. 77–96.

    Google Scholar 

  10. H.J. McQueen and M.E. Kassner: inSuperplasticity in Aerospace II, T.R. McNelley and H.C. Heikkenen, eds., TMS, Warrendale, PA, 1990, pp. 189–206.

    Google Scholar 

  11. O.D. Sherby and P.M. Burke:Progr. Mater. Sci., 1969, vol. 13, pp. 325–90.

    Google Scholar 

  12. D.A. Woodford:Trans. ASM, 1969, vol. 62, pp. 291–293.

    CAS  Google Scholar 

  13. E.W. Hart:Acta Metall., 1967, vol. 15, pp. 351–55.

    Article  CAS  Google Scholar 

  14. A.K. Ghosh:Acta Metall., 1977, vol. 25, pp. 1413–24.

    Article  Google Scholar 

  15. F.A. Nichols:Acta Metall., 1980, vol. 28, pp. 663–73.

    Article  CAS  Google Scholar 

  16. M.A. Burke and W.D. Nix:Acta Metall., 1975, vol. 23, pp. 793–98.

    Article  CAS  Google Scholar 

  17. J.W. Hutchinson and H. Obrecht:Fracture 1977, 1977, vol. 1, pp. 101–16.

    Google Scholar 

  18. C.H. Hamilton: NATO/AGARD Lecture Series No. 154, inSuperplasticity: NATO/AGARD Lecture Series No. 154, Springfield, VA, 1989, National Technical Information Services, repeated as NATO/AGARD Lecture Series No. 168.

  19. T.R. McNelley, D.J. Michel, and A. Salama:Scripta Metall, 1989, vol. 23, pp. 1657–62.

    Article  CAS  Google Scholar 

  20. R.W. Lund and W.D. Nix:Acta Metall, 1976, vol. 24, pp. 469–81.

    Article  CAS  Google Scholar 

  21. L.A. Willey:Metals Handbook, 8th ed., ASM, Metals Park, OH, 1973, vol. 8.

    Google Scholar 

  22. J.L. Murray:ASM Handbook, 10th ed., ASM INTERNATIONAL, Metals Park, OH, 1992, vol. 3.

    Google Scholar 

  23. B. Ash and C.H. Hamilton: inSuperplasticity and Superplastic Forming, C.H. Hamilton and N.E. Paton, eds., TMS, Warrendale, PA, 1988, pp. 234–44.

    Google Scholar 

  24. K. Higashi, H. Inamura, T. Ito, and S. Tanimura: Department of Mechanical Systems Engineering, College of Engineering, University of Osaka Prefecture, Sakai, Osaka, Japan, unpublished research, 1993.

  25. R.E. Goforth and M.N. Srinivasan:J. Test. Eval., 1993, vol. 21, pp. 36–43.

    Article  CAS  Google Scholar 

  26. C.H. Cáceres and D.S. Wilkinson:Acta Metall, 1984, vol. 33, pp. 415–22.

    Google Scholar 

  27. AJ. Barnes (Superform USA, Inc., Riverside, CA): private communication to O.D. Sherby, May 3, 1994.

  28. J. Wadsworth, C.A. Roberts, and E.H. Rennhack:J. Mater. Sci., 1982, vol. 17, pp. 2539–46.

    Article  Google Scholar 

  29. J. Wadsworth, S.E. Dougherty, P.A. Kramer, and T.G. Nieh:Scripta Metall. 1992, vol. 27, pp. 71–76.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Aerospace Engineering and Engineering Mechanics, The University of Texas at Austin, 78712-1085, Austin, TX

    Eric M. Taleff (Assistant Professor)

  2. Manufacturing and Materials Engineering Division, Lawrence Livermore National Laboratory, 94550, Livermore, CA

    Donald R. Lesuer (Group Leader/Materials Engineer)

  3. Chemistry and Materials Science Directorate, Lawrence Livermore National Laboratory, 94550, Livermore, CA

    Jeffrey Wadsworth (Associate Director)

Authors
  1. Eric M. Taleff
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Donald R. Lesuer
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Jeffrey Wadsworth
    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

Taleff, E.M., Lesuer, D.R. & Wadsworth, J. Enhanced ductility in coarse-grained Al-Mg alloys. Metall Mater Trans A 27, 343–352 (1996). https://doi.org/10.1007/BF02648411

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02648411

Keywords

Search

Navigation