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

Journal Article · · Journal of Applied Physics
DOI:https://doi.org/10.1063/1.4982705· OSTI ID:1354651
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [4];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
  2. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Earth and Environmental Sciences
  3. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering
  4. Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab., High Pressure Collaborative Access Team (HPCAT)

Defect energetics in structural materials has long been recognized to be affected by specific alloy compositions. Significantly enhanced radiation resistance has recently been observed in concentrated solid-solution alloys. However, the link between local structural disorder and modified defect dynamics in solid solutions remains unclear. To reveal the atomic-level lattice distortion, the local structures of Ni and Fe in Ni1-xFex (x=0.1, 0.2, 0.35 and 0.5) solid solution alloys were measured with extended X-ray absorption fine structure (EXAFS) technique. The lattice constant and the first-neighbor distances increase with the increase of Fe content in the solid solutions. EXAFS measurements have revealed that the bond length of Fe with surrounding atoms is 0.01-0.03 larger than that of Ni in the alloy systems. Debye-Waller factor of the Fe-Fe bonds in all the systems is also slightly larger than that of the Ni-Ni bond. EXAFS fitting suggests that the local structural disorder is enhanced with the addition of Fe elements in the solid solution. The local bonding environments from ab initio calculation are in good agreement with the experimental results, which suggest that the Fe has a larger first-neighbor bonding distance than that of Ni, and thus Ni atom inside the Ni-Fe solid solution alloys undergoes compressive strain.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Energy Frontier Research Centers (EFRC) (United States). Energy Dissipation to Defect Evolution (EDDE)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; AC02-06CH11357; FG02-99ER45775; NA0001974
OSTI ID:
1354651
Alternate ID(s):
OSTI ID: 1361860
Journal Information:
Journal of Applied Physics, Vol. 121, Issue 16; ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (35)

ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Generalized Gradient Approximation Made Simple journal October 1996
Local structure studies of CoFeMnX (X = Si and Ge) Heusler alloys using X-ray absorption spectroscopy journal December 2015
Properties of Ni1−xFex (0.1<x<0.9) and Invar (x=0.64) alloys obtained by electrodeposition journal September 2010
Soft magnetic composite based on mechanically alloyed nanocrystalline Ni3Fe phase journal April 2005
Determination of the Fe−Ni phase diagram below 400°C journal April 1989
Projector augmented-wave method journal December 1994
Electronic properties of random alloys: Special quasirandom structures journal November 1990
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Local Atomic Arrangements in Fe 63.2 Ni 36.8 Invar from Diffuse X-Ray Scattering Measurements journal April 1999
An Approximate Theory of Order in Alloys journal March 1950
Origin of the Invar effect in iron–nickel alloys journal July 1999
Debye–Waller Factors and Absorptive Scattering Factors of Elemental Crystals journal May 1996
Magnetism and magnetic asphericity in NiFe alloys journal September 1998
Polarized x-ray-absorption spectroscopy of the uranyl ion: Comparison of experiment and theory journal July 1996
A revision of the Fe-Ni phase diagram at low temperatures (<400 °C) journal December 1996
Effects of Fe concentration on the ion-irradiation induced defect evolution and hardening in Ni-Fe solid solution alloys journal December 2016
Ca K -edge X-ray absorption fine structure in BaTiO 3 -CaTiO 3 solid solutions journal January 2013
The Compressibility of Media under Extreme Pressures journal September 1944
Phase stability, EXAFS investigation and correlation between nanostructure and extrinsic magnetic properties of nanocrystalline Pr2(Co,Fe)7 journal May 2016
Phase and magnetic studies of the high-energy alloyed Ni–Fe journal May 2014
Defect energetics of concentrated solid-solution alloys from ab initio calculations: Ni 0.5 Co 0.5 , Ni 0.5 Fe 0.5 , Ni 0.8 Fe 0.2 and Ni 0.8 Cr 0.2 journal January 2016
Influence of chemical disorder on energy dissipation and defect evolution in concentrated solid solution alloys journal October 2015
Special quasirandom structures journal July 1990
The Relationship of Lattice Spacings and Magnetic Properties book January 1958
Neutron scattering lengths and cross sections journal January 1992
Atomic-scale properties of Ni-based FCC ternary, and quaternary alloys journal October 2015
High-precision sampling for Brillouin-zone integration in metals journal August 1989
Microstructures and mechanical properties of a directionally solidified NiAl–Mo eutectic alloy journal January 2005
Local atomic order and individual pair displacements of Fe 46.5 Ni 53.5 and Fe 22.5 Ni 77.5 from diffuse x-ray scattering studies journal August 1996
Coherent versus Uncorrelated Nanoscale Heterogeneities in L 1 0 Solid Solutions and Their Signatures from Local and Extended Probes journal January 2007
Theoretical approaches to x-ray absorption fine structure journal July 2000
Giant magnetoresistive in soft ferromagnetic multilayers journal January 1991
Order-Disorder Transitions in Iron-Nickel (50%-50%) Alloys from Iron Meteorites as Studied by Mössbauer Spectroscopy journal April 1982
Local Atomic Structure of Partially Ordered NiMn in NiMn/NiFe Exchange Coupled Layers:  1. XAFS Measurements and Structural Refinement journal April 2005

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Structure and thermal expansion of coordination shells in solid and liquid Invar alloys by molecular dynamics study journal January 2020