Many-body interatomic potentials to model radiation damage in reactor pressure vessel steels and in-core components

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Abstract

We present a series of many-body interatomic potentials of use in atomistic simulations to model radiation damage in structural components of nuclear light-water reactors. A new Fe-Cu and Fe-Cu-Ni potential to represent reactor pressure vessel steels is developed. The Fe-Ni potential, developed as part of the ternary potential, can also be used in a first approximation to represent austenitic (stainless) steels, which is the material of choice for the reactor's in-core components. We emphasize that, to the best of our knowledge, our Fe-Cu-Ni potential represents the first example of a ternary many-body potential to study radiation damage. Due to the many-body character of our potential, results obtained with it are easily transferrable between different atomistic techniques, as opposed to other multi-component cohesive models currently found in the literature.

Details

Original languageEnglish
Title of host publicationProceedings of the 2nd International Youth Conference on Energetics
Place of PublicationBudapest, Hungary
Publication statusPublished - 4 Jun 2009
Event2nd International Youth Conference on Energetics - Budapest, Hungary
Duration: 4 Jun 20096 Jun 2009

Conference

Conference2nd International Youth Conference on Energetics
CountryHungary
CityBudapest
Period2009-06-042009-06-06

Keywords

  • Interatomic Potential, Atomistic Modelling, RPV steels, Fe-Cu-Ni Model Alloy

ID: 302030