Strain burst speeds in metallic glass micropillars

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

3 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)1893-1897
Journal / PublicationIntermetallics
Volume18
Issue number10
Online published26 Mar 2010
Publication statusPublished - Oct 2010
Externally publishedYes

Abstract

Uniaxial microcompression and nanoscratch tests using the nanoindentation system on the Mg-, Au- and Zr-based metallic glass micropillars with diameters of 3.8 and 1 μm were performed and compared. Strain burst phenomena were observed in all microcompression tests as indications of localized shearing. The strain burst speed of micropillars can be measured based on the raw displacement-time profile. The results indicate that strain burst speed of metallic glasses increases with increasing sample size, with decreasing wear resistance, and with decreasing ductility. The current study demonstrates that strain burst speed and wear characteristics can be regarded as promising indicators for the ductility of metallic glasses.

Research Area(s)

  • B. Glasses, metallic, B. Mechanical properties at ambient temperature, B. Plastic deformation mechanisms, F. Mechanical testing

Citation Format(s)

Strain burst speeds in metallic glass micropillars. / Lai, Y.H.; Chen, H.M.; Lee, C.J.; Huang, J.C.; Jang, J.S.C.

In: Intermetallics, Vol. 18, No. 10, 10.2010, p. 1893-1897.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review