Abstract
In this study, effect of sample geometry on the mechanical properties of a Zr-based bulk metallic glass was investigated. For this purpose truncated conical samples with different semi-vertex angles ( α) were prepared for quasistatic compression test. It was noticed that as the geometry of the sample was slightly deviated from a cylindrical shape (for which α = 0°) to a conical shape (for which α > 0°), stress gradients were induced in the conical samples which were estimated using finite element analysis. This led to the formation of a large amount of intersecting multiple shear bands. As a result, as-cast BMG sample with negligible plasticity tends to deform in a ductile manner.
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