Abstract
The 450 °C isothermal section of the Zn-Fe-Al-Sb quaternary system with Zn fixed at 93 at.% has been studied experimentally using x-ray diffraction and scanning electron microscopy coupled with energy dispersive spectroscopy. The (L + AlSb) field is in equilibrium with other phase fields in the section, except those near the 93Zn7Fe corner. The solubility of Sb in ζ, δ, T, Fe2Al5, and FeAl3 phases is very limited. The Zn-Fe-Al ternary phase T (Al6Fe8Zn86) was found to be in equilibrium with L, δ, Fe2Al5, and AlSb phase. The maximum solubilities of Zn in AlSb, Fe2Al5, and FeAl3 are 5.3, 12.3, and 6.2 at.% respectively. Zn can be dissolved in all compounds existing in the equilibrium alloys. Five four-phase regions and four three-phase regions have been confirmed experimentally.
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This investigation is supported by National Natural Science Foundation of China (No. 51371156), Scientific Research Fund of Hunan Provincial Science and Technology Department (No. 2013GK3167) and Scientific Research Foundation for doctor of Xiangtan University (No. 10QDZ13).
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Zhu, Z., Zhao, Y., Zhao, M. et al. The Zn-Rich Corner of the Zn-Fe-Al-Sb Quaternary System at 450 °C. J. Phase Equilib. Diffus. 34, 474–483 (2013). https://doi.org/10.1007/s11669-013-0263-9
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DOI: https://doi.org/10.1007/s11669-013-0263-9