Plasticity of Amorphous Alloys: 2. Inhomogeneous Deformation
- Authors
- Park, Kyoung-Won; Lee, Chang-Myeon; Lee, Jae-Chul
- Issue Date
- 11월-2009
- Publisher
- KOREAN INST METALS MATERIALS
- Keywords
- amorphous alloy; free volume; inhomogeneous deformation; shear localization; plasticity
- Citation
- JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS, v.47, no.11, pp.773 - 785
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF THE KOREAN INSTITUTE OF METALS AND MATERIALS
- Volume
- 47
- Number
- 11
- Start Page
- 773
- End Page
- 785
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/119068
- ISSN
- 1738-8228
- 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.
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