Bulk glassy and quasicrystalline (Zr65Al7.5Cu 27.5)100-xTix Alloys and Their Mechanical Properties

J. B. Qiang, W. Zhang, G. Q. Xie, A. Inoue

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The glass-forming ability (GFA) and thermal stability of (Zr 65Al7.5Cu27.5)100-xTix (x = 0-15; in at%) alloys have been investigated. It was revealed that a certain amount of Ti addition could improve the GFA of Zr65Al 7.5Cu27.5 alloy effectively. The best bulk metallic glass (BMG) forming composition was found at (Zr65Al7.5Cu 27.5)93Ti7. Bulk glassy samples with diameter of 7 mm were made by means of copper mold casting. Further Ti additions deteriorated GFA and led to the precipitation of icosahedral phase, and 3 mm quasicrystalline cylinder was obtained at (Zr65Al 7.5Cu27.5)90Ti10. Room temperature compression testing showed that the ouasicrvstalline alloy had a fracture strength of 1875MPa, being 300MPa larger than that of the Zr65Al 7.5Cu27.5)93Ti727.5)93117 monolithic BMG.

Original languageEnglish
Pages (from-to)1789-1792
Number of pages4
JournalMaterials Transactions
Volume48
Issue number7
DOIs
Publication statusPublished - 2007 Jul
Externally publishedYes

Keywords

  • Fracture
  • Glass forming ability
  • Metallic glasses
  • Quasicrystals

ASJC Scopus subject areas

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

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