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<p>Zr<sub>35</sub>Hf<sub>17.5</sub>Ti<sub>5.5</sub>Al<sub>1.5</sub>Co<sub>7.5</sub>Ni<sub>12</sub>Cu<sub>10</sub>-aluminum composites were fabricated by spark plasma sintering. The influence of sintering temperature on the structure, mechanical properties, and phase composition of the metallic glass was investigated. Phase transformations in the composite were studied using in situ synchrotron radiation diffraction. The disordered amorphous structure of the glass was preserved at a&#xa0;sintering temperature of 500 °C. An increase in the sintering temperature to 600 °C promoted the formation of HfAl<sub>3</sub> and CoZr<sub>4</sub> intermetallic compounds, resulting in an increase in hardness to 690 ± 7 <i>HV</i><sub>0.2</sub>. Thermal analysis of the sintered composite revealed four distinct stages of structural and phase transformations, characterized by the sequential formation of intermetallic phases with varying compositions.</p>

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Structure of a composite reinforced by Zr35Hf17.5Ti5.5Al12.5Co7.5Ni12Cu10 bulk metallic glass particles

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • I. E. Nasennik,
  • M. A. Esikov,
  • A. B. Yurgin,
  • N. S. Aleksandrova,
  • K. E. Kuper,
  • K. I. Emurlaev,
  • A. A. Dudareva,
  • I. A. Bataev

摘要

Zr35Hf17.5Ti5.5Al1.5Co7.5Ni12Cu10-aluminum composites were fabricated by spark plasma sintering. The influence of sintering temperature on the structure, mechanical properties, and phase composition of the metallic glass was investigated. Phase transformations in the composite were studied using in situ synchrotron radiation diffraction. The disordered amorphous structure of the glass was preserved at a sintering temperature of 500 °C. An increase in the sintering temperature to 600 °C promoted the formation of HfAl3 and CoZr4 intermetallic compounds, resulting in an increase in hardness to 690 ± 7 HV0.2. Thermal analysis of the sintered composite revealed four distinct stages of structural and phase transformations, characterized by the sequential formation of intermetallic phases with varying compositions.