Monte Carlo simulations for BCC alloys under irradiation: phase stability and microstructural evolutions

F. Soisson, P. Bellon, A. Barbu, G. Martin

Research output: Contribution to journalConference articlepeer-review

Abstract

When a compound is maintained in far for equilibrium configurations by nuclear collisions under irradiation, the steady-state properties of the system can no longer be predicted from equilibrium thermodynamics. Here we propose Monte Carlo simulations for addressing the question of phase stability under irradiation. They are based on a kinetic model with two dynamics acting in parallel: thermally activated jumps of vacancies and ballistic events induced by nuclear collisions. Two transformations are studied: the A2-B2 order-disorder transition and the precipitation of copper in iron. In the former case a shift from second to first order of the A2-B2 transition, predicted by the model, has been experimentally checked by 1 MeV electron irradiations of a FeAl alloy. In the latter case, the precipitation kinetics are determined by Monte Carlo simulations and are found to be in very good agreement with available experimental data.

Original languageEnglish (US)
Pages (from-to)89-94
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume373
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1994 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 28 1994Nov 30 1994

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Monte Carlo simulations for BCC alloys under irradiation: phase stability and microstructural evolutions'. Together they form a unique fingerprint.

Cite this