Influence of Strain Rate on Mechanical Property of Zr52.5Cu17.9Ni14.6Al10Ti5 Bulk Metallic Glass at Room Temperature

Ya Juan Sun

doi:10.4028/www.scientific.net/AMR.616-618.1721

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Influence of Strain Rate on Mechanical Property of Zr_52.5Cu_17.9Ni_14.6Al₁₀Ti₅ Bulk Metallic Glass at Room Temperature

Abstract:

The mechanical property of Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass was investigated at different strain-rate range. It is indicated that the yield strength of the Zr52.5Cu17.9Ni14.6Al10Ti5 bulk metallic glass is insensitive to quasi-static strain rates ranging from 4×10-4 s-1 to 4×10-3 s-1. However, plasticity remarkably decreases with increasing strain rate under compression tests. The more shear bands were observed on the side surface of the fractured samples by SEM at low strain rate, which is contributed to the improved ductility.