Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13994
Title: Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments
Authors: Ye, JC
Lu, J
Yang, Y
Liaw, PK
Keywords: B. Glasses, metallic
B. Mechanical properties
E. Mechanical properties, theory
F. Mechanical testing
Issue Date: 2010
Publisher: Elsevier
Source: Intermetallics, 2010, v. 18, no. 3, p. 385-393 How to cite?
Journal: Intermetallics 
Abstract: In this paper, a formula is derived based on the Mohr-Coulomb law to extract the bulk metallic-glass (BMG) yield strengths in the micro-compression experiments, accounting for the effects of a variety of geometrical parameters arising from the tapered micropillar geometries. The experimental results on three classes of BMGs, comprising the Zr-, Mg- and Fe-based BMGs, show that the yield strengths of the BMG micropillars exhibit a very weak size effect as compared with the literature data obtained from the micro-crystals. The validity of the derived formula is then checked through the comparison with the measurements from the nanoindentation and macro-compression experiments.
URI: http://hdl.handle.net/10397/13994
ISSN: 0966-9795
EISSN: 1879-0216
DOI: 10.1016/j.intermet.2009.08.011
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