Multiscale modeling study of pulsed damage accumulation in α-Fe under inertial fusion conditions

J. M. Perlado; D. Lodi; E. Domínguez; J. Prieto; M. J. Caturla; Tomas Díaz de la Rubia

doi:10.1016/S0022-3115(02)01018-8

Multiscale modeling study of pulsed damage accumulation in α-Fe under inertial fusion conditions

J. M. Perlado
, D. Lodi
, E. Domínguez
, J. Prieto
, M. J. Caturla
, Tomas Díaz de la Rubia

Research output › peer-review

Abstract

Reduced activation ferritic-martensitic (RAFM) steels are being considered as candidate materials for the first structural wall of a future fusion reactor, due to their high resistance to neutron irradiation. A combination of molecular dynamics and kinetic Monte Carlo has been utilized to analyze and assess the change and evolution of the microstructure in irradiated α-Fe, the main component of RAFM steels. We discuss how the pulse frequency, 1 and 10 Hz, may affect the damage production and accumulation. Dose rates of 0.1 and 0.01 dpa/s will be considered in order to represent the damage suffered by a protected first structural wall. These results will be compared with previous work on the subject and with those achieved with continuous irradiation at similar average dose rate.

Original language	English
Pages (from-to)	907-911
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	307-311
Issue number	Part 2
DOIs	https://doi.org/10.1016/S0022-3115(02)01018-8
State	Published - Dec 2002

ASJC Scopus subject areas

Nuclear and High Energy Physics
General Materials Science
Nuclear Energy and Engineering

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Cite this

@article{1f242544524b4c1e843c954334a7fee9,

title = "Multiscale modeling study of pulsed damage accumulation in α-Fe under inertial fusion conditions",

abstract = "Reduced activation ferritic-martensitic (RAFM) steels are being considered as candidate materials for the first structural wall of a future fusion reactor, due to their high resistance to neutron irradiation. A combination of molecular dynamics and kinetic Monte Carlo has been utilized to analyze and assess the change and evolution of the microstructure in irradiated α-Fe, the main component of RAFM steels. We discuss how the pulse frequency, 1 and 10 Hz, may affect the damage production and accumulation. Dose rates of 0.1 and 0.01 dpa/s will be considered in order to represent the damage suffered by a protected first structural wall. These results will be compared with previous work on the subject and with those achieved with continuous irradiation at similar average dose rate.",

keywords = "Reduced Activation Ferritic/Martensitic (RAFM) steels, Kinetic Monte Carlo (KMC), Inertial fusion, Pulsed damage, Multiscale modeling",

author = "Perlado, \{J. M.\} and D. Lodi and E. Dom{\'i}nguez and J. Prieto and Caturla, \{M. J.\} and \{D{\'i}az de la Rubia\}, Tomas",

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language = "English",

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TY - JOUR

T1 - Multiscale modeling study of pulsed damage accumulation in α-Fe under inertial fusion conditions

AU - Perlado, J. M.

AU - Lodi, D.

AU - Domínguez, E.

AU - Prieto, J.

AU - Caturla, M. J.

AU - Díaz de la Rubia, Tomas

PY - 2002/12

Y1 - 2002/12

N2 - Reduced activation ferritic-martensitic (RAFM) steels are being considered as candidate materials for the first structural wall of a future fusion reactor, due to their high resistance to neutron irradiation. A combination of molecular dynamics and kinetic Monte Carlo has been utilized to analyze and assess the change and evolution of the microstructure in irradiated α-Fe, the main component of RAFM steels. We discuss how the pulse frequency, 1 and 10 Hz, may affect the damage production and accumulation. Dose rates of 0.1 and 0.01 dpa/s will be considered in order to represent the damage suffered by a protected first structural wall. These results will be compared with previous work on the subject and with those achieved with continuous irradiation at similar average dose rate.

AB - Reduced activation ferritic-martensitic (RAFM) steels are being considered as candidate materials for the first structural wall of a future fusion reactor, due to their high resistance to neutron irradiation. A combination of molecular dynamics and kinetic Monte Carlo has been utilized to analyze and assess the change and evolution of the microstructure in irradiated α-Fe, the main component of RAFM steels. We discuss how the pulse frequency, 1 and 10 Hz, may affect the damage production and accumulation. Dose rates of 0.1 and 0.01 dpa/s will be considered in order to represent the damage suffered by a protected first structural wall. These results will be compared with previous work on the subject and with those achieved with continuous irradiation at similar average dose rate.

KW - Reduced Activation Ferritic/Martensitic (RAFM) steels

KW - Kinetic Monte Carlo (KMC)

KW - Inertial fusion

KW - Pulsed damage

KW - Multiscale modeling

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