Abstract
A novel structural gradient metallic glass composite was formed by subjecting fully glassy alloy to surface mechanical attrition treatment. The structural gradient consisted of submicron-scale crystallites on the top surface, followed by nano-scale crystallites and a fully amorphous glass matrix inside. Plasticity was greatly improved by up to about 400% comparing with that of as-cast metallic glass. Sub-forming crystallites are responsible for the improvement in plasticity. The result provides a promising approach to form new hybrid materials with high performance.
Original language | English |
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Pages (from-to) | 608-611 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 61 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1 Sept 2009 |
Keywords
- Crystallization
- Metallic glasses
- Nanocomposite
- Plastic deformation
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics