Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps

S. X. Song; J. S.C. Jang; J. C. Huang; T. G. Nieh

doi:10.1016/j.intermet.2009.11.009

Author(s)

S. X. Song
J. S.C. Jang
J. C. Huang
T. G. Nieh

Detail(s)

Original language	English
Pages (from-to)	702-709
Journal / Publication	Intermetallics
Volume	18
Issue number	4
Online published	30 Nov 2009
Publication status	Published - Apr 2010
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.intermet.2009.11.009 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-77349106901&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(012cf4f9-07d9-4e99-ad02-61903c0ab9ec).html

Abstract

Transition from inhomogeneous to homogeneous deformation was characterized in an Au₄₉Ag_5.5Pd_2.3Cu_26.9Si_16.3 metallic glass by compression of micro-scaled pillar samples and morphological observations of deformed specimens. In compression, the transition was revealed as the absence of flow serration in a stress-strain curve. Morphologically, it corresponds to the disappearance of localized shear band and the sample is uniformly deformed. The transition was found to be both temperature and strain rate dependent, and at a higher strain rate, it occurred at a higher temperature. The homogeneous deformation and, in particular the stress overshoot phenomenon, could be described by a shear transition zone model. Based on the current data, deformation maps were developed for the Au₄₉Ag_5.5Pd_2.3Cu_26.9Si_16.3 metallic glass.

Research Area(s)

B. Deformation map, B. Glasses, Metallic, B. Mechanical properties at high temperatures, B. Plastic deformation mechanisms, F. Mechanical testing

Citation Format(s)

[ RIS ] [ BibTeX ]

Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps. / Song, S. X.; Jang, J. S.C.; Huang, J. C.; Nieh, T. G.

In: Intermetallics, Vol. 18, No. 4, 04.2010, p. 702-709.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Song, SX, Jang, JSC, Huang, JC & Nieh, TG 2010, 'Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps', Intermetallics, vol. 18, no. 4, pp. 702-709. https://doi.org/10.1016/j.intermet.2009.11.009

Song, S. X., Jang, J. S. C., Huang, J. C., & Nieh, T. G. (2010). Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps. Intermetallics, 18(4), 702-709. https://doi.org/10.1016/j.intermet.2009.11.009

Song SX, Jang JSC, Huang JC, Nieh TG. Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps. Intermetallics. 2010 Apr;18(4):702-709. https://doi.org/10.1016/j.intermet.2009.11.009

Song, S. X. ; Jang, J. S.C. ; Huang, J. C. ; Nieh, T. G. / Inhomogeneous to homogeneous transition in an Au-based metallic glass and its deformation maps. In: Intermetallics. 2010 ; Vol. 18, No. 4. pp. 702-709.