Heat Resistance of Mg-Nd Based Casting Alloys Containing Gadolinium and Yttrium


Article Preview

Influences of Gd or Y addition on microstructures and tensile properties at room and elevated temperatures were investigated for T6-treated Mg-3%Nd-0.5%Zn-0.4%Zr casting alloys, on the basis of experimental results from X-ray diffractometry, scanning electron microscopy, transmission electron microscopy, energy dispersive spectroscopy, tensile and creep tests. Microstructures of the T6-treated alloys are characterized by recrystallized α-(Mg) grains containing various nano-sized precipitates such as Mg41Nd5, Zn2Zr3 and Zr particles. In T6 condition, most of added Gd and Y elements are dissolved in Mg41Nd5 precipitates rather than formation of new phases. Tensile properties and creep resistance of the Mg-3%Nd-0.5%Zn-0.4%Zr alloy are remarkably increased by the addition of Gd or Y, but their efficiencies are substantially the same.



Advanced Materials Research (Volumes 26-28)

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee




J. H. Jun et al., "Heat Resistance of Mg-Nd Based Casting Alloys Containing Gadolinium and Yttrium", Advanced Materials Research, Vols. 26-28, pp. 137-140, 2007

Online since:

October 2007




[1] Z. Yang, J.P. Li, Y.C. Guo, T. Liu, F. Xia, Z.W. Zeng and M.X. Liang: Mater. Sci. Eng. A Vols. 454-455 (2007), p.274.

[2] Q.M. Peng, Y.M. Wu, D.Q. Fang, J. Meng and L.M. Wang: J. Alloy Comp. Vol. 430 (2007), p.252.

[3] S.M. He, X.Q. Zeng, L.M. Peng, X. Gao, J.F. Nie and W.J. ding: J. Alloy Comp. Vol. 421 (2006), p.309.

[4] C. Antion, P. Donnadieu, F. Perrard, A. Deschamps, C. Tassin and A. Pisch: Acta Mater. Vol. 51 (2003), p.5335.

DOI: https://doi.org/10.1016/s1359-6454(03)00391-4

[5] M. Suzuki, T. Kimura, J. Koike and K. Maruyama: Scripta Mater. Vol. 48 (2003).






[1] 0.

[1] 2.

[1] 4.

[1] 6.

[1] 8 Creep test : 200o C, 150MPa MNK MNK-2Gd MNK-2Y MNK-1Gd MNK-1Y Creep strain (%) Time (sec X 10 3 ).

DOI: https://doi.org/10.1007/springerreference_100558