Abstract
As-cast bulk metallic glasses fracture without plastic strain under tensile loading at room temperature. However, it is inferred from molecular dynamics calculation that the yield surface of the glass is similar to that of one of the ductile metals. In this study, uni-axial tensile, uni-axial compressive, and simple shear tests were carried out for zirconium-based bulk metallic glass at room temperature and the yield surface (the fracture surface) was inspected experimentally. As a result, the deformation of the zirconium-based bulk metallic glass at room temperature is dominated mainly by shear stress just like in the case of a ductile metal.
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