Abstract Bulk metallic glasses (BMGs) are difficult to manufacture by conventional processes due to the superior strength and extreme brittleness of these materials. Here, we report on the manufacturing of Zr-based BMG components with complex geometries, including cubic, hollow, and lattice structures, by using a selective laser melting (SLM) 3D-printing technique. High amorphous phase fractions between 74 and 90 wt% are achieved depending on the geometries manufactured. To take advantage of complex geometries with large specific surface areas, the lattice BMG samples were selected, as an example, to be dealloyed to obtain a milli/nano hierarchical porous structure, which exhibits excellent catalytic properties towards degradation of methyl orange, showing a promising potential for functional applications.

中文翻译：

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具有复杂几何形状和增强催化性能的 Zr 基块状金属玻璃的 3D 打印

摘要 块状金属玻璃（BMGs）由于强度高且脆性大，难以通过传统工艺制造。在这里，我们报告了通过使用选择性激光熔化 (SLM) 3D 打印技术制造具有复杂几何形状（包括立方体、空心和晶格结构）的 Zr 基 BMG 部件。根据制造的几何形状，可实现 74 至 90 重量％的高非晶相分数。为了利用具有大比表面积的复杂几何形状，例如选择晶格 BMG 样品进行脱合金以获得毫/纳米分级多孔结构，该结构对甲基橙的降解表现出优异的催化性能，显示出有希望的功能应用的潜力。