Abstract
The effects of small amounts of Si on the glass-forming ability, glass transition and crystallization behaviors of a Ti40Zr10Cu36Pd14 bulk glassy alloy were investigated. The addition of Si caused the decrease of glass-forming ability and the increase of the supercooled liquid region. The fragility of the alloys containing Si was higher than that of the Si-free alloy. In the glass transition process, both generation and annihilation of free volumes are suppressed by the addition of 1-3 at% Si. The activation energy for crystallization increases with increasing Si content, indicating the improvement of thermal stability. The crystallization structure of the alloys containing Si contents less than 4% consisted of six phases of CuTi2, Ti, Cu8Zr3, Cu4Ti3, TiZr and PdTi2.
Original language | English |
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Pages (from-to) | 609-614 |
Number of pages | 6 |
Journal | Intermetallics |
Volume | 16 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2008 May 1 |
Keywords
- B. Glasses, metallic
- B. Thermal stability
- C. Rapid solidification processing
- F. Calorimetry
- F. Diffraction
ASJC Scopus subject areas
- Chemistry(all)
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry