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Title: Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy

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.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ;  [1] ; ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [1] ;  [3] ;  [3] ;  [4] ;  [4] ; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); The Univ. of Tennessee, Knoxville, TN (United States)
  3. Univ. of Chicago, Chicago, IL (United States)
  4. Cornell Univ., Ithaca, NY (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 6; Journal Issue: 8; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; solid solution alloys; neutron diffraction; EXAFS; local structure
OSTI Identifier:
1456802

Zhang, Fuxiang, Tong, Yang, Jin, Ke, Bei, Hongbin, Weber, William J., Huq, Ashfia, Lanzirotti, Antonio, Newville, Matt, Pagan, Darren C., Ko, J. Y. P., and Zhang, Yanwen. Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy. United States: N. p., Web. doi:10.1080/21663831.2018.1478332.
Zhang, Fuxiang, Tong, Yang, Jin, Ke, Bei, Hongbin, Weber, William J., Huq, Ashfia, Lanzirotti, Antonio, Newville, Matt, Pagan, Darren C., Ko, J. Y. P., & Zhang, Yanwen. Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy. United States. doi:10.1080/21663831.2018.1478332.
Zhang, Fuxiang, Tong, Yang, Jin, Ke, Bei, Hongbin, Weber, William J., Huq, Ashfia, Lanzirotti, Antonio, Newville, Matt, Pagan, Darren C., Ko, J. Y. P., and Zhang, Yanwen. 2018. "Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy". United States. doi:10.1080/21663831.2018.1478332. https://www.osti.gov/servlets/purl/1456802.
@article{osti_1456802,
title = {Chemical complexity induced local structural distortion in NiCoFeMnCr high-entropy alloy},
author = {Zhang, Fuxiang and Tong, Yang and Jin, Ke and Bei, Hongbin and Weber, William J. and Huq, Ashfia and Lanzirotti, Antonio and Newville, Matt and Pagan, Darren C. and Ko, J. Y. P. and Zhang, Yanwen},
abstractNote = {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.},
doi = {10.1080/21663831.2018.1478332},
journal = {Materials Research Letters},
number = 8,
volume = 6,
place = {United States},
year = {2018},
month = {6}
}

Works referenced in this record:

Nanostructured High-Entropy Alloys with Multiple Principal Elements: Novel Alloy Design Concepts and Outcomes
journal, May 2004
  • Yeh, J.-W.; Chen, S.-K.; Lin, S.-J.
  • Advanced Engineering Materials, Vol. 6, Issue 5, p. 299-303
  • DOI: 10.1002/adem.200300567