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首页> 外文期刊>Metallurgical and Materials Transactions B >The Electrochemical Co-reduction of Mg-Al-Y Alloys in the LiCl-NaCl-MgCl2-AlF3-YCl3 Melts
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The Electrochemical Co-reduction of Mg-Al-Y Alloys in the LiCl-NaCl-MgCl2-AlF3-YCl3 Melts

机译：LiCl-NaCl-MgCl2-AlF3-YCl3熔体中Mg-Al-Y合金的电化学共还原

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摘要

The electrochemical formation of Mg-Al-Y alloys was studied in the LiCl-NaCl-MgCl2 melts by the addition of AlF3 and YCl3 on a molybdenum electrode at 973 K (700 °C). In order to reduce the volatilization of salt solvent in the electrolysis process, the volatile loss of LiCl-NaCl-MgCl2 and LiCl-KCl-MgCl2 melts was first measured in the temperature range from 873 K to 1023 K (600 °C to 750 °C). Then, the electrochemical behaviors of Mg(II), Al(III), Y(III) ions and alloy formation processes were investigated by cyclic voltammetry, chronopotentiometry, and open circuit chronopotentiometry. The cyclic voltammograms indicate that the under-potential deposition of magnesium and yttrium on pre-deposited Al leads to formation of Mg-Al and Al-Y intermetallic compounds. The Mg-Al-Y alloys were prepared by galvanostatic electrolysis in the LiCl-NaCl-MgCl2-AlF3-YCl3 melts and characterized by X-ray diffraction and scanning electron microscopy with energy dispersive spectrometry. Composition of the alloys was analyzed by inductively coupled plasma-atomic emission spectrometer, and current efficiency was also determined by the alloy composition.
机译：通过在973 K（700°C）的钼电极上添加AlF3和YCl3在LiCl-NaCl-MgCl2熔体中研究了Mg-Al-Y合金的电化学形成。为了减少电解过程中盐溶剂的挥发，首先在873 K至1023 K（600°C至750°C）的温度范围内测量LiCl-NaCl-MgCl2和LiCl-KCl-MgCl2熔体的挥发损失C）。然后，通过循环伏安法，计时电位法和开路计时电位法研究了Mg（II），Al（III），Y（III）离子的电化学行为和合金形成过程。循环伏安图表明，镁和钇在预沉积的Al上的欠电位沉积导致形成Mg-Al和Al-Y金属间化合物。 Mg-Al-Y合金是在LiCl-NaCl-MgCl2-AlF3-YCl3熔体中通过恒流电解法制备的，并通过X射线衍射和能量色散扫描电子显微镜进行表征。通过电感耦合等离子体原子发射光谱仪分析合金的组成，并且还通过合金组成确定电流效率。

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  • 来源
    《Metallurgical and Materials Transactions B》 |2015年第2期|644-652|共9页
  • 作者

    Mei Li; Yaochen Liu; Wei Han; Shanshan Wang; Milin Zhang; Yongde Yan; Weiqun Shi;

  • 作者单位

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Superlight Materials and Surface Technology Ministry of Education College of Material Science and Chemical Engineering Harbin Engineering University">(1);

    Key Laboratory of Nuclear Radiation and Nuclear Energy Technology Institute of High Energy Physics Chinese Academy of Sciences">(2);

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