Abstract
This study investigated the effect of excess free volume generated by the application of elastic shear stress on the mechanical properties of bulk amorphous alloys. A shear deforming device that can create excess free volume without fracturing samples was designed. With repeated elastic stress, the plasticity of shear-deformed amorphous alloys increased, while the yield strength decreased. These behaviors were analyzed from the perspective of the microsturctural changes characterized by the free volume generation, and quantified using the effective activation energy for crystallization.
| Original language | English |
|---|---|
| Pages (from-to) | 203-208 |
| Number of pages | 6 |
| Journal | Journal of Korean Institute of Metals and Materials |
| Volume | 45 |
| Issue number | 4 |
| Publication status | Published - 2007 Apr |
Keywords
- Bulk amorphous alloy
- ECAP
- Free volume
- Plasticity
- Shear stress
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Modelling and Simulation
- Surfaces, Coatings and Films
- Metals and Alloys