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Designing primary phase-embedded Cu-based bulk metallic glass composites: a computational thermodynamic approach

机译：设计初级相嵌入铜基块状金属玻璃复合材料：一种计算热力学方法

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摘要

In this paper, a computational thermodynamic approach was used to design the compositions of bulk metallic glass composites. This approach indicates that both the liquidus temperature and the solidification temperature range of the primary phase of a Cu-Zr-Ti-Si alloy system increase with the addition of silicon. With the aid of the calculation, the crystal-embedded Cu-based bulk metallic glass composites have been fabricated successfully. The as-cast composites were characterized by X-ray diffraction and energy dispersive spectroscopy. The characterizations demonstrate that the increase of in the liquidus temperature and the extension of the primary phase region facilitate the formation of primary phase-embedded composite structures. This work suggests that the computational thermodynamics approach can be serve as a potential tool to construct bulk metallic glass composites, especially to fabricate the primary phases-embedded bulk metallic glass composites. The findings of this work can be utilized to understand the formation of composite structures of bulk metallic glass composites.
机译：在本文中，使用计算热力学方法来设计块状金属玻璃复合材料的成分。这种方法表明，Cu-Zr-Ti-Si合金系统的初相的液相线温度和凝固温度范围都随硅的添加而增加。借助于计算，已经成功地制造了嵌入晶体的Cu基块状金属玻璃复合材料。通过X射线衍射和能量色散光谱对铸态复合材料进行表征。这些特征表明，液相线温度的升高和初级相区域的扩展促进了初级相嵌入复合结构的形成。这项工作表明，计算热力学方法可以用作构建块状金属玻璃复合材料的潜在工具，尤其是制造嵌入第一相的块状金属玻璃复合材料。这项工作的发现可以用来理解块状金属玻璃复合材料的复合结构的形成。

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