Characterization of crystalline inclusions in cast bulk Zr-Cu-Ni-Al glassy alloy

Yoshihiko Yokoyama, Takeshi Shinohara, Kenzo Fukaura, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

In order to clarify intrinsic features of bulk glassy alloys, the structural control is the most significant factor. However, it is difficult to obtain a single glassy phase by conventional casting methods. Crystalline inclusions in Zr-based bulk glassy alloy are often seen on the fracture surface. Crystalline inclusions are easily formed in molten alloy state by inhomogeneous nucleation or impurities i.e. oxygen, magnesium dichloride and so on. In Zr55Cu30Ni5Al10 bulk glassy alloy, most of the crystalline inclusions are probably considered as τ3 type intermetallic compound with typical composition of Zr51Cu 28Al21. The morphology of the crystalline inclusions is changed by the quantity of absorbed oxygen impurities in bulk glassy alloy.

Original languageEnglish
Pages (from-to)1819-1823
Number of pages5
JournalMaterials Transactions
Volume45
Issue number6
DOIs
Publication statusPublished - 2004 Jun

Keywords

  • Crystalline inclusion
  • Solidified morphology
  • Zirconium-copper-nickel-aluminum alloy system
  • τ type intermetallic compound

ASJC Scopus subject areas

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

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