Atomic volumes and local structure of metallic glasses

Research output: Contribution to journalArticle

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Abstract

The composition dependence of the room-temperature average atomic volume is analysed for early and late transition metal (TE-TL type) and metal-metalloid (TL-MD type) amorphous alloys. For the Zr-Cu, Ti-Cu and Hf-Ni sytems, the data suggest an ideal solid solution behaviour. For the other TE-TL systems, two composition ranges can be distinguished (20-70 at.% TL and 84-93 at.% TL). For each composition range, a specific atomic volume Va-Zr can be assigned to the Zr atoms that has the same value for any of the alloying components TL = Fe, Co and Ni. For TE-rich compositions (range 1), V a1-Zr ≈ Vhcp-Zr whereas for TL-rich compositions (range 2), Va2-Zr <Va1-Zr. For the TL atoms, whereas both Va2-TL(TE-TL) and Va-TL(TL-MD) are fairly close to the VTL values of the close-packed crystalline structures, the V a2-TL(TE-TL) values are smaller by as much as about 2-3% than the Va-TL(TL-MD) values.

Original languageEnglish
Pages (from-to)2509-2520
Number of pages12
JournalActa Materialia
Volume53
Issue number8
DOIs
Publication statusPublished - May 2005

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Metallic glass
Chemical analysis
Metalloids
Atoms
Amorphous alloys
Alloying
Transition metals
Solid solutions
Metals
Crystalline materials
Temperature

Keywords

  • Amorphous alloys
  • Amorphous metals
  • Atomic volume
  • Density

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

Atomic volumes and local structure of metallic glasses. / Bakonyi, I.

In: Acta Materialia, Vol. 53, No. 8, 05.2005, p. 2509-2520.

Research output: Contribution to journalArticle

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