Experimental Investigation of the Phase Equilibria of the Zn-Al-Zr Ternary System at 723 K (450 °C)

被引：0
作者：
Liangping Chen
Fucheng Yin
Xuemei Ouyang
Manxiu Zhao
Zhi Li
机构：
[1] Xiangtan University,School of Materials Science and Engineering
[2] Hunan Province Xiangtan University,Key Laboratory of Materials Design and Preparation Technology
来源：
Metallurgical and Materials Transactions A | 2015年 / 46卷
关键词：
Ternary System; Isothermal Section; Diffusion Couple; Maximum Solubility; Evacuate Quartz Tube;
D O I：
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摘要：
Based on the techniques of scanning electron microscopy equipped with energy dispersive X-ray spectroscopy, X-ray powder diffraction, and Electron probe microanalysis (EPMA), the 723 K (450 °C) isothermal section of the Zn-Al-Zr ternary system has been determined using equilibrated alloy method with the aid of diffusion couple approach. The ternary compound Zn50Al25Zr25, named T phase in the present work, is confirmed to be stable at 723 K (450 °C), and it has a very large composition rang of Zn from 11.9 to 58.5 at. pct. The T phase is in equilibrium with all the binary phases except Zr3Al, Zr2Al, ZnZr, and Zn2Zr. The maximum solubility of Zn in ZrAl3, Zr2Al3, ZrAl, Zr4Al3, Zr3Al2, Zr2Al, and Zr3Al is 2.8 (measured by EDS), 1.00, 1.17, 0.82, 0.48, 0.78, and 1.52 (measured by EPMA) at. pct, respectively. The maximum solubility of Al in ZnZr, Zn2Zr, and Zn3Zr is 10.3, 3.9 and 10.44 at. pct, respectively.
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页码：4956 / 4965
页数：9
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