Local atomic structures of amorphous Fe80B20 and Fe70Nb10B20 alloys studied by electron diffraction

Akihiko Hirata, Yoshihiko Hirotsu, Eiichiro Matsubara

研究成果: Article

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Effect of Nb addition on the stabilization of amorphous Fe 80B20 alloy was studied by electron diffraction structure analysis with the help of computer simulation. Atomic structure models with dense-random-packing 5000 atoms were constructed to reproduce interference functions obtained experimentally for the amorphous Fe80B 20 and Fe70Nb10B20 alloys. In the structure models so obtained, prism-type local atomic arrangements dominated around B atoms in both the alloys, while deformed-bcc and icosahedral-like clusters were frequently found around Fe atoms. The icosahedral-like clusters and short Fe-Fe bondings were more frequently found in Fe70Nb 10B20. The difference of glass forming abilities of these alloys is discussed in relation to the local structural differences.

元の言語English
ページ(範囲)2781-2784
ページ数4
ジャーナルMaterials Transactions
46
発行部数12
DOI
出版物ステータスPublished - 2005 12 1

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ASJC Scopus subject areas

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

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