Phase Stability of an Amorphous Phase Against Electron Irradiation Induced Crystallization in Fe-Based Metallic Glasses

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  • Nagase Takeshi
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Nino Akihiro
    Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University
  • Umakoshi Yukichi
    Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University

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Abstract

Electron irradiation induced nano-crystallization of melt-spun amorphous phase in Fe-Zr-B ternary alloys was investigated focusing on the difference in phase stability of amorphous phase during thermal annealing and electron irradiation. Nano-composite structure composed of nano-crystalline α-Fe precipitates with b.c.c.-structure, metallic compounds and a residual amorphous matrix was formed under 2.0 MeV electron irradiation at 298 K, while such nano-structure was hardly realized by thermal annealing. The phase stability of an amorphous phase against electron irradiation was discussed based on the relationship between thermal properties and critical onset total dose of electron irradiation induced crystallization at 298 K.

Journal

  • MATERIALS TRANSACTIONS

    MATERIALS TRANSACTIONS 48 (6), 1340-1349, 2007

    The Japan Institute of Metals and Materials

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