Paper Title:
Viscous Flow Behaviors of Supercooled Liquids of Pre-Annealed Zr55Cu30Al10Ni5 Bulk Metallic Glasses
  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.

  Info
Periodical
Materials Science Forum (Volumes 561-565)
Main Theme
Edited by
Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages
1271-1274
DOI
10.4028/www.scientific.net/MSF.561-565.1271
Citation
T. Yamasaki, S. Maeda, T. Kikuchi, T. Fukami, Y. Yoshihiko, T. Yamamoto, H. Kimura, A. Inoue, "Viscous Flow Behaviors of Supercooled Liquids of Pre-Annealed Zr55Cu30Al10Ni5 Bulk Metallic Glasses", Materials Science Forum, Vols. 561-565, pp. 1271-1274, 2007
Online since
October 2007
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$32.00
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