A novel structural gradient metallic glass composite with enhanced mechanical properties

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

doi:10.1016/j.scriptamat.2009.05.046

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 publication › Journal article › Academic research › peer-review

29 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 language	English
Pages (from-to)	608-611
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2009.05.046
Publication status	Published - 1 Sep 2009

Keywords

Crystallization
Metallic glasses
Nanocomposite
Plastic deformation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

More information

10.1016/j.scriptamat.2009.05.046

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N2 - 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.

AB - 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.

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KW - Metallic glasses

KW - Nanocomposite

KW - Plastic deformation

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SN - 1359-6462

IS - 6

ER -

A novel structural gradient metallic glass composite with enhanced mechanical properties

Abstract

Keywords

ASJC Scopus subject areas

More information

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