Abstract
The present paper aims to report an effect of a supercooled liquid region on crystallization behaviour of an Al85Y8Ni5Co2 metallic glass produced by rapid solidification of the melt. It is found that crystallization behaviour of the above-mentioned Al-based metallic glass, above glass-transition temperature and below it, follows different transformation mechanisms. Formation of the primary nanoscale α-Al particles observed during continuous heating, or after annealing above glass-transition temperature, does not occur by the crystallization reaction during isothermal annealing below glass-transition temperature. At such conditions, an unknown metastable phase is formed conjointly with α-Al by the eutectic-like mechanism.
| Original language | English |
|---|---|
| Pages (from-to) | 75-80 |
| Number of pages | 6 |
| Journal | Materials Letters |
| Volume | 54 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2002 May 1 |
Keywords
- Aluminum base Y-Ni-Co metallic glass
- Amorphous phase
- Crystallization behaviour
- Nanocrystalline particles
- Rapid solidification
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering