亚微米尺度金属玻璃的拉伸塑性

Tensile ductility of sub-micron scale metallic glass

摘要: 文章介绍了在透射电镜中原位拉伸亚微米尺度单相锆基金属玻璃的实验设计和研究进展.研究表明，金属玻璃呈现明显的样品尺寸效应，微观尺度样品不仅表现出稳定可控的形变行为，而且具有良好的拉伸塑性.小尺寸金属玻璃具有良好拉伸塑性的发现，不仅有助于深入理解金属玻璃室温形变的本质，也揭示了金属玻璃在薄膜和微器件中的潜在应用价值.
- 金属玻璃 /
- 尺寸效应 /
- 拉伸塑性 /
- 原位拉伸
Abstract: We present an in-situ tensile experiment with a transmission electron microscope on monolithic Zr-based metallic glass at the sub-micron level. It was found that stable and controllable deformation occurred in the sub-micron scale samples which thus exhibited large tensile ductility. This sample-size effect has significant implications for the application of metallic glasses in thin films and micro-devices, as well as for understanding the fundamental mechanical response of amorphous metals.
- metallic glass /
- size effect /
- tensile ductility /
- in-situ straining

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