Triple-yieldable multiphase reinforced bulk metallic glass matrix composites under tension

Wei Guo, Junji Saida

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Multiphase (Ta-rich phase, B2 and B19′-CuZr) reinforced bulk metallic glass matrix composites (BMGMCs) were successfully developed. The Ta-rich phase appeared not only to hinder the propagation of shear bands, but also to act as a nucleant for the B2 and B19′ phases to homogenize their distribution. The composites showed superior tensile plasticity, work-hardening, and a unique triple yielding behavior. The martensitic transformation of B2-CuZr, the deformation of the Ta-rich phase, and the twinning and detwinning of B19′-CuZr all contributed to these mechanical properties. The present novel BMGMC is expected to lead to a breakthrough in designing work-hardenable and ductile BMGMCs.

Original languageEnglish
Pages (from-to)42-45
Number of pages4
JournalMaterials Letters
Volume191
DOIs
Publication statusPublished - 2017 Mar 15

Keywords

  • Amorphous materials
  • Composites
  • Multi-reinforcing phases
  • Plasticity
  • Work hardening

ASJC Scopus subject areas

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

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