Highly inhomogeneous compressive plasticity in nanocrystal-toughened Zr-Cu-Ni-Al bulk metallic glass

F. O. Méar, T. Wada, D. V. Louzguine-Luzgin, A. Inoue

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

A Zr62Cu15.5Al10Ni12.5 bulk metallic glass with a large supercooled liquid region of 90 K, produced by copper-mould casting, exhibits a high strength of 1730 MPa and superior but highly inhomogeneous plasticity under uniaxial compression at ambient temperature. Micro-X-ray diffraction shows that compressive loading facilitates crystallization in the monolithic glassy alloy, resulting in room-temperature plasticity. The plastic deformation of the Zr62Cu 15.5Al10Ni12.5 BMG may be attributed to in situ precipitation of nanocrystals during compression in heavily deformed areas.

Original languageEnglish
Pages (from-to)276-281
Number of pages6
JournalPhilosophical Magazine Letters
Volume89
Issue number4
DOIs
Publication statusPublished - 2009 Apr

Keywords

  • Amorphous alloys
  • Mechanical properties
  • Mechanical testing

ASJC Scopus subject areas

  • Condensed Matter Physics

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