Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments
|Journal / Publication||Intermetallics|
|Publication status||Published - Mar 2010|
|Link to Scopus||https://www.scopus.com/record/display.uri?eid=2-s2.0-74649086397&origin=recordpage|
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.
- B. Glasses, metallic, B. Mechanical properties, E. Mechanical properties, theory, F. Mechanical testing
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
Ye, JC, Lu, J, Yang, Y & Liaw, PK 2010, 'Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments', Intermetallics, vol. 18, no. 3, pp. 385-393. https://doi.org/10.1016/j.intermet.2009.08.011
Ye, J. C., Lu, J., Yang, Y., & Liaw, P. K. (2010). Extraction of bulk metallic-glass yield strengths using tapered micropillars in micro-compression experiments. Intermetallics, 18(3), 385-393. https://doi.org/10.1016/j.intermet.2009.08.011