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Precipitation of the ZrCu B2 phase in Zr50Cu50–xAlx (x = 0, 4, 6) metallic glasses by rapidly heating and cooling

  • Tokujiro Yamamoto, Yoshihiko Yokoyama (a1), Tetsu Ichitsubo (a2), Hisamichi Kimura (a1), Eiichiro Matsubara (a2) and Akihisa Inoue (a3)...

Abstract

Precipitation of ZrCu with the B2 structure in Zr50Cu50–xAlx (x = 0, 4, 6) metallic glasses by rapidly heating and cooling was investigated. By rapidly heating and cooling, the ZrCu B2 phase precipitates the most in Zr50Cu46Al4 metallic glass plates prepared by tilt-casting without using a silica nozzle. The amount of the ZrCu B2 phase precipitated in Zr50Cu46Al4 metallic glass ribbons prepared by using a silica nozzle decreases by Si diffused from the silica nozzle during the preparation. This work is discussed from the viewpoint of crystallization behavior and why larger Zr-based bulk metallic glasses can be formed by suction, tilt, and cap casting without using a silica nozzle.

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a)Address all correspondence to this author. e-mail: toku@imr.tohoku.ac.jp

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Precipitation of the ZrCu B2 phase in Zr50Cu50–xAlx (x = 0, 4, 6) metallic glasses by rapidly heating and cooling

  • Tokujiro Yamamoto, Yoshihiko Yokoyama (a1), Tetsu Ichitsubo (a2), Hisamichi Kimura (a1), Eiichiro Matsubara (a2) and Akihisa Inoue (a3)...

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