Kinetics of the nucleation and growth of helium bubbles in bcc iron

Chaitanya Suresh Deo, Srinivasan G. Srivilliputhur, Michael Baskes, Stuart Maloy, Michael James, Maria Okuniewski, James Stubbins

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Microstructural defects are introduced in materials upon irradiation with energetic particles. These defects can cause degradation of mechanical properties and contribute to material failure. Transmuted helium in irradiated stainless steels exerts deleterious effects on material properties. We have performed kinetic Monte Carlo (kMC) simulations of point defect diffusion and clustering in bcc alpha iron. The model includes helium and vacancy diffusion and spontaneous clustering and dissociation of the point defects from the clusters. We employ the kMC simulations to investigate the time evolution of the point defect configuration leading to defect clustering and bubble formation. The concentration of embryonic point defect clusters is determined as a function of the simulation time.

Original languageEnglish (US)
Title of host publicationMaterials in Extreme Environments
PublisherMaterials Research Society
Pages21-26
Number of pages6
ISBN (Print)1558998861, 9781558998865
DOIs
StatePublished - 2006
Event2006 MRS Spring Meeting - San Francisco, CA, United States
Duration: Apr 20 2006Apr 21 2006

Publication series

NameMaterials Research Society Symposium Proceedings
Volume929
ISSN (Print)0272-9172

Other

Other2006 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period4/20/064/21/06

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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