Mechanical behavior of Zr-based and Ta-based micropillars

作者：Chou, H S; Liu, M C; Kuan, S Y; Huang, J C^*

来源：Intermetallics, 2012, 21(1): 26-30.

DOI：10.1016/j.intermet.2011.10.004

• Multiphase intermetallics
• Glasses
• metallic
• Mechanical properties at ambient temperature
• Vapour deposition (physical and chemical)
• Electron microscopy
• transmission

The deformation characteristics of the ZrCuTi amorphous alloys with the introduction of Ta are examined. In microcompression tests, a lower strain burst rate, i.e., a slower shear band propagation speed is detected in the Ta-rich Zr14Cu7Ti5Ta74 amorphous micropillars, different from the typical rapid shear band propagation in Zr-rich Zr45Cu27Ti15Ta13. This phenomenon is rationalized in terms of two fields: the initiation of shear bands and the structure aspect. The findings are useful for alloy design in controlling the inhomogeneous deformation of amorphous alloys.

• 出版日期2012-2
• 单位中山大学