Nanometallic Glasses: Size Reduction Brings Ductility, Surface State Drives Its Extent

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We report tensile experiments on Ni80P20 metallic glass samples fabricated via a templated electroplating process and via focused ion beam milling, which differed only in their surface energy states: Ga-ion-irradiated and as-electroplated. Molecular dynamics simulations on similar Ni80Al20 systems corroborate the experimental results, which suggest that the transition from brittle to ductile behavior is driven by sample size, while the extent of ductility is driven by surface state.
Publisher
AMER CHEMICAL SOC
Issue Date
2013-09
Language
English
Article Type
Article
Keywords

BULK METALLIC-GLASS; DEFORMATION; COMPRESSION; TRANSITION; MECHANISM; DYNAMICS; STRENGTH; BEHAVIOR; BRITTLE; ALLOYS

Citation

NANO LETTERS, v.13, no.9, pp.4462 - 4468

ISSN
1530-6984
DOI
10.1021/nl402384r
URI
http://hdl.handle.net/10203/187292
Appears in Collection
NE-Journal Papers(저널논문)
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