Compressive plasticity of a La-based glass-crystal composite at cryogenic temperatures

S. V. Madge, D. V. Louzguine-Luzgin, A. Kawashima, A. L. Greer, A. Inoue

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The La55Al25Cu10Ni10-10 vol.% Ti glassy composites have excellent compressive strength and plasticity at room temperature (RT). At cryogenic temperature (77 K), neither the glassy matrix, nor the Ti particles undergo embrittlement, and the composite retains appreciable toughness. Surprisingly, despite significant shear band plasticity at 77 K, failure occurs in a mixed mode manner, with large areas showing quasi-cleavage features that appear to initiate from cracks at the glass-Ti interfaces, which also limit the overall plastic strain. Interface engineering is the key to further alloy development for even better properties.

Original languageEnglish
Pages (from-to)146-151
Number of pages6
JournalMaterials and Design
Volume101
DOIs
Publication statusPublished - 2016 Jul 5

Keywords

  • Bulk metallic glass
  • Composites
  • Cryogenic plasticity
  • Toughness

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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