Characterization and properties of nanocrystal-forming Zr-based bulk metallic glasses

Junji Saida, Hidemi Kato, Albertus Deny Heri Setyawan, A. Inoue

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The transformation behavior of Zr-Al-Ni-Cu-Pd metallic glasses is investigated. It is ell known that the Zr65Al7.5 Ni10CU17.5 metallic glass has a high glass-forming ability, which is enable us to produce the glassy sample with a bulky shape. In the initial transformation stage of the alloy, the metastable fcc-Zr2Ni phase is precipitated. Since the fcc-Zr2Ni phase contains several icosahedral clusters in the unit cell, it is strongly correlated with the icosahedral local structure in the glassy state. By substitution of Pd with Cu, the primary phase changes into nanoscale icosahedral quasicrystalline phase. It is found that the nucleation frequency increases drastically with Pd addition, which results in the formation of nanostructured materials. These nanoscale structure control based on the glassy alloys is expected to exhibit unique mechanical properties such as a high strength and good ductility.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalReviews on Advanced Materials Science
Volume10
Issue number1
Publication statusPublished - 2005 Aug 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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