Synthesis and mechanical properties of new Cu-based Cu-Zr-Al glassy alloys with critical diameters up to centimeter order

B. W. Zhou, X. G. Zhang, W. Zhang, H. Kimura, T. Zhang, A. Makino, A. Inoue

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

A new Cu-based Cu-Zr-Al glassy alloy has been found to exhibit very high glass-forming ability, wide supercooled liquid region and high fracture strength. The addition of Al to a binary eutectic Cu55Zr45 alloy significantly increases the stabilization of supercooled liquid as well as glass-forming ability in Cu55-xZr45Alx (x = 0 to 10) alloy series. The largest supercooled liquid region of 80K, reduced glass transition temperature of 0.60 and γ value of 0.417 are simultaneously obtained for a ternary eutectic Cu47Zr 45Al8 alloy, which can fabricate fully glassy sample with critical diameters up to 15 mm by copper mold casting. The bulk glassy alloy also exhibits high compressive fracture strength of over 1900 MPa and the high Young's modulus above 100GPa.

Original languageEnglish
Pages (from-to)826-829
Number of pages4
JournalMaterials Transactions
Volume51
Issue number4
DOIs
Publication statusPublished - 2010 Apr

Keywords

  • Copper-based alloy
  • Glass-forming ability
  • Glassy alloy
  • Mechanical property
  • Thermal stability

ASJC Scopus subject areas

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

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