Complexity of shear localization in a Zr-based bulk metallic glass
Complexity of shear localization in a Zr-based bulk metallic glass
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DOI：
10.1016/j.scriptamat.2009.08.041
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发表时间：
2009-12
影响因子：
6
通讯作者：
Jing Zhang;P. Aimedieu;F. Hild;S. Roux;T. Zhang
中科院分区：
文献类型：
--
作者：
Jing Zhang;P. Aimedieu;F. Hild;S. Roux;T. Zhang
通过光学成像和红外成像，原位研究了锆基金属玻璃的压缩行为。结果表明，局域化带比简单平面更加复杂，不同滑移系之间的相互作用是理解滑移止滑的基本因素，因此这种材料所承受的极限应变是必要的。粗糙度被认为是提高最终宏观剪切应变的另一个关键特征，它既是破坏机制的原因，也是阻止机制的原因。
The compressive behaviour of a Zr-based metallic glass was studied in situ through optical and infrared imaging. Results show that localization bands are more complex than simple planes, and interactions between different slip systems are an essential ingredient to understanding slip arrest and hence the ultimate strain such materials sustain. Roughness, which is responsible for both the damage and arrest mechanisms, is argued to be another key feature that enhances the ultimate macroscopic shear strain.