Atomistic investigation of mechanical properties of metallic glass nanocomposites
Atomistic investigation of mechanical properties of metallic glass nanocomposites
复制标题
金属玻璃纳米复合材料机械性能的原子研究
DOI:
10.1088/1361-651x/abbd2c
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发表时间:
2020-10
影响因子:
1.8
通讯作者:
CHANG QING CHEN
中科院分区:
文献类型:
--
作者:
Xiaoling Zhou;Longqi Wang;CHANG QING CHEN
In this paper, tensile deformation of metallic glass (MG) nanocomposites which consist of cellular MG matrix and columnar grains are studied by the molecular dynamic simulations. The size effects of the ligament thickness and the grain size on the yield strength and plasticity are elucidated. It is found that the ratio of the grain size to the ligament thickness (d/s) has a great influence on the plastic deformation. Two typical deformation mechanisms are further investigated. In the composite models with large d/s, grain boundaries motion and voids formation are the main mechanisms. When d/s decreases to 6, the grains can not only promote multiple shear bands formation but also impede the main shear band propagation. As a result, large plastic plateau appears in the stress–strain curve. These results are helpful to optimize the mechanical properties of MG composites.
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影响因子:
6
作者:
Z. Y. Zhang;Yuan Wu;J. Zhou;H. Wang;Xiongjun Liu;Zhenwen Lu
通讯作者:
Z. Y. Zhang;Yuan Wu;J. Zhou;H. Wang;Xiongjun Liu;Zhenwen Lu
影响因子:
5.3
作者:
Zhou Xiaoling;Zhou Haofei;Li Xiaoyan;Chen Changqing
通讯作者:
Chen Changqing
影响因子:
6
作者:
Guo, S. F.;Liu, L.;Li, Y.
通讯作者:
Li, Y.
影响因子:
9.8
作者:
Haofei Zhou;S. Qu;Wei Yang
通讯作者:
Haofei Zhou;S. Qu;Wei Yang
DOI:
10.1155/2013/517904
发表时间:
2013-01
期刊:
Journal: Materials
影响因子:
--
作者:
D. Hofmann
通讯作者:
D. Hofmann