Understanding the correlations between Poisson's ratio and plasticity based on microscopic flow units in metallic glasses
Understanding the correlations between Poisson's ratio and plasticity based on microscopic flow units in metallic glasses
复制标题
基于金属玻璃中的微观流动单元理解泊松比与塑性之间的相关性
DOI:
10.1063/1.4869548
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发表时间:
2014-03
影响因子:
3.2
通讯作者:
Wang, W. H.
中科院分区:
文献类型:
--
作者:
Zhao, D. Q.;Ding, D. W.;Bai, H. Y.;Wang, W. H.
In metallic glasses (MGs), a clear correlation has been established between plasticity and the Poisson's ratio. Such a correlation between the two distinctive macroscopic mechanical properties is challenging to explain from a microstructure perspective. We studied the microstructural origin of the Poisson's ratio and plasticity criterion in various MGs and find a correlation between the relative concentration of flow units and Poisson's ratio: the MGs with higher concentration of flow units show a larger Poisson's ratio and better plasticity. We have explained the empirical correlation between ductility and the Poisson's ratio based on microscopic flow units in MGs.
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