Interactions of Shear Bands in a Ductile Metallic Glass

被引：10

作者：

Huo, Li-shan ^{[1
,2
]}

Wang, Jun-qiang ^{[1
,2
]}

Huo, Jun-tao ^{[1
,2
]}

Zhao, Yuan-yun ^{[1
,2
]}

Men, He ^{[1
,2
]}

Chang, Chun-tao ^{[1
,2
]}

Wang, Xin-min ^{[1
,2
]}

Li, Run-wei ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Zhejiang, Peoples R China

来源：

JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2016年 / 23卷 / 01期

基金：

中国博士后科学基金;

关键词：

bulk metallic glass; shear band; interaction; plasticity; serration; MACROSCOPIC TENSILE PLASTICITY; AMORPHOUS-ALLOYS; SERRATED FLOW; DEFORMATION; PROPAGATION; STRESS; TEMPERATURE;

D O I：

10.1016/S1006-706X(16)30010-3

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Shear bands play a key role in the plastic deformation of metallic glasses (MGs). Even though there are extensive studies on the initiation and propagation of shear bands, the interactions among them have not been systematically studied yet. The interactions between the primary shear bands (PSBs) and secondary shear bands (SSBs) in a ductile Zr-based MG were studied. The residual stress near PSBs can deflect the propagation direction and reduce the propagation velocity of SSBs, which contributes to the plasticity and toughness of the MG. It was demonstrated that the probability and strength of the interactions between PSBs and SSBs would become strohget for MGs with larger Young's modulus and smaller shear modulus, i.e., larger Poisson's ratio. These results are valuable in understanding the plastic deformation of Mds and may be helpful in designing new MGs with desirable mechanical properties.

引用

页码：48 / 52

页数：5

共 33 条

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