Formation of bulk metallic glass in situ nanocomposite in (Cu50Zr43Al7)99Si1 alloy

M. Malekan, S. G. Shabestari, W. Zhang, S. H. Seyedein, R. Gholamipour, K. Yubuta, A. Makino, A. Inoue

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The structure and mechanical properties of the bulk (Cu50Zr43Al7)99Si1 (at.%) rods with different diameters prepared by copper mold casting are investigated. It was found that the alloy with diameter of 2mm has a fully glassy structure. The nanocrystals with the sizes ranging from 2 to 10nm distributed in the glassy matrix for the alloy rod with a diameter of 3mm, and the successful synthesis of the (Cu50Zr43Al7)99Si1 bulk metallic glass in situ nanocomposite was obtained. High compressive strength of 1969MPa and limited plastic strain of less than 1% were obtained for the 2mm (Cu50Zr43Al7)99Si1 glassy rod. For the 3mm alloy rod, the compressive strength and plastic strain are 1835MPa and 10%, respectively. The CuZr nanocrystalline phase precipitated from the 3mm (Cu50Zr43Al7)99Si1 rod shows evident plastic deformation, which contributes to the high ductility of the (Cu50Zr43Al7)99Si1 bulk metallic glass in situ nanocomposites.

Original languageEnglish
Pages (from-to)10-13
Number of pages4
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Volume553
DOIs
Publication statusPublished - Sept 15 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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