Enhanced plastic deformation in a metallic glass induced by notches |
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| Authors: | J.X. Zhao R.T. Qu F.F. Wu S.X. Li |
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| Affiliation: | 1. Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road, Shenyang 110016, China;2. Shenyang National Laboratory for Materials Science , Institute of Metal Research, Chinese Academy of Sciences , 72 Wenhua Road, Shenyang 110016, China;3. School of Materials Science and Engineering, Liaoning University of Technology , 169 Shiying Street, Jinzhou 121001, China;4. School of Materials Science and Engineering, Harbin Institute of Technology , Harbin 150001, China |
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| Abstract: | It is shown that the compressive plasticity of a metallic glass, namely Zr52.5Ni14.6Al10Cu17.9Ti5, can be improved by the introduction of two symmetrical notches. The enhanced plasticity may be ascribed to a blocking effect of the propagation of shear bands caused by large stress gradients around the notches. In contrast to ceramic specimens with similar notches, the plasticity enhancement of metallic glass induced by notches can provide a new approach to understanding its unique mechanism of deformation. |
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| Keywords: | metallic glass shear bands notches plasticity deformation |
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