X-ray absorption investigation of local structural disorder in Ni1-xFex (x = 0.10, 0.20, 0.35, and 0.50) alloys

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • F. X. Zhang
  • K. Jin
  • S. Mu
  • Hongbin Bei
  • J. C. Liu
  • H. Z. Xue
  • D. Popov
  • Changyong Park
  • G. M. Stocks
  • William J. Weber
  • Yanwen Zhang

Detail(s)

Original languageEnglish
Article number165105
Journal / PublicationJournal of Applied Physics
Volume121
Issue number16
Online published27 Apr 2017
Publication statusPublished - 28 Apr 2017
Externally publishedYes

Abstract

Defect energetics in structural materials has long been recognized to be affected by specific alloy compositions. Local structural distortion greatly affects the physical properties and performance of alloys. To reveal the atomic-level lattice distortion, the local structures of Ni and Fe in Ni1-xFex (x = 0.10, 0.20, 0.35 and 0.50) solid solution alloys were measured with extended X-ray absorption fine structure (EXAFS) technique. The EXAFS measurements have revealed that the bond length of Fe with surrounding atoms is 0.01-0.02 Å larger than that of Ni with its neighbors in the alloys. Both the lattice constant and the interatomic distance of the nearest neighbors increase with the addition of Fe content in the solid solutions. The local bonding environments in Ni1-xFex alloys were also calculated from ab initio and compared with the experimental results.

Citation Format(s)

X-ray absorption investigation of local structural disorder in Ni1-xFex (x = 0.10, 0.20, 0.35, and 0.50) alloys. / Zhang, F. X.; Jin, K.; Zhao, Shijun; Mu, S.; Bei, Hongbin; Liu, J. C.; Xue, H. Z.; Popov, D.; Park, Changyong; Stocks, G. M.; Weber, William J.; Zhang, Yanwen.

In: Journal of Applied Physics, Vol. 121, No. 16, 165105, 28.04.2017.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal