A methodology of enhancing the plasticity of amorphous alloys: Elastostatic compression at room temperature

作者：Park Kyoung Won; Lee Chang Myeon; Kim Hwi Jun; Lee Jae Hoon; Lee Jae Chul^*

来源：Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 2009, 499(1-2): 529-533.

DOI：10.1016/j.msea.2008.09.010

• Amorphous alloy
• Structural disordering
• Free volume
• Atomic packing density
• Plasticity

This study demonstrates that prolonged elastostatic compression imposed on amorphous alloys at room temperature induces permanent (homogeneous) deformation associated with structural disordering. It was found that this structural disordering is accompanied by the creation of excess free volume, which in turn enhances the room temperature plasticity. In this study, we investigated the effects of various parameters, such as stress level, flow rate and preloading time, on structural disordering at room temperature. On the basis of the present findings, a method of enhancing the plasticity of amorphous alloys is proposed.

• 出版日期2009-1-15