Abstract
The compressive deformation behavior of as-cast Zr55.9Cu18.6Ta8Al7.5Ni10 Bulk Metallic Glass (BMG) composite with micro-scale particles of Ta-rich solid solution embedded in an amorphous matrix was investigated in the supercooled liquid region. It was found that the apparent viscosity of the BMG is dependent on temperature and strain rate. A deviation from a Newtonian behavior was observed at high strain rate and low temperature. The experimental results can be described by a master curve based on a stretched exponential function and the free volume theory. The structural state and the thermal ability of the BMG composite after deformation are also discussed in the paper.
| Original language | English |
|---|---|
| Title of host publication | Materials science forum |
| Publisher | Trans Tech Publications Ltd |
| Pages | 561-567 |
| Number of pages | 7 |
| ISBN (Print) | 0878494359, 139780878494354 |
| DOIs | |
| Publication status | Published - 2007 |
| Event | International Conference on Superplasticity in Advanced Materials [ICSAM] - Duration: 1 Jan 2007 → … |
Conference
| Conference | International Conference on Superplasticity in Advanced Materials [ICSAM] |
|---|---|
| Period | 1/01/07 → … |
Keywords
- Bulk metallic glass composites
- Plastic deformation mechanisms
- Supercooled liquid region
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Materials Science(all)
- Condensed Matter Physics