Crystallization behavior of Fe62Nb8-xZrxB30 bulk amorphous alloy

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Abstract

The effect of Zr addition on the glass-forming ability has been investigated in the Fe62Nb8-xZrxB30 bulk amorphous alloy system by thermal (differential scanning calorimeter (DSC) and differential thermal analysis (DTA)) and structural (X-ray diffractometry (XRD) and high-resolution transmission electron microscope (HRTEM)) analysis. Zr addition reduces the bulk glass-forming ability (BGFA) and changes the microstructure obtained after crystallization. The Kissinger method was used to estimate the activation energy (Ea) of crystallization. A strong correlation between Ea and BGFA parameters was observed. Among the crystallization products the metastable Fe23B6 phase appeared, which is probably a consequence of the Nb content in the alloy.

Original languageEnglish
Pages (from-to)789-793
Number of pages5
JournalMaterials Science and Engineering A
Volume375-377
Issue number1-2 SPEC. ISS.
DOIs
Publication statusPublished - Jul 1 2004

Keywords

  • Bulk glass-forming ability
  • Crystallization
  • Differential thermal analysis

ASJC Scopus subject areas

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

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