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.

• Periodical: Advanced Materials Research (Volumes 194-196)
• Pages: 1242-1246
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.194-196.1242
• Online since: February 2011
• Authors: Jing Song Wang, Li Jun Cao, Jing Hua Wang, Hao Yan Sun, Shu You Huang, Qing Guo Xue
• Keywords: Glass Forming Ability (GFA), Molten Alloy Viscosity, Non-Vacuum, Zr-Cu Based Alloy

References

[1] Tan H, Materials Transactions, JIM Vol. 42 (2001), p.551.

[2] Inoue A, Materials Transactions, JIM Vol. 30 (1989), p.965.

[3] Peker A, Materials Science and Engineering: A Vol. 179-180 (1994), p.173.

[4] Drehman A L, Applied Physics Letters Vol. 41 (1982), p.716.

[5] Lin X H, Journal of Applied Physics Vol. 78 (1995), p.6514.

[6] L. Ge, X. Hui, G. Chen. Acta Physico-Chimica Sinica Vol. 23(2007), p.895.

[7] L. Ge, X. Hui, G. Chen. Rare Metal Materials and Engineering Vol. 23(2007), p.589.

[8] Y. Wang, Y. Yang: Amorphous Alloy (Metallurgical Industry Press, China 1985).

[9] J. Guo, X. Bian, X. Li. Chinese Science G Vol. 38 (2008), p.449.

[10] X. Li, X. Bian, J. Guo. Journal of Rare Earths Vol. 25 (2007), p.615.

[11] L. Cao, J. Wang, S. Huang. The Chinese Journal of Process Engineering Vol. 10 (2010), p.48.

[12] L. Cao, J. Wang, S. Huang. SciencePaper Online, Vol. 4 (2009), p.802.

[13] J. Wang, Q. Xue, L. Cao, S. Huang and J. Wang, China Patent 200910087307. 9 (2009).

[14] Q. Xue, L. Cao, J. Wang, S. Huang and J. Wang, China Patent 200910087311. 5 (2009).