Abstract
A new method for determining the viscosity of the supercooled liquid region of metallic glasses by means of a single-particle compressive test (SPCT) is proposed. A spherical metallic glassy particle several hundred micrometers in diameter is uniaxially pressed using a precisely controlled micro-hot-pressing system. Assuming viscous flow of the material, we derived the viscosity as a function of compressive load and displacement under a constant crosshead speed. SPCT is effective in evaluating metallic glass viscosity regardless of glass forming capability.
| Original language | English |
|---|---|
| Pages (from-to) | 971-974 |
| Number of pages | 4 |
| Journal | Scripta Materialia |
| Volume | 67 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2012 Dec |
Keywords
- Fe-based metallic glass
- Mono-sized particles
- Single-particle compressive test
- Viscosity
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys