A novel structural gradient metallic glass composite with enhanced mechanical properties

J. T. Fan, A. Y. Chen, Mingwang Fu, J. Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

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 languageEnglish
Pages (from-to)608-611
Number of pages4
JournalScripta Materialia
Volume61
Issue number6
DOIs
Publication statusPublished - 1 Sep 2009

Keywords

  • Crystallization
  • Metallic glasses
  • Nanocomposite
  • Plastic deformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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