Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/28096
Title: Achieving high energy absorption capacity in cellular bulk metallic glasses
Authors: Chen, SH
Chan, KC 
Wu, FF
Xia, L
Issue Date: 2015
Source: Scientific reports, 14 2015, v. 5, no. , p. 1-11
Abstract: Cellular bulk metallic glasses (BMGs) have exhibited excellent energy-absorption performance by inheriting superior strength from the parent BMGs. However, how to achieve high energy absorption capacity in cellular BMGs is vital but mysterious. In this work, using step-by-step observations of the deformation evolution of a series of cellular BMGs, the underlying mechanisms for the remarkable energy absorption capacity have been investigated by studying two influencing key factors: the peak stress and the decay of the peak stress during the plastic-flow plateau stages. An analytical model of the peak stress has been proposed, and the predicted results agree well with the experimental data. The decay of the peak stress has been attributed to the geometry change of the macroscopic cells, the formation of shear bands in the middle of the struts, and the "work-softening" nature of BMGs. The influencing factors such as the effect of the strut thickness and the number of unit cells have also been investigated and discussed. Strategies for achieving higher energy absorption capacity in cellular BMGs have been proposed.
Publisher: Nature Publishing Group
Journal: Scientific reports 
EISSN: 2045-2322
DOI: 10.1038/srep10302
Rights: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
The following publication Chen, S. H. et al. Achieving high energy absorption capacity in cellular bulk metallic glasses. Sci. Rep. 5, 10302 (2015) is available at https://dx.doi.org/10.1038/srep10302
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

19
Last Week
0
Last month
1
Citations as of Jun 30, 2020

WEB OF SCIENCETM
Citations

18
Last Week
0
Last month
1
Citations as of Jul 10, 2020

Page view(s)

149
Last Week
2
Last month
Citations as of Jul 13, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.