Large apparent compressive strain of metallic glasses
Large apparent compressive strain of metallic glasses
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DOI：
10.1080/09500830701413904
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发表时间：
2007-08
影响因子：
1.2
通讯作者：
K. Mondal;G. Santhosh Kumar;T. Ohkubo;K. Oishi;T. Mukai;K. Hono
中科院分区：
文献类型：
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作者：
K. Mondal;G. Santhosh Kumar;T. Ohkubo;K. Oishi;T. Mukai;K. Hono
单轴压缩试验中超过 20% 的极高塑性应变表明 Zr 基大块金属玻璃的应力-应变曲线出现拐点，这表明是由于裂纹与剪切带的机械互锁而产生的杂散效应。这种类型的应力-应变行为在文献中被误解为实际变形。机械联锁的效果通过断口分析来解释。
Very high plastic strains exceeding 20% in uniaxial compression tests, which show an inflection in the stress–strain curves of Zr-based bulk metallic glasses, are shown to be a spurious effect due to mechanical interlocking of cracks with shear bands. This type of stress–strain behaviour is misinterpreted as an actual deformation in the literature. The effect of mechanical interlocking is explained by fractographic analysis.