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Title: Roles of Vacancy/Interstitial Diffusion and Segregation in the Microchemistry at Grain Boundaries of Irradiated Fe-Cr-Ni alloys

Abstract

A detailed analysis of the diffusion fluxes near and at grain boundaries of irradiated Fe–Cr–Ni alloys, induced by preferential atom-vacancy and atom-interstitial coupling, is presented. The diffusion flux equations were based on the Perks model formulated through the linear theory of the thermodynamics of irreversible processes. The preferential atom-vacancy coupling was described by the mobility model, whereas the preferential atom-interstitial coupling was described by the interstitial binding model. The composition dependence of the thermodynamic factor was modeled using the CALPHAD approach. The calculated fluxes up to 10 dpa suggested the dominant diffusion mechanism for chromium and iron is via vacancy, while that for nickel can swing from the vacancy to the interstitial dominant mechanism. The diffusion flux in the vicinity of a grain boundary was found to be greatly modified by the segregation induced by irradiation, leading to the oscillatory behavior of alloy compositions in this region.

Authors:
 [1];  [1];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Univ. of Wisconsin, Madison, WI (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE)
OSTI Identifier:
1254787
Alternate Identifier(s):
OSTI ID: 1345245
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Nuclear Materials
Additional Journal Information:
Journal Volume: 473; Journal Issue: 2; Journal ID: ISSN 0022-3115
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Yang, Ying, Field, Kevin G., Allen, Todd R., and Busby, Jeremy T. Roles of Vacancy/Interstitial Diffusion and Segregation in the Microchemistry at Grain Boundaries of Irradiated Fe-Cr-Ni alloys. United States: N. p., 2016. Web. doi:10.1016/j.jnucmat.2016.02.007.
Yang, Ying, Field, Kevin G., Allen, Todd R., & Busby, Jeremy T. Roles of Vacancy/Interstitial Diffusion and Segregation in the Microchemistry at Grain Boundaries of Irradiated Fe-Cr-Ni alloys. United States. https://doi.org/10.1016/j.jnucmat.2016.02.007
Yang, Ying, Field, Kevin G., Allen, Todd R., and Busby, Jeremy T. Tue . "Roles of Vacancy/Interstitial Diffusion and Segregation in the Microchemistry at Grain Boundaries of Irradiated Fe-Cr-Ni alloys". United States. https://doi.org/10.1016/j.jnucmat.2016.02.007. https://www.osti.gov/servlets/purl/1254787.
@article{osti_1254787,
title = {Roles of Vacancy/Interstitial Diffusion and Segregation in the Microchemistry at Grain Boundaries of Irradiated Fe-Cr-Ni alloys},
author = {Yang, Ying and Field, Kevin G. and Allen, Todd R. and Busby, Jeremy T.},
abstractNote = {A detailed analysis of the diffusion fluxes near and at grain boundaries of irradiated Fe–Cr–Ni alloys, induced by preferential atom-vacancy and atom-interstitial coupling, is presented. The diffusion flux equations were based on the Perks model formulated through the linear theory of the thermodynamics of irreversible processes. The preferential atom-vacancy coupling was described by the mobility model, whereas the preferential atom-interstitial coupling was described by the interstitial binding model. The composition dependence of the thermodynamic factor was modeled using the CALPHAD approach. The calculated fluxes up to 10 dpa suggested the dominant diffusion mechanism for chromium and iron is via vacancy, while that for nickel can swing from the vacancy to the interstitial dominant mechanism. The diffusion flux in the vicinity of a grain boundary was found to be greatly modified by the segregation induced by irradiation, leading to the oscillatory behavior of alloy compositions in this region.},
doi = {10.1016/j.jnucmat.2016.02.007},
journal = {Journal of Nuclear Materials},
number = 2,
volume = 473,
place = {United States},
year = {Tue Feb 23 00:00:00 EST 2016},
month = {Tue Feb 23 00:00:00 EST 2016}
}

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Cited by: 20 works
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Works referenced in this record:

Phase stability under irradiation
journal, January 1984


Radiation-induced degradation of stainless steel light water reactor internals
journal, July 2012

  • Kenik, Edward A.; Busby, Jeremy T.
  • Materials Science and Engineering: R: Reports, Vol. 73, Issue 7-8
  • DOI: 10.1016/j.mser.2012.05.002

Overview of microstructural evolution in neutron-irradiated austenitic stainless steels
journal, October 1993


Structural materials for fission & fusion energy
journal, November 2009


On the mechanism of radiation-induced segregation in austenitic Fe–Cr–Ni alloys
journal, May 1998


The effect of alloy composition on radiation-induced segregation in FeCrNi alloys
journal, April 1997


Radiation-Induced Segregation and Grain Boundary Migration in Fe–Cr–Ni Model Alloy under Irradiation
journal, January 1993


Quantitative studies of irradiation-induced segregation and grain boundary migration in FeCrNi alloy
journal, August 1995


Dependence of radiation-induced segregation on dose, temperature and alloy composition in austenitic alloys
journal, August 1995


Radiation-induced segregation in binary and ternary alloys
journal, August 1979


Modeling radiation-induced segregation in austenitic Fe–Cr–Ni alloys
journal, June 1998


Modeling of Radiation-Induced Segregation in Austenitic Fe-Cr-Ni Alloys
journal, January 1996


A model for radiation-induced segregation in fcc binary alloys
journal, August 1995


Segregation in irradiated alloys: The inverse Kirkendall effect and the effect of constitution on void swelling
journal, September 1978


Contribution of interstitial migration to segregation in concentrated alloys
journal, May 1991


Ab initio-based diffusion theory and tracer diffusion in Ni–Cr and Ni–Fe alloys
journal, October 2010


A theory of radiation-induced segregation in concentrated alloys
journal, August 1979


Drift forces on vacancies and interstitials in alloys with radiation-induced segregation
journal, February 1983


Kinetic model for equilibrium and nonequilibrium segregation in concentrated alloys under irradiation
journal, August 1994


A phase field model for segregation and precipitation induced by irradiation in alloys
journal, March 2015

  • Badillo, A.; Bellon, P.; Averback, R. S.
  • Modelling and Simulation in Materials Science and Engineering, Vol. 23, Issue 3
  • DOI: 10.1088/0965-0393/23/3/035008

A defect-based model of radiation-induced segregation to free surfaces in binary alloys
journal, August 2015


Coupled pair potential, thermochemical and phase diagram data for transition metal binary systems-VII
journal, January 1984


Defect and solute properties in dilute Fe-Cr-Ni austenitic alloys from first principles
journal, May 2012


Phenomenological coefficients in a concentrated alloy for the dumbbell mechanism
journal, August 2006


Correlation Factors for Diffusion in Nondilute Alloys
journal, August 1971


A note on Manning's relations for concentrated multicomponent alloys
journal, August 1986


A new analysis of diffusion in ternary alloys: application to F.C.C. Fe-Ni-Cr alloys
journal, October 2002


Theoretical analysis of experimental tracer and interdiffusion data in Cu–Ni–Fe alloys
journal, October 2005


Algebraic Representation of Thermodynamic Properties and the Classification of Solutions
journal, February 1948

  • Redlich, Otto; Kister, A. T.
  • Industrial & Engineering Chemistry, Vol. 40, Issue 2
  • DOI: 10.1021/ie50458a036

SGTE data for pure elements
journal, October 1991


Thermodynamic modeling and kinetics simulation of precipitate phases in AISI 316 stainless steels
journal, May 2014


Self-diffusion in austenitic Fe-Cr-Ni alloys
journal, March 1980

  • Rothman, S. J.; Nowicki, L. J.; Murch, G. E.
  • Journal of Physics F: Metal Physics, Vol. 10, Issue 3
  • DOI: 10.1088/0305-4608/10/3/009

Diffusion in FeNiCr alloys with an F.C.C. lattice
journal, June 1985


Diffusion of Nickel in Binary Alloys of Iron with Nickel, Manganese, and Chromium
journal, January 1967


Ternary Diffusion in FCC Phase of Fe–Ni–Cr Alloy System at 1223 K
journal, January 1991


Tracer diffusion of63Ni in Fe-17 wt pct Cr-12 wt pct Ni
journal, July 1973


Tracer diffusion of59Fe and51Cr in Fe-17 Wt Pet Cr-12 Wt Pet Ni austenitic alloy
journal, November 1973

  • Perkins, R. A.; Padgett, R. A.; Tunali, N. K.
  • Metallurgical Transactions, Vol. 4, Issue 11
  • DOI: 10.1007/BF02644255

Composition dependence of defect properties in electron-irradiated Fe-Cr-Ni solid solutions
journal, April 1984


Influence of nickel concentration on point defect migration in high-nickel Fe-Cr-Ni alloys
journal, March 1988


Modeling radiation induced segregation in Ni–Cr model alloys from first principles
journal, June 2012


The thermodynamic factor in interdiffusion: A strong effect in amorphous Ni-Zr
journal, February 1995


Current understanding of radiation-induced degradation in light water reactor structural materials
journal, March 2013


Ab initio description of monovacancies in paramagnetic austenitic Fe-Cr-Ni alloys
journal, May 2012


Works referencing / citing this record:

Vacancy and interstitial atom evolution with the separation of the nanoscale phase in Fe–Cr alloys: phase-field simulations
journal, January 2020

  • Yan, Zhengwei; Shi, Shujing; Li, Yongsheng
  • Physical Chemistry Chemical Physics, Vol. 22, Issue 6
  • DOI: 10.1039/c9cp06247e