Abstract
Viscous flow has rarely been observed in solid-state sintering of metal, while operates the dominant mass transport mechanisms in vitreous materials. In the present study, Ti-based bulk metallic glasses (BMGs) with nearly 100% relative density were fabricated by spark plasma sintering of a gas-atomized Ti48Ni32Cu8Si8Sn4 glassy alloy powder. Two main shrinkage stages of densification occurred at a constant heating rate. Based on the analysis of experimental data and microstructure observations of samples sintered at various temperatures, sintering mechanisms are proposed for the sintering of Ti-based metallic glassy powders in light of the viscous flow model.
| Original language | English |
|---|---|
| Pages (from-to) | 98-101 |
| Number of pages | 4 |
| Journal | Journal of Alloys and Compounds |
| Volume | 557 |
| DOIs | |
| Publication status | Published - 25 Apr 2013 |
Keywords
- Bulk metallic glasses
- Powder metallurgy
- Spark plasma sintering
- Viscous flow
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry