Title
Unconventional Deformation Behaviours of Nanoscaled High-Entropy Alloys.
Abstract
The bulk high-entropy alloys (HEAs) exhibit similar deformation behaviours as traditional metals. These bulk behaviours are likely an averaging of the behaviours exhibited at the nanoscale. Herein, in situ atomic-scale observation of deformation behaviours in nanoscaled CoCrCuFeNi face-centred cubic (FCC) HEA was performed. The deformation behaviours of this nanoscaled FCC HEA (i.e., nanodisturbances and phase transformations) were distinct from those of nanoscaled traditional FCC metals and corresponding bulk HEA. First-principles calculations revealed an obvious fluctuation of the stacking fault energy and stability difference at the atomic scale in the HEA. The stability difference was highlighted only in the nanoscaled HEA and induced unconventional deformation behaviours. Our work suggests that the nanoscaled HEA may provide more chances to discover the long-expected essential distinction between the HEAs and traditional metals.
Year
DOI
Venue
2018
10.3390/e20100778
ENTROPY
Keywords
Field
DocType
nanoscaled high-entropy alloys,nanodisturbances,phase transformations,atomic-scale unstable
Mathematical optimization,Nanoscopic scale,High entropy alloys,Stacking-fault energy,Atomic units,Deformation (mechanics),Condensed matter physics,Mathematics
Journal
Volume
Issue
ISSN
20
10
1099-4300
Citations 
PageRank 
References 
1
0.48
0
Authors
7
Name
Order
Citations
PageRank
Yeqiang Bu110.48
Shenyou Peng210.48
Shiwei Wu310.48
Yujie Wei410.48
Gang Wang513.19
Jiabin Liu610.48
Hongtao Wang710.82