Dual character of stable shear banding in bulk metallic glasses

2011 ◽  
Vol 19 (7) ◽  
pp. 1005-1013 ◽  
Author(s):  
Y. Yang ◽  
J.C. Ye ◽  
J. Lu ◽  
C.T. Liu
Keyword(s):  
Metallic Glasses ◽  
Shear Banding ◽  
Bulk Metallic Glasses ◽  
Dual Character

Stability of shear banding process in bulk metallic glasses and composites

2017 ◽  
Vol 32 (13) ◽  
pp. 2560-2569 ◽  
Author(s):  
Yusheng Qin ◽  
Xiaoliang Han ◽  
Kaikai Song ◽  
Li Wang ◽  
Yun Cheng ◽  
...  
Keyword(s):  
Metallic Glasses ◽  
Shear Banding ◽  
Bulk Metallic Glasses ◽  
Image Position

Abstract

Multi-step shear banding for bulk metallic glasses at ambient and cryogenic temperatures

2012 ◽  
Vol 136 (1) ◽  
pp. 75-79 ◽  
Author(s):  
J.W. Qiao ◽  
H.L. Jia ◽  
Y. Zhang ◽  
P.K. Liaw ◽  
L.F. Li
Keyword(s):  
Metallic Glasses ◽  
Shear Banding ◽  
Bulk Metallic Glasses ◽  
Cryogenic Temperatures

scholarly journals Adiabatic shear banding instability in bulk metallic glasses

2005 ◽  
Vol 87 (14) ◽  
pp. 141916 ◽  
Author(s):  
L. H. Dai ◽  
M. Yan ◽  
L. F. Liu ◽  
Y. L. Bai
Keyword(s):  
Metallic Glasses ◽  
Shear Banding ◽  
Bulk Metallic Glasses ◽  
Adiabatic Shear ◽  
Adiabatic Shear Banding

scholarly journals Characterization of Shear Banding in La-Based Bulk Metallic Glasses through Indentation

2007 ◽  
Vol 48 (7) ◽  
pp. 1759-1764 ◽  
Author(s):  
Wei Peng ◽  
Bingchen Wei ◽  
Taihua Zhang ◽  
Yuan Liu ◽  
Lei Li
Keyword(s):  
Metallic Glasses ◽  
Shear Banding ◽  
Bulk Metallic Glasses

Spatial–Temporal evolution of shear banding in bulk metallic glasses

2021 ◽  
Vol 800 ◽  
pp. 140286
Author(s):  
Yonghui Mo ◽  
Xiaochang Tang ◽  
Lingyi Meng ◽  
Junwei Qiao ◽  
Xiaohu Yao
Keyword(s):  
Metallic Glasses ◽  
Temporal Evolution ◽  
Shear Banding ◽  
Bulk Metallic Glasses

Revelation of the effect of structural heterogeneity on microplasticity in bulk metallic-glasses

2010 ◽  
Vol 25 (3) ◽  
pp. 563-575 ◽  
Author(s):  
Yong Yang ◽  
Jianchao Ye ◽  
Jian Lu ◽  
Qing Wang ◽  
Peter K. Liaw
Keyword(s):  
Metallic Glasses ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Shear Banding ◽  
Shear Bands ◽  
Bulk Metallic Glasses ◽  
Three Dimensional ◽  
Structural Heterogeneity ◽  
Submicron Scale ◽  
Three Dimensional Finite Element

In this article, the shear-banding behavior in bulk metallic-glasses (BMGs) is studied using a focused ion beam (FIB)-based nanoindentation method, which involves cylindrical nanoindentation of a FIB-milled BMG microlamella and is capable of revealing the subsurface shear-band patterns down to the submicron scale. The results of the current study on a Zr-based BMG clearly show that short shear bands, with the lengths of a few hundred nanometers, could be severely kinked before growing into a longer one, which implies that structural heterogeneity plays an important role in the microplasticity of BMGs. Furthermore, through the three-dimensional finite-element simulation combined with the theoretical calculation based on the Mohr–Coulomb law, it is found that the yield strengths exhibit a large scatter as a consequence of the structural heterogeneity when microplasticity occurs in the Zr-based BMG, which is consistent with our recent findings obtained from the microcompression experiments.

Effect of frame stiffness on the deformation behavior of bulk metallic glass

2010 ◽  
Vol 25 (10) ◽  
pp. 1958-1962 ◽  
Author(s):  
Z. Han ◽  
Y. Li ◽  
H.J. Gao
Keyword(s):  
Metallic Glass ◽  
Bulk Metallic Glass ◽  
Metallic Glasses ◽  
Deformation Behavior ◽  
Shear Banding ◽  
Bulk Metallic Glasses ◽  
Designed Experiments ◽  
Machine Stiffness ◽  
The Stability ◽  
Frame Stiffness

It has been shown that the stability of shear banding and plasticity of bulk metallic glasses (BMGs) can be strongly influenced by the machine stiffness. Here, we demonstrated that the practice of adding a frame parallel to the sample is quantitatively equivalent to increasing the machine stiffness by the frame stiffness. A series of carefully designed experiments were conducted to verify such an effect, showing controllably enhanced plasticity of BMG samples.

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