Plasticity improvement of an Fe-based bulk metallic glass by geometric confinement

W. Chen, Kang Cheung Chan, S. F. Guo, P. Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

36 Citations (Scopus)

Abstract

In this paper, the effect of nickel coating on the plasticity of a brittle Fe-based bulk metallic glass (BMG) was investigated. By electrodepositing a nickel coating onto an Fe75Mo5P10C8.3B1.7BMG, the plasticity of the BMG is shown to increase dramatically from ~ 0.5% to ~ 5.0%. Without reducing the strength of the BMG, the findings demonstrate that the electrodeposited nickel is an effective way to improve prominently brittle BMGs. The increased compressive plastic strain is believed to be attributed to the nucleation, intersection and bifurcation of multiple shear bands due to the exterior impedance of the surrounding coating.
Original languageEnglish
Pages (from-to)1172-1175
Number of pages4
JournalMaterials Letters
Volume65
Issue number8
DOIs
Publication statusPublished - 30 Apr 2011

Keywords

  • Amorphous materials
  • Deformation and fracture
  • Metals and alloys

ASJC Scopus subject areas

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

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