scholarly journals Densification and heterogeneity enhancement of a Fe-based metallic glass under local plastic flow

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
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2014 ◽  
Vol 105 (9) ◽  
pp. 091904 ◽  
Author(s):  
B. A. Sun ◽  
Z. Y. Liu ◽  
Y. Yang ◽  
C. T. Liu

2007 ◽  
Vol 22 (10) ◽  
pp. 2655-2658 ◽  
Author(s):  
W.H. Jiang ◽  
F.X. Liu ◽  
F. Jiang ◽  
K.Q. Qiu ◽  
H. Choo ◽  
...  

We investigated the effect of strain rate on the plastic-flow stress of a Zr-based bulk-metallic glass in quasistatic compression. The results indicate that the plastic-flow stress is dependent on the strain rate: an increase in the strain rate leads to a decrease in the plastic-flow stress, and vice versa. However, simply loading, unloading, and reloading at a constant strain rate do not change the plastic-flow stress. This strain-rate dependence of the plastic-flow stress may be related to shear-banding operations.


2006 ◽  
Vol 21 (6) ◽  
pp. 1570-1575 ◽  
Author(s):  
W.H. Jiang ◽  
F.X. Liu ◽  
D.C. Qiao ◽  
H. Choo ◽  
P.K. Liaw

Using geometrically constrained specimens, the plastic flow behaviors of the as-cast and the relaxed Zr52.5Cu17.9Ni14.6Al10.0Ti5.0 bulk metallic glass in the dynamic compression were investigated. Both alloys exhibit a significant plasticity in the dynamic compression. The plastic deformation in both alloys is still inhomogeneous, which is characterized by the serrated plastic flow and the formation of shear bands. Free volumes affect the shear banding and the plastic flow. The reduced free volume results in the deviation of the shear banding direction from the maximum shear stress. The relaxed alloy exhibits the obvious stress overshoot, which is consistent with the theoretical prediction using a free volume model.


2013 ◽  
Vol 114 (3) ◽  
pp. 033521 ◽  
Author(s):  
Z. Y. Liu ◽  
G. Wang ◽  
K. C. Chan ◽  
J. L. Ren ◽  
Y. J. Huang ◽  
...  

2012 ◽  
Vol 112 (5) ◽  
pp. 053516 ◽  
Author(s):  
J. C. Ye ◽  
J. P. Chu ◽  
Y. C. Chen ◽  
Q. Wang ◽  
Y. Yang

2008 ◽  
Vol 24 (1) ◽  
pp. 1-16 ◽  
Author(s):  
W JIANG ◽  
G FAN ◽  
F LIU ◽  
G WANG ◽  
H CHOO ◽  
...  

Author(s):  
Ryo Tominaga ◽  
Kenji Amiya ◽  
Akira Tokairin ◽  
Youji Fujimoto ◽  
Seiichi Takahashi ◽  
...  

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