TY - JOUR
T1 - Anomalous X-Ray Scattering and Extended X-Ray Absorption Fine Structure Study of the Local Structure of CrFeCoNiMox (x = 0.11, 0.18, and 0.23) High-Entropy Alloys
AU - Haiyan, HE
AU - Bing, WANG
AU - Si, LAN
AU - Jacob, P. C. RUFF
AU - Chengjun, SUN
AU - Naeem, Muhammad
AU - Liu, Chain Tsuan
AU - Wang, Xun-Li
PY - 2021/11
Y1 - 2021/11
N2 - Anomalous x-ray scattering (AXS) and extended x-ray absorption fine structure (EXAFS) were used to determine the local structure of Mo in CrFeCoNiMox (x = 0.11, 0.18, and 0.23), a high-entropy alloy with a face-centered cubic (FCC) lattice. No superlattice peaks were observed down to the 10–4 intensity level. This observation along with the nearly constant decrease of the FCC diffraction peaks above the Mo K absorption edge suggests that Mo atoms have no preferred site occupancy in the FCC lattice. Modeling of the EXAFS data suggests a local chemical order in CrFeCoNiMox, where in Mo-rich samples (e.g., x = 0.23), Mo atoms are preferably surrounded by lighter atoms, such as Cr.
AB - Anomalous x-ray scattering (AXS) and extended x-ray absorption fine structure (EXAFS) were used to determine the local structure of Mo in CrFeCoNiMox (x = 0.11, 0.18, and 0.23), a high-entropy alloy with a face-centered cubic (FCC) lattice. No superlattice peaks were observed down to the 10–4 intensity level. This observation along with the nearly constant decrease of the FCC diffraction peaks above the Mo K absorption edge suggests that Mo atoms have no preferred site occupancy in the FCC lattice. Modeling of the EXAFS data suggests a local chemical order in CrFeCoNiMox, where in Mo-rich samples (e.g., x = 0.23), Mo atoms are preferably surrounded by lighter atoms, such as Cr.
UR - https://scholars.cityu.edu.hk/en/publications/anomalous-xray-scattering-and-extended-xray-absorption-fine-structure-study-of-the-local-structure-of-crfeconimox-x--011-018-and-023-highentropy-alloys(28c9128d-e5dd-42f8-a5c3-5acc52e06371).html
U2 - 10.1007/s11837-021-04871-z
DO - 10.1007/s11837-021-04871-z
M3 - Article
SN - 1047-4838
VL - 73
SP - 3285
EP - 3290
JO - JOM
JF - JOM
IS - 11
ER -