Enhanced plasticity of a Zr50Cu48Al2bulk metallic glass

L. Xia, Kang Cheung Chan, S. K. Kwok, P. Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

In this work, a Zr50Cu48Al2bulk metallic glass (BMG) with improved glass forming ability and mechanical properties was synthesized by adding a small amount of Al to a Zr-Cu binary glass-forming alloy. The as-cast Zr50Cu48Al2glassy rod does not exhibit macroscopic failure under compression at room temperature indicating the excellent plasticity of the BMG. The deformation behavior of the BMG was studied intensively by examining the true stress-strain curve and the surface morphology of the post-deformation sample. The effect of minor Al addition on the mechanical properties including the fracture stress, the modulus, and the kinetic characteristics of the BMG was also investigated. The enhanced plasticity of the BMG is considered to be related to its reduced fragility parameter m value.
Original languageEnglish
Pages (from-to)1469-1472
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume357
Issue number5
DOIs
Publication statusPublished - 1 Mar 2011

Keywords

  • Bulk metallic glass
  • Mechanical properties
  • Micro-alloying

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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