Flow Stress Behavior and Microstructural Evolution of a High-Alloying Al–Zn–Mg–Cu Alloy

  • Guohui Shi
  • Yong’an ZhangEmail author
  • Xiwu Li
  • Shuhui Huang
  • Zhihui Li
  • Lizhen Yan
  • Hongwei Yan
  • Hongwei Liu
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)


The flow behavior of a high-alloying Al–Zn–Mg–Cu alloy was studied by compression tests with the temperature range of 300–440 °C and the strain rates range of 0.001–1 s−1, and the corresponding microstructural evolution was observed. Results show flow stress curves exhibit the peak value at a critical strain, and the peak stress decreases with increasing of deformation temperatures. Numerous precipitated particles with a small size and high-density dislocations should be responsible for the high flow stress. Dynamic recovery is the main way of flow softening while dynamic coarsening of precipitated particles and dynamic recrystallization also play a role in flow softening under low-temperature and high-temperature conditions, respectively. The continuous dynamic recrystallization is the major mechanism for dynamic recrystallization behavior.


Al–Zn–Mg–Cu alloy Hot deformation Flow behavior Microstructural evolution 



This study was financially supported by the National Key R&D Program of China (No. 2016YFB0300803, 2016YFB0300903), the National Program on Key Basic Research Project of China (No. 2012CB619504) and National Natural Science Foundation of China (No. 51274046).


  1. 1.
    H.J. Mcqueen, Development of dynamic recrystallization theory. Mater. Sci. Eng. A 387–389, 203–208 (2004)CrossRefGoogle Scholar
  2. 2.
    T. Dursun, C. Soutis, Recent developments in advanced aircraft aluminium alloys. Mater. Des. (1980–2015) 56, 862–871 (2014)CrossRefGoogle Scholar
  3. 3.
    M. Dixit, R.S. Mishra, K.K. Sankaran, Structure–property correlations in al 7050 and al 7055 high-strength aluminum alloys. Mater. Sci. Eng. A 478(1–2), 163–172 (2008)CrossRefGoogle Scholar
  4. 4.
    H.J. Mc Queen, S. Spigarelli, M.E. Kassner, Hot Deformation and Processing of Aluminum Alloys (CRC Press, Boca Raton, 2016)Google Scholar
  5. 5.
    X. Liu, S. Han, L. Chen et al., Flow behavior and microstructural evolution of 7a85 high-strength aluminum alloy during hot deformation. Metall. Mater. Trans. A 48(5), 2336 (2017)CrossRefGoogle Scholar
  6. 6.
    C.J. Shi, J. Lai, X.G. Chen, Microstructural evolution and dynamic softening mechanisms of al-zn-mg-cu alloy during hot compressive deformation. Materials 7(1), 244 (2014)CrossRefGoogle Scholar
  7. 7.
    X.Y. Liu, Q.L. Pan, Y.B. He et al., Flow behavior and microstructural evolution of al–cu–mg–ag alloy during hot compression deformation. Mater. Sci. Eng. A 500(1–2), 150–154 (2009)CrossRefGoogle Scholar
  8. 8.
    Y. Deng, Z. Yin, J. Huang, Hot deformation behavior and microstructural evolution of homogenized 7050 aluminum alloy during compression at elevated temperature. Mater. Sci. Eng. A 528(3), 1780–1786 (2011)CrossRefGoogle Scholar
  9. 9.
    D. Feng, X.M. Zhang, S.D. Liu et al., Constitutive equation and hot deformation behavior of homogenized al–7.68zn–2.12mg–1.98cu–0.12zr alloy during compression at elevated temperature. Mater. Sci. Eng. A. 608, 63–72 (2014)CrossRefGoogle Scholar
  10. 10.
    H.J. Mc Queen, J.J. Jonas, Recent advances in hot working: fundamental dynamic softening mechanisms. 3, 233–241 (1984)Google Scholar
  11. 11.
    Z. Fei, S. Jian, Y. Xiaodong et al., Constitutive analysis to predict high-temperature flow stress in 2099 al-li alloy. Rare Metal Mat. Eng. 43(6), 1312–1318 (2014)CrossRefGoogle Scholar
  12. 12.
    Q. Yang, X. Wang, X. Li et al., Hot deformation behavior and microstructure of aa2195 alloy under plane strain compression. Mater. Charact. 131, 500 (2017)CrossRefGoogle Scholar
  13. 13.
    M. Zhou, Y.C. Lin, J. Deng et al., Hot tensile deformation behaviors and constitutive model of an al–zn–mg–cu alloy. Mater. Des. 59, 141 (2014)CrossRefGoogle Scholar
  14. 14.
    Y. Wei, B.Q. Xiong, Y.A. Zhang et al., Research on flow stress of spray formed 70si30al alloy under hot compression deformation. Rare Met. 6(25), 665 (2006)CrossRefGoogle Scholar
  15. 15.
    C. Hi, X.G. Chen, Evolution of activation energies for hot deformation of 7150 aluminum alloys with various zr and v additions. Mater. Sci. Eng. A. 650, 197–209 (2016)Google Scholar
  16. 16.
    J. Li, J. Shen, X. Yan et al., Microstructure evolution of 7050 aluminum alloy during hot deformation. T Nonferr Metal Soc. 20(2), 189–194 (2010)CrossRefGoogle Scholar
  17. 17.
    N. Jin, H. Zhang, Y. Han et al., Hot deformation behavior of 7150 aluminum alloy during compression at elevated temperature. Mater. Charact. 60(6), 530 (2009)CrossRefGoogle Scholar
  18. 18.
    C. Huang, J. Deng, S.X. Wang et al., A physical-based constitutive model to describe the strain-hardening and dynamic recovery behaviors of 5754 aluminum alloy. Mater. Sci. Eng. A 699, 106 (2017)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Guohui Shi
    • 1
  • Yong’an Zhang
    • 1
    Email author
  • Xiwu Li
    • 1
  • Shuhui Huang
    • 1
  • Zhihui Li
    • 1
  • Lizhen Yan
    • 1
  • Hongwei Yan
    • 1
  • Hongwei Liu
    • 1
  1. 1.State Key Laboratory of Nonferrous Metals and ProcessesGRINM Group Co., Ltd.BeijingChina

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