TY  - JOUR
AU  - Ma, Yue
AU  - Wang, Qing
AU  - Li, Chunling
AU  - Santodonato, Louis J.
AU  - Feygenson, Mikhail
AU  - Dong, Chuang
AU  - Liaw, Peter K.
TI  - Chemical short-range orders and the induced structural transition in high-entropy alloys
JO  - Scripta materialia
VL  - 144
SN  - 1359-6462
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2019-01581
SP  - 64 - 68
PY  - 2018
AB  - The present work verifies the existence of chemical short-range orders (CSROs) in high-entropy alloys (HEAs) using a cluster-plus-glue-atom model. Two HEAs with a composition of Al2M14 (M = Ni4Co4Fe3Cr3 or Ni1Co1Fe2Cr1) are designed, which is derived from the cluster model of [Al-M12](M2Al1) in face-centered-cubic structure or [Al-M14]Al1 in body-centered-cubic structure. It is found that the calculated pair-distribution functions (PDFs) at short inter-atomic distances by these cluster models can describe the neutron PDFs better than the ones by the average crystal structures. It is due to the different CSROs characterized by cluster units that induce the structural transition of HEAs.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000414824700016
DO  - DOI:10.1016/j.scriptamat.2017.09.049
UR  - https://juser.fz-juelich.de/record/860938
ER  -