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A novel structural gradient metallic glass composite with enhanced mechanical properties

  • J. T. Fan
  • , A. Y. Chen
  • , M. W. Fu
  • , J. Lu

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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. © 2009 Acta Materialia Inc.
Original languageEnglish
Pages (from-to)608-611
JournalScripta Materialia
Volume61
Issue number6
DOIs
Publication statusPublished - Sept 2009
Externally publishedYes

Research Keywords

  • Crystallization
  • Metallic glasses
  • Nanocomposite
  • Plastic deformation

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