High temperature deformation of a Cu40Zr44Ag8Al8 bulk metallic glass

Y. Liu; J. J. Blandin; G. Kapelski; M. Suéry

doi:10.1016/j.msea.2011.01.045

Author(s)

Y. Liu
J. J. Blandin
G. Kapelski
M. Suéry

Detail(s)

Original language	English
Pages (from-to)	3748-3753
Journal / Publication	Materials Science and Engineering A
Volume	528
Issue number	10-11
Publication status	Published - 25 Apr 2011
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.msea.2011.01.045 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-79952280945&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(0c6aa816-de59-4eeb-b8d0-063e75dde948).html

Abstract

The deformation behavior of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass in its supercooled liquid region was investigated in compression. Strain rate jumps were carried out at various temperatures ranging from about T_g to T_g+20K. The results show that the alloy exhibits quasi-Newtonian behavior at the highest temperature with a transition to non Newtonian flow when temperature decreases and strain rate increases. The mechanical behavior has been analyzed in the framework of the free volume model. The material has been characterized after deformation at T_g+20K by XRD and comparison has been made with the same material simply held at high temperature for the same duration. It was observed that deformation slightly accelerates crystallization which results in a very important hardening on the stress-strain curve. However, even if there is no hardening at high temperature which suggests that no crystallization has occurred, some hardening is observed at room temperature even for short holding times at high temperature. © 2011 Elsevier B.V.

Research Area(s)

Bulk metallic glasses, Constitutive law, High temperature deformation, Viscosity

Citation Format(s)

[ RIS ] [ BibTeX ]

High temperature deformation of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass. / Liu, Y.; Blandin, J. J.; Kapelski, G. et al.
In: Materials Science and Engineering A, Vol. 528, No. 10-11, 25.04.2011, p. 3748-3753.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Liu, Y, Blandin, JJ, Kapelski, G & Suéry, M 2011, 'High temperature deformation of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass', Materials Science and Engineering A, vol. 528, no. 10-11, pp. 3748-3753. https://doi.org/10.1016/j.msea.2011.01.045

Liu, Y., Blandin, J. J., Kapelski, G., & Suéry, M. (2011). High temperature deformation of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass. Materials Science and Engineering A, 528(10-11), 3748-3753. https://doi.org/10.1016/j.msea.2011.01.045

Liu Y, Blandin JJ, Kapelski G, Suéry M. High temperature deformation of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass. Materials Science and Engineering A. 2011 Apr 25;528(10-11):3748-3753. doi: 10.1016/j.msea.2011.01.045

Liu, Y. ; Blandin, J. J. ; Kapelski, G. et al. / High temperature deformation of a Cu₄₀Zr₄₄Ag₈Al₈ bulk metallic glass. In: Materials Science and Engineering A. 2011 ; Vol. 528, No. 10-11. pp. 3748-3753.