Phase-field modeling of void evolution and swelling in materials under irradiation

Yulan Li, Shenyang Hu, Xin Sun, Fei Gao, Charles H. Henager, Mohammad Khaleel

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Void swelling is an important phenomenon observed in both nuclear fuels and cladding materials in operating nuclear reactors. In this work we develop a phase-field model to simulate void evolution and void volume change in irradiated materials. Important material processes, including the generation of defects such as vacancies and self-interstitials, their diffusion and annihilation, and void nucleation and evolution, have been taken into account in this model. The thermodynamic and kinetic properties, such as chemical free energy, interfacial energy, vacancy mobility, and annihilation rate of vacancies and interstitials, are expressed as a function of temperature and/or defect concentrations in a general manner. The model allows for parametric studies of critical void nucleus size, void growth kinetics, and void volume fraction evolutions. Our simulations demonstrated that void swelling displays a quasi-bell shape distribution with temperature often observed in experiments.

Original languageEnglish
Pages (from-to)856-865
Number of pages10
JournalScience China: Physics, Mechanics and Astronomy
Volume54
Issue number5
DOIs
Publication statusPublished - 1 May 2011
Externally publishedYes

Fingerprint

swelling
voids
irradiation
interstitials
interfacial energy
nuclear fuels
nuclear reactors
defects
kinetics
bells
thermodynamic properties
free energy
nucleation
nuclei
temperature
simulation

Keywords

  • interstitials
  • phase-field model
  • radiation
  • vacancies
  • void swelling

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Phase-field modeling of void evolution and swelling in materials under irradiation. / Li, Yulan; Hu, Shenyang; Sun, Xin; Gao, Fei; Henager, Charles H.; Khaleel, Mohammad.

In: Science China: Physics, Mechanics and Astronomy, Vol. 54, No. 5, 01.05.2011, p. 856-865.

Research output: Contribution to journalArticle

Li, Yulan ; Hu, Shenyang ; Sun, Xin ; Gao, Fei ; Henager, Charles H. ; Khaleel, Mohammad. / Phase-field modeling of void evolution and swelling in materials under irradiation. In: Science China: Physics, Mechanics and Astronomy. 2011 ; Vol. 54, No. 5. pp. 856-865.
@article{c5efcb0a2006497b9b62096131aa73c5,
title = "Phase-field modeling of void evolution and swelling in materials under irradiation",
abstract = "Void swelling is an important phenomenon observed in both nuclear fuels and cladding materials in operating nuclear reactors. In this work we develop a phase-field model to simulate void evolution and void volume change in irradiated materials. Important material processes, including the generation of defects such as vacancies and self-interstitials, their diffusion and annihilation, and void nucleation and evolution, have been taken into account in this model. The thermodynamic and kinetic properties, such as chemical free energy, interfacial energy, vacancy mobility, and annihilation rate of vacancies and interstitials, are expressed as a function of temperature and/or defect concentrations in a general manner. The model allows for parametric studies of critical void nucleus size, void growth kinetics, and void volume fraction evolutions. Our simulations demonstrated that void swelling displays a quasi-bell shape distribution with temperature often observed in experiments.",
keywords = "interstitials, phase-field model, radiation, vacancies, void swelling",
author = "Yulan Li and Shenyang Hu and Xin Sun and Fei Gao and Henager, {Charles H.} and Mohammad Khaleel",
year = "2011",
month = "5",
day = "1",
doi = "10.1007/s11433-011-4316-y",
language = "English",
volume = "54",
pages = "856--865",
journal = "Science China: Physics, Mechanics and Astronomy",
issn = "1674-7348",
publisher = "Science in China Press",
number = "5",

}

TY - JOUR

T1 - Phase-field modeling of void evolution and swelling in materials under irradiation

AU - Li, Yulan

AU - Hu, Shenyang

AU - Sun, Xin

AU - Gao, Fei

AU - Henager, Charles H.

AU - Khaleel, Mohammad

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Void swelling is an important phenomenon observed in both nuclear fuels and cladding materials in operating nuclear reactors. In this work we develop a phase-field model to simulate void evolution and void volume change in irradiated materials. Important material processes, including the generation of defects such as vacancies and self-interstitials, their diffusion and annihilation, and void nucleation and evolution, have been taken into account in this model. The thermodynamic and kinetic properties, such as chemical free energy, interfacial energy, vacancy mobility, and annihilation rate of vacancies and interstitials, are expressed as a function of temperature and/or defect concentrations in a general manner. The model allows for parametric studies of critical void nucleus size, void growth kinetics, and void volume fraction evolutions. Our simulations demonstrated that void swelling displays a quasi-bell shape distribution with temperature often observed in experiments.

AB - Void swelling is an important phenomenon observed in both nuclear fuels and cladding materials in operating nuclear reactors. In this work we develop a phase-field model to simulate void evolution and void volume change in irradiated materials. Important material processes, including the generation of defects such as vacancies and self-interstitials, their diffusion and annihilation, and void nucleation and evolution, have been taken into account in this model. The thermodynamic and kinetic properties, such as chemical free energy, interfacial energy, vacancy mobility, and annihilation rate of vacancies and interstitials, are expressed as a function of temperature and/or defect concentrations in a general manner. The model allows for parametric studies of critical void nucleus size, void growth kinetics, and void volume fraction evolutions. Our simulations demonstrated that void swelling displays a quasi-bell shape distribution with temperature often observed in experiments.

KW - interstitials

KW - phase-field model

KW - radiation

KW - vacancies

KW - void swelling

UR - http://www.scopus.com/inward/record.url?scp=79956190249&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79956190249&partnerID=8YFLogxK

U2 - 10.1007/s11433-011-4316-y

DO - 10.1007/s11433-011-4316-y

M3 - Article

AN - SCOPUS:79956190249

VL - 54

SP - 856

EP - 865

JO - Science China: Physics, Mechanics and Astronomy

JF - Science China: Physics, Mechanics and Astronomy

SN - 1674-7348

IS - 5

ER -