Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 385-393 |
| Journal / Publication | Intermetallics |
| Volume | 18 |
| Issue number | 3 |
| Publication status | Published - Mar 2010 |
| Externally published | Yes |
Link(s)
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. © 2009 Elsevier Ltd. All rights reserved.
Research Area(s)
- B. Glasses, metallic, B. Mechanical properties, E. Mechanical properties, theory, F. Mechanical testing
Citation Format(s)
Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments. / Ye, J. C.; Lu, J.; Yang, Y. et al.
In: Intermetallics, Vol. 18, No. 3, 03.2010, p. 385-393.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
