Phase Equilibrium of Mg-Nd-Zn System near Mg-Nd Side at 400°C

Ming Li Huang; Xue Shen; Hong Xiao Li

doi:10.4028/www.scientific.net/MSF.873.18

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Phase Equilibrium of Mg-Nd-Zn System near Mg-Nd Side at 400°C
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HomeMaterials Science ForumMaterials Science Forum Vol. 873Phase Equilibrium of Mg-Nd-Zn System near Mg-Nd...

Phase Equilibrium of Mg-Nd-Zn System near Mg-Nd Side at 400°C

Abstract:

The equilibrium alloys closed to Mg-Nd side in the Mg-rich corner of the Mg-Zn-Nd system at 400°C have been investigated by scanning electron microscopy, electron probe microanalysis and X-ray diffraction. The binary solid solutions Mg₁₂Nd and Mg₃Nd with the solubility of Zn have been identified. The maximum solubility of Zn in Mg₁₂Nd is 4.8at%, and Mg₁₂Nd phase can be in equilibrium with Mg solid solution. However, only when the solubility range of Zn in 26at%~32.2at%, Mg₃Nd can be in two-phase equilibrium with Mg solid solution. As the results, two two-phase regions as Mg+Mg₁₂Nd and Mg+Mg₃Nd and a three-phase region as Mg+Mg₁₂Nd+Mg₃Nd in Mg-Nd-Zn ternary isothermal section at 400°C have been identified.

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Materials Science Forum (Volume 873)

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18-22

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https://doi.org/10.4028/www.scientific.net/MSF.873.18

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September 2016

Authors:

Ming Li Huang*, Xue Shen, Hong Xiao Li

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Compound, Mg-Nd System, Mg-Nd-Zn System, Phase Equilibrium

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