| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1600773 | Intermetallics | 2011 | 5 Pages |
Intermittently plastic compression tests of the Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass were performed under a geometrically constrained condition at different cross-head displacement rates. A flow stress-overshoot phenomenon was observed during the macroscopically plastic deformation. It was found that there is a close correlation between the stress-overshoot intensity and the spatial density of shear bands. The stress-overshoot intensity can be used as a parameter to characterize the ability of plastic flow initiation caused by the spatial nucleation of shear bands in the bulk metallic glass. The micromechanisms of shear band multiplication were discussed.
► Intermittent compression test of a Zr-based BMG under a geometrically constrained condition. ► Flow stress-overshoot phenomenon during the macroscopically plastic deformation of the BMG. ► The stress-overshoot intensity can characterize the plastic flow initiation in the BMG. ► The micromechanisms of shear band multiplication in BMGs.
