Title of article
Experimental characterization of plastic flow initiation in a bulk metallic glass via intermittent compression test
Author/Authors
Han، نويسنده , , Z.H. and Li، نويسنده , , X.P. and He، نويسنده , , L. and Chen، نويسنده , , W. and Jiang، نويسنده , , F. and Sun، نويسنده , , J.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2011
Pages
5
From page
942
To page
946
Abstract
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.
Keywords
B. Glasses , metallic , B. Yield stress , B. Plastic deformation mechanisms , E. Mechanical properties , Theory , F. Mechanical testing
Journal title
Intermetallics
Serial Year
2011
Journal title
Intermetallics
Record number
1505047
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