Model for the kinetics of cluster nucleation in irradiated materials: Application to vacancy clusters

A. M. Yacout, J. F. Stubbins

Research output: Contribution to journalArticlepeer-review

Abstract

The kinetics of point defect clustering plays an important role in the development of materials’ microstructure under irradiation. Vacancy cluster (void) formation is one such microstructural change expected under fluxes of high energy neutrons in advanced nuclear reactor applications. In this work, a theoretical model that describes the evolution of these vacancy clusters during irradiation is developed and applied to the case of 316 stainless steel. The time dependence of the size distribution of these subcritical vacancy clusters is calculated. The incubation period and approach to steady state for such clusters is illustrated. The limitations of the model in terms of the imposed boundary conditions are also discussed.

Original languageEnglish (US)
Pages (from-to)363-370
Number of pages8
JournalRadiation Effects and Defects in Solids
Volume117
Issue number4
DOIs
StatePublished - 1991

Keywords

  • clusters
  • high energy
  • irradiation
  • stainless steel
  • vacancies

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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