Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy
Journal Article
·
· Materials Research Letters
- Division of Materials Science and Technology, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Division of Materials Science and Technology, Oak Ridge National Laboratory, Oak Ridge, TN, USA, Department of Materials Science and Engineering, The University of Tennessee, Knoxville, TN, USA
- Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- University of Chicago, Center for Advanced Radiation Sources, Chicago, IL, USA
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, NY, USA
In order to study chemical complexity-induced lattice distortion in high-entropy alloys, the static Debye–Waller (D-W) factor of NiCoFeMnCr solid solution alloy is measured with low temperature neutron diffraction, ambient X-ray diffraction, and total scattering methods. Here, the static atomic displacement parameter of the multi-element component alloy at 0 K is 0.035–0.041 Å, which is obvious larger than that of element Ni (~0 Å). The atomic pair distance between individual atoms in the alloy investigated with extended X-ray absorption fine structure (EXAFS) measurements indicates that Mn has a slightly larger bond distance (~0.4%) with neighbor atoms than that of others.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; AC05-00OR22725
- OSTI ID:
- 1483331
- Alternate ID(s):
- OSTI ID: 1456802
- Journal Information:
- Materials Research Letters, Journal Name: Materials Research Letters Vol. 6 Journal Issue: 8; ISSN 2166-3831
- Publisher:
- Informa UK LimitedCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
Cited by: 38 works
Citation information provided by
Web of Science
Web of Science
Critical Review of Chemical Complexity Effect on Local Structure of Multi-principal-Element Alloys
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journal | August 2019 |
Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys
|
journal | January 2020 |
Lattice Distortion and Phase Stability of Pd-Doped NiCoFeCr Solid-Solution Alloys
|
journal | November 2018 |
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