Induced elastic anisotropy in a bulk metallic glass

A. Concustell, S. Godard-Desmarest, M. A. Carpenter, N. Nishiyama, A. L. Greer

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Full evaluation of the elasticity tensor of a bulk metallic glass (Pd 40Cu30Ni10P20) shows anisotropy induced by creep under uniaxial compression changing sign with increasing strain. Anisotropy due to anelastic strain is erased by zero stress annealing. At higher strain anisotropy of opposite sign suggests structural alignment by plastic flow. Induced anisotropy is most evident in the Poisson ratio, may relate to other properties, including the strength and toughness of metallic glasses, and may lead to misinterpretation of annealing effects.

Original languageEnglish
Pages (from-to)1091-1094
Number of pages4
JournalScripta Materialia
Volume64
Issue number12
DOIs
Publication statusPublished - 2011 Jun

Keywords

  • Acoustic methods
  • Anisotropy
  • Bulk metallic glass
  • Creep
  • Elastic behavior

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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