Abstract
Studies of a number of Cu-Zr amorphous alloys have demonstrated that those exhibiting greater plastic strain during homogeneous deformation at room temperature show lower global plasticity associated with inhomogeneous deformation in a typical compression test. Using a combination of experiments and molecular dynamics simulations, we clarify this seeming paradox between the homogeneous and inhomogeneous deformation by exploring the microstructural aspects in view of the structural disordering, disorder-induced softening, and shear localization and relate these findings to the global plasticity of bulk amorphous alloys. Additional analyses were conducted to derive a simple structural parameter that allows the prediction of the global plasticity of bulk amorphous alloys.
Original language | English |
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Pages (from-to) | 773-785 |
Number of pages | 13 |
Journal | Journal of Korean Institute of Metals and Materials |
Volume | 47 |
Issue number | 11 |
Publication status | Published - 2009 |
Keywords
- Amorphous alloy
- Free volume
- Inhomogeneous deformation
- Plasticity
- Shear localization
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Modelling and Simulation
- Surfaces, Coatings and Films
- Metals and Alloys