Energetic criterion on the intrinsic ductility of bulk metallic glasses
Energetic criterion on the intrinsic ductility of bulk metallic glasses
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DOI：
10.1016/j.scriptamat.2009.12.042
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发表时间：
2010-04
影响因子：
6
通讯作者：
Yanhui Liu;Ke Wang;A. Inoue;T. Sakurai;Mingwei Chen
中科院分区：
文献类型：
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作者：
Yanhui Liu;Ke Wang;A. Inoue;T. Sakurai;Mingwei Chen
我们报告使用的能量标准来评估的基础上合作剪切模型和能量景观理论的玻璃合金的变形能力。剪切转变区的激活和剪切带的起始所需的势垒能量密度与大块金属玻璃的延展性有很强的相关性。这一发现将金属玻璃的延展性与剪切带的形成能力直接联系起来，并为金属玻璃的力学行为提供了有力的见解。
We report the use of an energetic criterion to assess the deformability of glassy alloys based on the cooperative shearing model and energy landscape theory. The barrier energy density necessary for the activation of shear transformation zones and the initiation of shear bands shows a strong correlation with the ductility of bulk metallic glasses. This finding directly ties the ductility of metallic glasses to the forming ability of shear bands and offers an energetic insight into the mechanical behavior of metallic glasses.