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High‐Entropy Alloys: Irradiation‐Induced Extremes Create Hierarchical Face‐/Body‐Centered‐Cubic Phases in Nanostructured High Entropy Alloys (Adv. Mater. 39/2020)
Author(s) -
Jiang Li,
Hu YongJie,
Sun Kai,
Xiu Pengyuan,
Song Miao,
Zhang Yanwen,
Boldman Walker L.,
Crespillo Miguel L.,
Rack Philip D.,
Qi Liang,
Weber William J.,
Wang Lumin
Publication year - 2020
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202070294
Subject(s) - materials science , high entropy alloys , cubic crystal system , alloy , nanocrystalline material , irradiation , microstructure , crystal structure , cascade , ion , configuration entropy , crystallography , nanotechnology , composite material , thermodynamics , chemical engineering , chemistry , physics , quantum mechanics , nuclear physics , engineering
In article number 2002652, Lumin Wang and co‐workers report that a nanoscale hierarchical dual‐phase structure forms in a nanocrystalline NiFeCoCrCu high‐entropy‐alloy film via an ion‐irradiation‐induced face‐centered‐cubic (fcc) to body‐centeredcubic (bcc) phase transformation. The microstructure of the material is represented in the top and bottom TEM images: a five‐component high‐entropy alloy, before (top) and after (bottom) ion‐beam irradiation. Atoms are displaced in the induced “displacement cascade” (as shown in the top image). The two crystal models (top and bottom) show the atomic arrangement (bcc or fcc) in the resultant dual‐phase structure.