Abstract
In the present study, WC/Cu60Zr30Ti10 metallic glass composite powders were prepared by mechanical alloying of pure Cu, Zr, Ti, and WC powder mixtures. Cu60Zr30Ti 10 metallic glass composite powders were obtained after 5 h of milling as confirmed by X-ray diffraction and differential scanning calorimetry. The metallic glass composites powders were found to exhibit a supercooled liquid region before crystallization. Bulk metallic glass (BMG) composites were synthesized by vacuum hot pressing the as-milled Cu60Zr 30Ti10 metallic glass composite powders at 723 K in the pressure range of 0.72-1.20 GPa. BMG composite with submicron WC particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared under applied pressure of 1.20 GPa. It was found that the pressure could enhance the thermal stability and promotes nanocrystallization of WC/Cu60Zr30Ti10 BMG composites.
Original language | English |
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Pages (from-to) | 3443-3450 |
Number of pages | 8 |
Journal | Materials Science Forum |
Volume | 475-479 |
Issue number | V |
DOIs | |
Publication status | Published - 2005 |
Externally published | Yes |
Event | PRICM 5: The Fifth Pacific Rim International Conference on Advanced Materials and Processing - Beijing, China Duration: Nov 2 2004 → Nov 5 2004 |
Keywords
- Bulk metallic glass composites
- Mechanical alloying
- Pressure-induced nanocrystallization
- Supercooled liquid region
- Vacuum hot pressing
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- General Materials Science