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Title: Deformation behavior of bulk metallic glasses under a mixed-mode (I/II) loading condition
Authors: Chen, SH 
Domel, A
Yue, TM 
Tsui, CP 
Chan, KC 
Dahmen, KA
Liaw, PK
Keywords: Bulk metallic glass
Deformation behavior
Loading condition
Stress gradient
Issue Date: 2018
Publisher: Elsevier Ltd
Source: Intermetallics, 2018, v. 93, p. 148-154 How to cite?
Journal: Intermetallics 
Abstract: Bulk metallic glasses (BMGs) demonstrate different deformation behavior under varying loading conditions. In the present work, a Zr57Cu20Al10Ni8Ti5 (atomic percent, at.%) BMG was subjected to a mixed-mode (I/II) loading condition by tailoring double-side notches. The findings show stable plastic-flow plateau stages in the loading-displacement curves, and this phenomenon is different from other notched BMG specimens with predominant-mode-I failure. More importantly, due to the stress concentrations between two notches, most of the slip events with large load drops occur on the fracture plane, resulting in a wide smooth region consisting of several shear steps on the fracture surface. We show that despite different deformation behavior, the specimens still display slip-size statistics of the plastic flow, which are similar to those seen in compression tests. The present findings give more insight into the deformation behavior/mechanisms of BMGs under varying loading conditions for practical structural applications.
ISSN: 0966-9795
EISSN: 1879-0216
DOI: 10.1016/j.intermet.2017.12.004
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