Effects of Gadolinium on Aging Behavior and Mechanical Properties of Mg-5Y-3Nd-Zr Alloy


Article Preview

Mg-5Y-3Nd-Zr-xGd (x=0 and 4 wt.%) alloys were prepared by metal mould casting, and aging behavior, mechanical properties and fracture morphology were investigated. The result shows that after T6 treatment, the massive eutectic phase in as-cast alloys dissolved and finer Mg5RE phase precipitated dispersively in the matrix, and mechanical properties were improved simultaneously. Mg-5Y-3Nd-4Gd-Zr alloy exhibits good age hardening behavior and the peak hardness is about 20% higher than the Gd-free alloy. Gd addition can significantly improve mechanical properties of the alloy especially at the elevated temperature. The ultimate tensile strength and yield strength of Mg-5Y-3Nd-4Gd-Zr alloy at 250°C, with the value of 276 and 168 MPa, respectively, are over 20% higher than those of the Gd-free alloy. It is mainly attributed to the increase and homogeneous distribution of the fine heat-resistant Mg5RE precipitate in the matrix.



Advanced Materials Research (Volumes 295-297)

Edited by:

Pengcheng Wang, Liqun Ai, Yungang Li, Xiaoming Sang and Jinglong Bu






L. D. Wang et al., "Effects of Gadolinium on Aging Behavior and Mechanical Properties of Mg-5Y-3Nd-Zr Alloy", Advanced Materials Research, Vols. 295-297, pp. 1183-1187, 2011

Online since:

July 2011




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

[2] B. Smola, I. Stulíková, F. von Buch, B.L. Mordike, Mater. Sci. Eng. A Vol. 324 (2002) P. 113.

[3] C. Antion, P. Donnadieu, F. Perrard, et al., Acta Mater. Vol. 51 (2003) P. 5335.

[4] J. F. Nie, B. C. Muddle, Scripta Mater. Vol. 40(1999) P. 1089.

[5] J.F. Nie, B.C. Muddle, Acta Mater. Vol. 48 (2000) P. 1691.

[6] P.J. Apps, H. Karimzadeh, J.F. King, G.W. Lorimer, Scripta Mater. Vol. 48(2003) P. 1023.

[7] Q. M. Peng, Y.M. Wu, L.M. Wang, Mater. Sci. Eng. A Vol. 433 (2006) P. 133.

[8] Z. Yang*, J.P. Li, Y.C. Guo, et al., Mater. Sci. Eng. A Vol. 454-455 (2007) P. 274.

[9] Qiuming Peng, Yaoming Wu, Limin Wang, Mater. Charact. Vol. 59 (2008) P. 435.

[10] Lidong Wang, Chengyao Xing, Limin Wang, Mater. Sci. Eng. A Vol. 527 (2010) P. 1891.

[11] S.M. He, J.F. Nie, W.J. Ding, et al., J. Alloy. Compd. Vol. 427 (2007) P. 316.

[12] Qiuming Peng, Yaoming Wu,Limin Wang, J Mater. Sci. Vol. 42 (2007) P. 3908.

In order to see related information, you need to Login.