Paper Title:
Discussion on Relationship between Viscosities of Molten Zr-Cu Based Alloys and their Glass Forming Ability
  Abstract

The dynamic viscosities of molten Zr55Ni5Al10Cu30 and Zr50Cu50 alloys were measured by using rotating cylinder method under non-vacuum condition. According to the lnη~1/T curves, discontinuous changes were found and the activation energy was calculated. The activation energy of molten Zr55Ni5Al10Cu30 alloy is obviously larger than that of molten Zr50Cu50 alloy. Amorphous sample of Zr55Ni5Al10Cu30 with 3mm diameter was prepared successfully under non-vacuum condition, but there are crystallization phases in Zr50Cu50 amorphous sample with 2mm diameter. The relationship between viscosities of molten Zr-Cu based alloys and their glass forming ability (GFA) was discussed, and viscosities of molten Zr-Cu based alloys play an important role on their GFA.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
1242-1246
DOI
10.4028/www.scientific.net/AMR.194-196.1242
Citation
J. S. Wang, L. J. Cao, J. H. Wang, H. Y. Sun, S. Y. Huang, Q. G. Xue, "Discussion on Relationship between Viscosities of Molten Zr-Cu Based Alloys and their Glass Forming Ability", Advanced Materials Research, Vols. 194-196, pp. 1242-1246, 2011
Online since
February 2011
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$32.00
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