Investigation of viscosity and crystallization in supercooled-liquid region of Zr-based glassy alloys

Yan Li; Ran Li; Shujie Pang; Bingqing Chen; Konstantinos Georgarakis; Alain Le Moulec; Gavin Vaughan; Tao Zhang; Alain R. Yavari

doi:10.1016/j.jnoncrysol.2011.08.031

Investigation of viscosity and crystallization in supercooled-liquid region of Zr-based glassy alloys

Yan Li, Ran Li, Shujie Pang, Bingqing Chen, Konstantinos Georgarakis, Alain Le Moulec, Gavin Vaughan, Tao Zhang, Alain R. Yavari

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

Using viscosity measurement method and in-situ heating synchrotron radiation, the viscosity of the (Zr_0.55Al_0.1Ni _0.05Cu_0.3)_{100 - x}Y_x (x = 0, 0.5, 1, 2) bulk metallic glasses (BMGs) in their supercooled liquid regions (SLRs) and the in-situ heating nucleation were investigated, respectively. In the SLR, the (Zr_0.55Al_0.1Ni_0.05Cu_0.3) ₉₉Y₁ metallic glass which shows distinct plastic strain in compression exhibits higher viscosity than the other three BMGs, however their Poisson's ratios are almost the same. The synchrotron diffraction results show that crystallization happened in the SLR of the (Zr_0.55Al _0.1Ni_0.05Cu_0.3)₉₉Y₁ glassy alloy, which could be the reason for the higher viscosity and larger plastic strain in compression compared to the other three alloys. The fracture surfaces of the glassy alloys were observed and analyzed.

Original language	English
Pages (from-to)	150-154
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	358
Issue number	2
DOIs	https://doi.org/10.1016/j.jnoncrysol.2011.08.031
Publication status	Published - 2012 Jan 15

Keywords

Bulk metallic glass
Poisson's ratio
Synchrotron
Viscosity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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Li, Y., Li, R., Pang, S., Chen, B., Georgarakis, K., Le Moulec, A., Vaughan, G., Zhang, T., & Yavari, A. R. (2012). Investigation of viscosity and crystallization in supercooled-liquid region of Zr-based glassy alloys. Journal of Non-Crystalline Solids, 358(2), 150-154. https://doi.org/10.1016/j.jnoncrysol.2011.08.031

Investigation of viscosity and crystallization in supercooled-liquid region of Zr-based glassy alloys. / Li, Yan; Li, Ran; Pang, Shujie; Chen, Bingqing; Georgarakis, Konstantinos; Le Moulec, Alain; Vaughan, Gavin; Zhang, Tao; Yavari, Alain R.

In: Journal of Non-Crystalline Solids, Vol. 358, No. 2, 15.01.2012, p. 150-154.

Research output: Contribution to journal › Article

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abstract = "Using viscosity measurement method and in-situ heating synchrotron radiation, the viscosity of the (Zr0.55Al0.1Ni 0.05Cu0.3)100 - xYx (x = 0, 0.5, 1, 2) bulk metallic glasses (BMGs) in their supercooled liquid regions (SLRs) and the in-situ heating nucleation were investigated, respectively. In the SLR, the (Zr0.55Al0.1Ni0.05Cu0.3) 99Y1 metallic glass which shows distinct plastic strain in compression exhibits higher viscosity than the other three BMGs, however their Poisson's ratios are almost the same. The synchrotron diffraction results show that crystallization happened in the SLR of the (Zr0.55Al 0.1Ni0.05Cu0.3)99Y1 glassy alloy, which could be the reason for the higher viscosity and larger plastic strain in compression compared to the other three alloys. The fracture surfaces of the glassy alloys were observed and analyzed.",

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author = "Yan Li and Ran Li and Shujie Pang and Bingqing Chen and Konstantinos Georgarakis and {Le Moulec}, Alain and Gavin Vaughan and Tao Zhang and Yavari, {Alain R.}",

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