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

Y. H. Lai, C. J. Lee, Y. T. Cheng, H. S. Chou, H. M. Chen, X. H. Du, C. I. Chang, J. C. Huang, S. R. Jian, J. S.C. Jang, T. G. Nieh

Research output: Contribution to journalArticlepeer-review

121 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)890-893
Number of pages4
JournalScripta Materialia
Volume58
Issue number10
DOIs
StatePublished - May 2008

Keywords

  • Compression test
  • Metallic glasses
  • Micropillars
  • Shear bands

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