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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >The effect of free volume on the deformation behaviour of a Zr-based metallic glass under nanoindentation
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The effect of free volume on the deformation behaviour of a Zr-based metallic glass under nanoindentation

机译：纳米压痕下自由体积对Zr基金属玻璃变形行为的影响

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摘要

In this paper, the deformation behaviour of Zr65Cu17.5Ni10Al7.5 metallic glasses with different amounts of free volume was investigated with nano- and micro-indentation. It was found that the plastic flow of the metallic glasses is closely related to the amount of free volume. The metallic glasses with more free volume exhibit more conspicuous serrations with a larger pop-in size during nanoindentation and more pronounced shear bands during micro- indentation. The effect of free volume on the deformation behaviour of the Zr-based metallic glasses is discussed in terms of free volume theory.
机译：本文通过纳米和微观压痕研究了不同自由体积的Zr65Cu17.5Ni10Al7.5金属玻璃的变形行为。发现金属玻璃的塑性流动与自由体积的量密切相关。具有更大自由体积的金属玻璃在纳米压痕过程中呈现出明显的锯齿状，并具有较大的弹入尺寸，而在微压痕过程中呈现出更明显的剪切带。根据自由体积理论讨论了自由体积对Zr基金属玻璃变形行为的影响。

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