Abstract
Viscous flow behavior in supercooled liquid region of as-cast and pre-annealed
Zr55Cu30Al10Ni5 bulk metallic glasses has been examined by using a penetration viscometer under
high-speed heating rate of 20, 200 and 400 °C/min. Applied load for the cylindrical-shaped penetration
indenter with a diameter of 1 mm was varied from 0.049 N to 0.294 N. Viscosity was quite
independent of these applied loads. By pre-annealing the bulk metallic glasses at 400 °C, the density
of the glasses increased, while the viscosity and the activation energy for viscous flow in their
soopercooled liquid decreased with the pre-annealing treatments. Corresponding measurements of the
differential thermal calorimetry (DSC) have been also done.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference4 articles.
1. T. Yamasaki, S. Maeda, Y. Yokoyama, D. Okai, T. Fukami, H. M. Kimura and A. Inoue: Mater. Trans. 46 (2005), 2746-2750.
2. T. Yamasaki, S. Maeda, Y. Yokoyama, D. Okai, T. Fukami, H. M. Kimura and A. Inoue, J. Intermetallics, 14 (2006), 1102-1106.
3. A. Slipenyuk and J. Eckert, Scripta Materialia, 50 (2004), 39-44.
4. J. J. Gilman, Philo. Mag. 37 (1978) 577. Fig 4 High-resolution TEM micrograph and correponding selected area diffraction pattern for the pre-annealed Zr55Cu30Al10Ni5 BMG specimen at 400 °C for 120min.
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