The effect of crystallization on microstructure and magnetic properties of Fe61Co7Zr9.5Mo5W2B15.5bulk metallic glass

Yong Hu, Lin Liu, Kang Cheung Chan, Mingxiang Pan, Weihua Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

32 Citations (Scopus)

Abstract

The effect of crystallization on microstructure and magnetic properties of Fe61Co7Zr9.5Mo5W2B15.5bulk metallic glass (BMG) was investigated using X-ray diffraction (XRD), differential thermal analyzer (DTA ), transmission electron microscopy (TEM) and vibrating samples magnetometer (VSM). Without annealing, the as-cast alloy exhibits paramagnetic properties. However, the magnetic properties and the microstructure change significantly when isothermal annealing is applied to the alloy. In particular, at different annealing temperatures, the coercivity (Hc) of the alloy changes from a minimum value of 7.3 Oe to a maximum value of 196.9 Oe. The dependence of coercivity and saturation magnetization on microstructure is discussed in terms of magnetic domain wall pinning and magnetic exchange interaction.
Original languageEnglish
Pages (from-to)1080-1084
Number of pages5
JournalMaterials Letters
Volume60
Issue number8
DOIs
Publication statusPublished - 1 Apr 2006

Keywords

  • Domain wall pinning
  • Fe-based bulk metallic glasses
  • Magnetic exchange interaction
  • Magnetic properties
  • Structure modification

ASJC Scopus subject areas

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

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