Glass Formation and Thermal Stability of Bulk Glassy Cu–Zr–Ti–Sn–Si Alloys

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  • Men Hua
    Department of Materiais Science and Engineering, Beijing University of Aeronautics and Astronautics
  • Zhang Tao
    Department of Materiais Science and Engineering, Beijing University of Aeronautics and Astronautics

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  • Glass Formation and Thermal Stability of Bulk Glassy Cu–Zr–Ti–Sn–Si Alloys

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Abstract

The new Cu-based bulk glassy alloys in Cu–Zr–Ti–Sn–Si alloy system were formed by copper mold casting. The critical diameter for glass formation is 5 mm for Cu50Zr42.5Ti7.5, and increases to 6 mm for (Cu0.5Zr0.425Ti0.075)99Sn1 and 7 mm for (Cu0.5Zr0.425Ti0.075)98.8Sn0.6Si0.6. The minor addition of Sn or Sn and Si in Cu50Zr42.5Ti7.5 causes an increase in the supercooled liquid region from about 40 K to about 50 K, and in the reduced glass transition temperature from about 0.59 to about 0.60.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 46 (7), 1692-1694, 2005

    The Japan Institute of Metals and Materials

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