A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy
Abstract
In this paper, the effect of alloying Pd on the local lattice distortion (LLD) in the Ni and FeCoNiCr host matrixes is quantified by integrating local structure characterization and theoretical calculations. The local structure measurements reveal that the mean LLD in the FeCoNiCrPd high-entropy alloy (HEA) is twice as high as the Ni80Pd20 binary alloy though the FeCoNiCr base alloy has a negligible mean LLD. Density functional theory calculations unveil that the unexpected high mean LLD in FeCoNiCrPd is related to the high fluctuation of LLD in the FeCoNiCr matrix. Finally, these observations suggest a synergetic effect of chemical complexity on HEAs' mean LLD.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Division of Materials Science and Technology
- Cornell Univ., Ithaca, NY (United States). Cornell High Energy Synchrotron Source
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Division of Materials Science and Technology; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
- Publication Date:
- Research Org.:
- Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Cornell Univ., Ithaca, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- OSTI Identifier:
- 1462847
- Alternate Identifier(s):
- OSTI ID: 1702206
- Grant/Contract Number:
- AC05-00OR22725; DMR-1332208
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Scripta Materialia
- Additional Journal Information:
- Journal Volume: 156; Journal ID: ISSN 1359-6462
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; high-entropy alloys; lattice distortion; X-ray diffraction; density functional theory
Citation Formats
Tong, Y., Zhao, S., Jin, K., Bei, H., Ko, J. Y. P., Zhang, Y., and Zhang, F. X. A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy. United States: N. p., 2018.
Web. doi:10.1016/j.scriptamat.2018.07.002.
Tong, Y., Zhao, S., Jin, K., Bei, H., Ko, J. Y. P., Zhang, Y., & Zhang, F. X. A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy. United States. https://doi.org/10.1016/j.scriptamat.2018.07.002
Tong, Y., Zhao, S., Jin, K., Bei, H., Ko, J. Y. P., Zhang, Y., and Zhang, F. X. Fri .
"A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy". United States. https://doi.org/10.1016/j.scriptamat.2018.07.002. https://www.osti.gov/servlets/purl/1462847.
@article{osti_1462847,
title = {A comparison study of local lattice distortion in Ni80Pd20 binary alloy and FeCoNiCrPd high-entropy alloy},
author = {Tong, Y. and Zhao, S. and Jin, K. and Bei, H. and Ko, J. Y. P. and Zhang, Y. and Zhang, F. X.},
abstractNote = {In this paper, the effect of alloying Pd on the local lattice distortion (LLD) in the Ni and FeCoNiCr host matrixes is quantified by integrating local structure characterization and theoretical calculations. The local structure measurements reveal that the mean LLD in the FeCoNiCrPd high-entropy alloy (HEA) is twice as high as the Ni80Pd20 binary alloy though the FeCoNiCr base alloy has a negligible mean LLD. Density functional theory calculations unveil that the unexpected high mean LLD in FeCoNiCrPd is related to the high fluctuation of LLD in the FeCoNiCr matrix. Finally, these observations suggest a synergetic effect of chemical complexity on HEAs' mean LLD.},
doi = {10.1016/j.scriptamat.2018.07.002},
journal = {Scripta Materialia},
number = ,
volume = 156,
place = {United States},
year = {2018},
month = {7}
}
Web of Science
Figures / Tables:

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