Microstructure and Mechanical Properties of Mg-1Mn-0.6Ce Alloy Containing Yttrium

Abstract:

Mg_-1Mn_-0.6Ce_-xY (x=0, 1, 2 and 3, mass fraction, %) magnesium alloys were prepared by casting method. And the influences of yttrium on microstructure and mechanical properties of the Mg_-1Mn_-0.6Ce magnesium alloy were investigated. The results reveal that the addition of yttrium to the Mg_-1Mn_-0.6Ce alloy could reduce the grain size of the as-cast alloys and improve mechanical properties during the investigated temperature range. The Mg_-1Mn_-0.6Ce_-1Y alloy exhibits maximum ultimate strength, yield strength, elongation and the values are 152 MPa, 72 MPa and 13.4% and enhanced about 23.1%, 63.6% and 38.1% compared with those of Mg_-1Mn_-0.6Ce alloy at room temperature, respectively. The improvement of mechanical properties are attributed to the grain refinement and the precipitation strengthening generated by the Mg₁₂Ce phase particles and the fine Mg₂₄Y₅ precipitations.

• Periodical: Advanced Materials Research (Volumes 391-392)
• Pages: 638-641
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.391-392.638
• Online since: December 2011
• Authors: G.H. Su, Y. Sun, Zhan Yi Cao
• Keywords: Magnesium Alloy, Mechanical Property, Microstructure, Yttrium

References

[1] L. B. Mordike, T. Ebert: Mater. Sci. and Eng. A, Vol. 302 (2001), p.37.

[2] Q.M. Peng, J.L. Wang, and Y.M. Wu et al: Mater. Sci. and Eng. A, Vol. 433 (2006), p.133.

[3] Q.M. Peng, Y.M. Wu and D.Q. Fang et al: J. of Alloys and Comp., Vol. 430 (2007), p.252.

[4] H.H. Zou, X. Q Zeng, and C.Q. Zhai et al: Mater. Sci. and Eng. A, Vol. 402 (2005), p.142.

[5] J.H. Zhang, D. P Zhang, and Z. Tian et al: Mater. Sci. and Eng. A, Vol. 489 (2008), p.113.

[6] M. Socjusz-Podosek, L. Litynska, Mater. Chem. Phys. Vol. 80 (2003), p.472.

[7] W.Z. Liang, Z.L. Ning, H.B. Wang, H.D. Liu, H.H. Liu, J. Rare. Earth Vol. 22 (2004), p.268.