Phase equilibria in the Mg-rich corner of the Mg-Zn-La system at 350℃

稀有金属（英文版）, 2006, 25(5): 572-575.

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

2.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

3.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

4.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

5.School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China

基金项目: 国家自然科学基金(50471025)

Phase equilibria in the Mg-rich corner of the Mg-Zn-La system at 350℃

Keywords： Mg-Zn-La system

The phase equilibria in the Mg-rich corner of the Mg-Zn-La system at 350℃ have been investigated by scanning electron microscopy, X-ray diffraction, and electron probe microanalysis. It has been shown that the linear compound (Mg,Zn)17La2 existed in the Mg-Zn-La system at 350℃. The linear compound (so-called T phase) was with the C-centred orthorhombic crystal structure induced by the solution of significant quantities of the third element. The three-phase region α(Mg) + MgZn(La) + T and the two-phase region composed of the α(Mg) and the linear-compound T phase existed in the Mg-rich corner of the Mg-Zn-La system at 350℃.

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Phase equilibria in the Mg-rich corner of the Mg-Zn-La system at 350℃

参考文献