Formation and mechanical properties of Zr-Cu-Al bulk glassy alloys

Yoshihiko Yokoyama, Kenzo Fukaura, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


We used highly purified elements (i.e. low-oxygen-content Zr metal) and a special arc melting and casting furnace to prepare Zr50Cu40Al10 rod-shaped bulk glassy alloy over 10mm in diameter. In the Zr-Cu-Al alloy system, we examined the glass-forming ability in the bulk glassy state by δTx, Tg/Tl, and the Hruby factor. The Hruby factor is appropriate for evaluating glass-forming ability in the cast Zr-Cu-Al bulk glassy alloy. In order to enhance the mechanical properties even in pre-oxidized Zr-Cu-Al (oxygen concentration 1000ppm) bulk glassy alloy, we examined the effectiveness of a small addition of a fourth element. As a result, we found that the effect of adding the fourth element depends on the periodicity in the periodic table, i.e. the chemical interaction with Zr, Cu and Al elements.

Original languageEnglish
Pages (from-to)427-431
Number of pages5
JournalMaterials Science and Engineering A
Issue number1-2 SPEC. ISS.
Publication statusPublished - 2004 Jul
Externally publishedYes


  • Glass-forming ability
  • Small additive elements
  • T/T Hruby factor
  • Zirconium-copper-aluminum alloy system
  • δT

ASJC Scopus subject areas

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


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