Effect of 1% Ce Addition on Microstructures and Mechanical Properties of As-Cast Mg-3.8Zn-2.2Ca (wt.%) Magnesium Alloy

Abstract:

In this paper, the effect of adding 1.0 wt.% Ce on the as-cast microstructure and mechanical properties of the Mg-3.8Zn-2.2Ca (wt.%) magnesium alloy were investigated. The results indicate that, after adding 1.0 wt.%Ce to the Mg-3.8Zn-2.2Ca alloy, small amounts of Mg₁₂Ce phase are formed and an obvious equiaxed trendance is observed. At the same time, the average grain size decreases from 234mm to 71mm and the morphology of some Ca₂Mg₆Zn₃ phases changes from initial coarse blocks to fine particles. In addition, adding 1.0 wt.%Ce to the Mg-3.8Zn-2.2Ca alloy also improve the tensile and creep properties of the alloy. Further investigations need to be considered in order to optimize the amounts of Ce additions and understand its effects on the tensile and creep properties and age-hardening behaviour.

• Periodical: Materials Science Forum (Volume 686)
• Pages: 80-83
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.686.80
• Online since: June 2011
• Authors: Ming Bo Yang, Cai Yuan Qin, Yi Zhu, Liang Cheng
• Keywords: Ca₂Mg₆Zn₃ Phase, Ce, Magnesium Alloy, Mg-3.8Zn-2.2Ca Alloy

References

[1] T.V. Larionova, W.W. Park and S.B. You. Scripta Mater. Vol 45(2001), p.7.

[2] P.M. Jardim, G. Solorzano and V.J.B. Sande. Mater. Sci. Eng. A Vol 381(2004), p.196.

[3] H.S. David, Q. Ma, A.E. Mark and C. Peng. Metall. Mater. Trans. A Vol 36(2005), p.1669.

[4] X. Gao, S.M. Zhu, B.C. Muddle and J. F. Nie. Scripta Mater. Vol 53(2005), p.1321.

[5] Q. Ma and A. Das. Scripta Mater. Vol 54(2006), p.881.

[6] W.L. Xiao, S.S. Jia, J. Wang and Y.M. Wu. Mater. Sci. Eng. A Vol 474 (2008), p.317.

[7] Y. Fan, G.H. Wu and C.Q. Zhai. Mater. Sci. Eng. A Vol 433 (2006), p.208.

[8] M.B. Yang, J. Shen and L. Bai. Inter. J. Minerals, Metallurgy and Mater. Vol 61(2009), p.89.