Effects of Temperature and Strain Rate on the High-Temperature Workability of Strip-Cast Mg-3Al-1Zn Alloy

  • B.H. Lee
  • W. Bang
  • S. Ahn
  • C.S. Lee


In this study, high-temperature workability of a strip-cast Mg-3Al-1Zn (AZ31) alloy was investigated on the basis of the processing map and microstructural analysis. To obtain the processing map, a series of isothermal compression tests was carried out up to a strain of 0.5 at temperatures of 473 to 673 K and strain rates of 0.01 to 10 s−1. It was found that the maximum efficiency indicating the optimum processing condition was obtained at 573 K and 10 s−1, and the processing instability occurred around the region of 473 K and 0.01 s−1. The possible high-temperature deformation mechanisms were also discussed in relation to initial texture development and twin formation.


AZ31 Alloy Critical Resolve Shear Stress Basal Slip Twin Formation Pyramidal Plane 
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This work was supported by a Korea Science and Engineering Foundation (KOSEF) grant funded by the Korean government (MOST) (Grant No. R0A-2003-000-10309-0).


  1. 1.
    T. Obara, H. Yoshinaga, S. Morozumi: Acta Mater., 1973, vol. 21, pp. 845–53CrossRefGoogle Scholar
  2. 2.
    S.S. Park, Y.S. Oh, D.H. Kang, N.J. Kim: Mater. Sci. Eng. A, 2007, vol. 449A, pp. 352–55Google Scholar
  3. 3.
    Y.S. Park, S.B. Lee, N.J. Kim: Mater. Trans., 2003, vol. 44, pp. 2617–24CrossRefGoogle Scholar
  4. 4.
    D. Raabe: Metall. Mater. Trans. A, 1995, vol. 26A, pp. 991–98CrossRefGoogle Scholar
  5. 5.
    C.D. Lee: Metall. Mater. Int., 2006, vol. 12, pp. 377–84CrossRefGoogle Scholar
  6. 6.
    S.R. Agnew: Magnesium Technology 2002, TMS, Seattle, WA, 2002, pp. 169–74Google Scholar
  7. 7.
    Y.N. Wang, J.C. Huang: Acta Mater., 2007, vol. 55, pp. 897–905CrossRefGoogle Scholar
  8. 8.
    Y.V.R.K. Prasad, T. Seshacharyulu: Int. Mater. Rev., 1998, vol. 43, pp. 243–58Google Scholar
  9. 9.
    H. Ziegler: Progress in Solid Mechanics, 1st ed., vol. 4, North-Holland Publishing Co., Amsterdam, 1963, pp. 91–113Google Scholar
  10. 10.
    R.E. Reed-Hill, R. Abbaschian: Physical Metallurgy Principles, 3rd ed., PWS, Boston, MA, 1994, pp. 541–47Google Scholar
  11. 11.
    M.R. Barnett, Z. Keshavarz, A.G. Beer, D. Atwell: Acta Mater., 2004, vol. 52, pp. 5093–5103CrossRefGoogle Scholar
  12. 12.
    D.W. Brown, S.R. Agnew, S.P. Abeln, W.R. Blumenthal, M.A.M. Bourke, M.C. Mataya, C.N. Tome, S.C. Vogel: Mater. Sci. Forum, 2005, vols. 495–97, pp. 1037–42Google Scholar
  13. 13.
    S.B. Yi, C.H.J. Davies, H.G. Brokmeier, R.E. Bolmaro, K.U. Kainer, J. Homeyer: Acta Mater., 2006, vol. 54, pp. 549–62CrossRefGoogle Scholar
  14. 14.
    W.J. Kim, J.B. Lee, W.Y. Kim, H.T. Jeong, H.G. Jeong: Scripta Mater., 2007, vol. 56, pp. 309–12CrossRefGoogle Scholar
  15. 15.
    Y.N. Wang, J.C. Huang: Acta Mater., 2007, vol. 55, pp. 897–905CrossRefGoogle Scholar
  16. 16.
    D.L. Yin, K.F. Zhang, G.F. Wang, W.B. Han: Mater. Sci. Eng. A, 2005, vol. 392A, pp. 320–25Google Scholar

Copyright information

© The Minerals, Metals & Materials Society and ASM International 2008

Authors and Affiliations

  1. 1.Department of Materials Science and EngineeringPohang University of Science and TechnologyPohangKorea
  2. 2.Materials and Processes Research Center, Magnesium Project TeamResearch Institute of Industrial Science and TechnologyPohangKorea

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