Compositional dependence of thermal and mechanical properties of quaternary Zr-Cu-Ni-Al bulk glassy alloys

Yoshihiko Yokoyama, Akihisa Inoue

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

To determine the optimized composition of quaternary Zr-Cu-Ni-Al bulk glassy alloy, its thermal and mechanical properties are examined. Zr shows high correlation coefficients with Tg and Vickers hardness, whereas Ni and Al show high correlation coefficients with Tl and Tx, respectively. Only Cu shows no remarkable correlation coefficient with any thermal or mechanical properties. We conclude that a compositional region with a high (over 135kJ/m2) U-notch Charpy impact (CUE) value is located around the Zr52Cu30Ni8Al10 bulk glassy alloy, which exhibits a maximum CUE of 165 kj/m2. Moreover, a compositional region with high tensile strength (over 2000MPa) is also located around the Zr48Cu32Ni8Al12 bulk glassy alloy, which shows a maximum tensile strengtn of 2100 MPa.

Original languageEnglish
Pages (from-to)1282-1287
Number of pages6
JournalMaterials Transactions
Volume48
Issue number6
DOIs
Publication statusPublished - 2007 Jun 1

Keywords

  • Charpy impact value
  • Phase diagram
  • Tensile strength
  • Vickers hardness
  • Young's modulus
  • Zirconium-copper-nickel-aluminum quaternary alloy system

ASJC Scopus subject areas

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

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