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The Isothermal Section of the Fe-Si-Ti-93 at.% Zn Quaternary System at 450 °C

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Abstract

The 450 °C isothermal section of the Fe-Si-Ti-Zn quaternary system with Zn being fixed at 93 at.% was determined experimentally by means of scanning electron microscopy coupled with wave dispersive x-ray spectroscopy, and x-ray powder diffraction. Fourteen four-phase regions were confirmed experimentally in this isothermal section. The Fe-Ti-Zn ternary phase T-TiFe2Zn22 was found to be in equilibrium with the liquid, ζ-FeZn13, τ2-FeTiSi, and TiZn16 phases. The maximum solubility of Zn in τ2-FeTiSi is 2.74 at.%, but less than 1.08 at.% in τ1-FeTiSi2. Si solubility in T-TiFe2Zn22 is 0.31 at.%, but it is negligible in ζ-FeZn13. The solubility of Ti in the liquid phase is limited. The results of present work are consistent with the relevant ternary systems. No true quaternary compound was found in the isothermal section.

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Acknowledgments

This investigation was supported by National Natural Science Foundation of China (No. 51071135), the Ph. D. Programs Foundation of Ministry of Education of China (No. 20114301110005) and Scientific Research Fund of Hunan Provincial Educational Department (No. 12A128).

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Authors and Affiliations

  1. School of Mechanical Engineering, Xiangtan University, Hunan, 411105, P.R. China

    Xinming Wang, Fucheng Yin, Pengfei He, Yongxiong Liu, Zhi Li, Manxiu Zhao & Xuping Su

  2. Key Laboratory of Materials Design and Preparation Technology of Hunan Province, Xiangtan University, Hunan, 411105, P.R. China

    Xinming Wang, Fucheng Yin, Pengfei He, Yongxiong Liu, Zhi Li, Manxiu Zhao & Xuping Su

  3. School of Material Science and Engineering, Changzhou University, Jiangsu, 213164, P.R. China

    Xuping Su

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  1. Xinming Wang
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  2. Fucheng Yin
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Correspondence to Fucheng Yin.

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Wang, X., Yin, F., He, P. et al. The Isothermal Section of the Fe-Si-Ti-93 at.% Zn Quaternary System at 450 °C. J. Phase Equilib. Diffus. 35, 326–333 (2014). https://doi.org/10.1007/s11669-014-0310-1

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  • DOI: https://doi.org/10.1007/s11669-014-0310-1

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