| Title |
Plasticity of Amorphous Alloys: 2. Inhomogeneous Deformation |
| Authors |
박경원(Kyoung Won Park); 이창면(Chang Myeon Lee); 이재철(Jae Chul Lee) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
amorphous alloy; free volume; inhomogeneous deformation; shear Localization; plasticity |
| 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. |