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<p>The phase equilibria in the V-rich region of the V-Si-B system, including the V<sub>8</sub>SiB<sub>4</sub> phase, have been experimentally investigated. Eleven alloys with key compositions were produced by arc-melting or levitation-melting. The samples were then annealed at 1400&#xa0;°C for 100/200/300&#xa0;h under high vacuum condition. The as-cast and heat-treated alloys were investigated by scanning electron microscopy, electron backscatter diffraction, energy-dispersive x-ray spectroscopy and x-ray diffraction. The isothermal section at 1400&#xa0;°C of the V-rich V-Si-B system was determined and compared with the one at 1600&#xa0;°C. The determined isothermal section can be applied to the design of V-Si-B alloys.</p>

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Phase Equilibria in the V-Rich Region of the V-Si-B System at 1400 °C

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年2月12日

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  • Weiguang Yang,
  • Georg Hasemann,
  • Mustafa Carrion Saldaña,
  • Bronislava Gorr,
  • Ruth Schwaiger,
  • Manja Krüger

摘要

The phase equilibria in the V-rich region of the V-Si-B system, including the V8SiB4 phase, have been experimentally investigated. Eleven alloys with key compositions were produced by arc-melting or levitation-melting. The samples were then annealed at 1400 °C for 100/200/300 h under high vacuum condition. The as-cast and heat-treated alloys were investigated by scanning electron microscopy, electron backscatter diffraction, energy-dispersive x-ray spectroscopy and x-ray diffraction. The isothermal section at 1400 °C of the V-rich V-Si-B system was determined and compared with the one at 1600 °C. The determined isothermal section can be applied to the design of V-Si-B alloys.