Effects of Aspect Ratio on the Shear Band Arrangements of Zr-Based Metallic Glasses

被引:0
作者
Shidong Feng
Gong Li
Pengfei Yu
Shiliang Zhang
Mingzhen Ma
Li Qi
Riping Liu
机构
[1] Yanshan University,State Key Laboratory of Metastable Materials Science and Technology
[2] The University of Tennessee,Department of Materials Science and Engineering
来源
Metallurgical and Materials Transactions A | 2015年 / 46卷
关键词
Aspect Ratio; Shear Band; Metallic Glass; Amorphous Alloy; Multiple Shear Band;
D O I
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中图分类号
学科分类号
摘要
Effects of aspect ratios of Zr-based metallic glasses on the shear band arrangements are investigated through molecular dynamics simulations and experiments. It is found that as the aspect ratio decreases, the dense multiple shear bands form, effectively depressing the formation of the penetrating shear bands, which improves plasticity and strength of metallic glass. Simulation reproduces the images of the evolution of the shear bands in metallic glass, explaining the experimental observation. It is found that as the aspect ratio decreases, shear transformation zones disperse evenly in the entire model, restraining connecting into penetrating shear bands.
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页码:1119 / 1124
页数:5
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