Experimental Investigation of the Mg–Zn–Zr Isothermal Section at 400 °C

  • Yong-Peng Liang
  • Shu-Hong LiuEmail author
  • Kai Xu
  • Yong Du


Mg–Zn–Zr series Mg alloys (ZK) are one of the most important commercial Mg alloys due to their good comprehensive mechanical properties. The phase equilibria of the Mg–Zn–Zr system at 400 °C covering the overall composition range were investigated by X-ray diffraction and electron probe microanalyses on thirteen ternary alloys. Three ternary compounds, τ1, τ2 and τ3, were detected to be thermodynamically stable at 400 °C, and their homogeneity range was determined to be Mg(7–17)Zn(80–88)Zr(4–6), Mg(15–22)Zn(66–68)Zr(9–16) and Mg9Zn68Zr23 (in at.%), respectively. Eight three-phase regions and four two-phase regions were observed. The maximum solubility of Mg in Zn22Zr, Zn39Zr5 and Zn3Zr phases was measured to be 0.52, 0.37 and 0.99 at.%, respectively, while the solubility of Zr in MgZn2 and Mg2Zn3 phases is negligible. The isothermal section of the Mg–Zn–Zr system at 400 °C was then constructed based on the present experimental data.


Mg–Zn–Zr Isothermal section Phase equilibria Ternary compounds 



The financial supports from the National Key Research and Development Plan (No. 2016YFB0701202) and the National Natural Science Foundation of China (Grant No. 51771235) are greatly acknowledged.


  1. [1]
    E. Aghion, B. Bronfin, Mater. Sci. Forum 350, 19 (2000)CrossRefGoogle Scholar
  2. [2]
    H. Zhou, H.Y. Ning, X.L. Ma, D.D. Yin, L.R. Xiao, X.C. Sha, Y.D. Yu, Q.D. Wang, Y.S. Li, J. Mater. Sci. Technol. 34, 1067 (2018)CrossRefGoogle Scholar
  3. [3]
    B.N. Du, Z.Y. Hu, L.Y. Sheng, D.K. Xu, Y.F. Zheng, T.F. Xi, Acta Metall. Sin. (Engl. Lett.) 31, 351 (2018)CrossRefGoogle Scholar
  4. [4]
    X.J. Wang, D.K. Xu, R.Z. Wu, X.B. Chen, Q.M. Peng, L. Jin, Y.C. Xin, Z.Q. Zhang, Y. Liu, X.H. Chen, J. Mater. Sci. Technol. 34, 245 (2018)CrossRefGoogle Scholar
  5. [5]
    J. Ninlachart, K.S. Raja, Acta Metall. Sin. (Engl. Lett.) 30, 352 (2017)CrossRefGoogle Scholar
  6. [6]
    X. Chen, L. Liu, J. Liu, F. Pan, Mater. Des. 65, 360 (2015)CrossRefGoogle Scholar
  7. [7]
    J. Hirsch, T. Al-Samman, Acta Mater. 61, 818 (2013)CrossRefGoogle Scholar
  8. [8]
    Z. Yang, J.P. Li, J.X. Zhang, G.W. Lorimer, J. Robson, Acta Metall. Sin. (Engl. Lett.) 21, 313 (2008)CrossRefGoogle Scholar
  9. [9]
    H. Somekawa, A. Singh, T. Mukai, J. Mater. Res. 22, 965 (2011)CrossRefGoogle Scholar
  10. [10]
    M. Shahzad, L. Wagner, Scr. Mater. 60, 536 (2009)CrossRefGoogle Scholar
  11. [11]
    M. Shahzad, L. Wagner, J. Alloys Compd. 486, 103 (2009)CrossRefGoogle Scholar
  12. [12]
    D.H. StJohn, M. Qian, M.A. Easton, P. Cao, Z. Hildebrand, Metall. Mater. Trans. A 36, 1669 (2005)CrossRefGoogle Scholar
  13. [13]
    A. Das, G. Liu, Z. Fan, Mater. Sci. Eng., A 419, 349 (2006)CrossRefGoogle Scholar
  14. [14]
    Y.C. Lee, A.K. Dahle, D.H. StJohn, Metall. Mater. Trans. A 31, 2895 (2000)CrossRefGoogle Scholar
  15. [15]
    Z. Hildebrand, M. Qian, D. StJohn, M. Frost, magnesium technology 2004, in: Proceedings of the Symposium held during the TMS Annual Meeting, Charlotte, 14–18 March 2004, Ed by A.A. Luo, TMS (The Minerals, Metals & Materials Society, 2004), p. 241Google Scholar
  16. [16]
    Z.H. Yu, H.G. Yan, J.H. Chen, Y.Z. Wu, J. Mater. Sci. 45, 3797 (2010)CrossRefGoogle Scholar
  17. [17]
    N.F. Lashko, G.I. Morozova, F.S. Andreeva, V.V. Tikhonova, M.A. Gerasimova, Izv. Akad. Nauk SSSR Metal 2, 159 (1969)Google Scholar
  18. [18]
    G.I. Morozova, V.V. Tikhonova, N.F. Lashko, Met. Sci. Heat Treat. 20, 657 (1978)CrossRefGoogle Scholar
  19. [19]
    K. Loehberg, G. Schmidt, Giessereiforschung 27, 75 (1975)Google Scholar
  20. [20]
    Y.P. Ren, Y. Guo, D. Chen, S. Li, W.L. Pei, G.W. Qin, Calphad 35, 411 (2011)CrossRefGoogle Scholar
  21. [21]
    X. Zhang, Y.-N. Zhang, D. Kevorkov, M. Medraj, J. Alloys Compd. 680, 212 (2016)CrossRefGoogle Scholar
  22. [22]
    R. Arroyave, Z.K. Liu, Calphad 30, 1 (2006)CrossRefGoogle Scholar

Copyright information

© The Chinese Society for Metals and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Yong-Peng Liang
    • 1
  • Shu-Hong Liu
    • 1
    Email author
  • Kai Xu
    • 1
    • 2
  • Yong Du
    • 2
  1. 1.State Key Lab of Powder MetallurgyCentral South UniversityChangshaChina
  2. 2.School of Materials Science and EngineeringCentral South UniversityChangshaChina

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