TITLE:
Dynamic Compressive Deformation and Fracture of a Hollow Bulk Metallic Glass
AUTHORS:
Haiyan Ye, Tao Zhang, Zhihua Wang, Hefeng Zhou, Shengbo Sang, Huijun Yang, Junwei Qiao
KEYWORDS:
Bulk Metallic Glasses; Deformation and Fracture; Dynamic Compressive Loading
JOURNAL NAME:
Open Journal of Metal,
Vol.3 No.3,
September
18,
2013
ABSTRACT: The dynamic mechanical behaviors of hollow Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 bulk metal glass (BMG) are investigated using a splitting Hopkinson pressure bar (SHPB) in this study. Upon dynamic compressive loading, the hollow specimen exhibit lower strength and poor ductility, caused by the higher stress concentration for the hollow one through FEM modeling. The different strain-rate responses for the hollow specimen are compared and explained. On the fracture surface of the hollow samples, there are highly dense vein patterns, many liquid drops and fishbone-like patterns.