Bulk and microscale compressive behavior of a Zr-based metallic glass

Micropillars with diameters of 3.8, 1 and 0.7 μm were fabricated from a two-phase Zr-based metallic glass using focus ion beam (FIB), and then tested in compression at strain rates from 1 × 10 −4 to 1 × 10 −2 s −1. The apparent yield strength of the micropillars ranges from 1992 to 2972 MPa, or 25–8...

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Bibliographic Details
Published inScripta materialia Vol. 58; no. 10; pp. 890 - 893
Main Authors Lai, Y.H., Lee, C.J., Cheng, Y.T., Chou, H.S., Chen, H.M., Du, X.H., Chang, C.I., Huang, J.C., Jian, S.R., Jang, J.S.C., Nieh, T.G.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.05.2008
Subjects
Amorphous materials
Compression test
Ion beams
Metallic glasses
Micropillars
Shear bands
Statistics
Strain rate
Yield strength
Zirconium
Zirconium base alloys
Metallic glasses
Micropillars
Compression test
Shear bands
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Summary:Micropillars with diameters of 3.8, 1 and 0.7 μm were fabricated from a two-phase Zr-based metallic glass using focus ion beam (FIB), and then tested in compression at strain rates from 1 × 10 −4 to 1 × 10 −2 s −1. The apparent yield strength of the micropillars ranges from 1992 to 2972 MPa, or 25–86% increase over that of the bulk specimens. This strength increase can be rationalized by the Weibull statistics for brittle materials.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2008.01.009