Multilevel Modeling of Phenomena of Irradiation-induced Swelling and Growth of Materials with Close-packed Structure

Journal Article · Thu Apr 10 00:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2918097· OSTI ID:21137053

Panin, V E; Moiseenko, D D; Zhevlakov, A L; Maksimov, P V ^[1]; Chernov, V M ^[2]

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1. Instutute of Strength Physics and Materials Science SB RAS, 634021 Tomsk (Russian Federation)
2. A.A. Bochvar All-Russian Research Institute of Inorganic Materials, 123060 Moscow, P.O. Box 369 (Russian Federation)

A thermodynamic method of excited cellular automata is put forward for modeling mass transfer in an open multilevel system 'surface layer - interface with chessboard-like distribution of normal tensile and compressive stresses - substrate with stochastic distribution of atomic nanoclusters having excess atomic volume'. Under excess pressure in the bulk of the irradiated material one can see the formation of nanocluster flows along the conjugate directions of maximum tangential stresses. The outward material extrusion takes place in the local interface zones with normal tensile stresses. Such processes should underlie the swelling and growth of irradiated materials with close-packed structure.

• OSTI ID: 21137053
• Journal Information: AIP Conference Proceedings, Vol. 999, Issue 1; Conference: EMMM-2007: International conference on electron microscopy and multiscale modeling, Moscow (Russian Federation), 3-7 Sep 2007; Other Information: DOI: 10.1063/1.2918097; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTAL STRUCTURE
DISTRIBUTION
INTERFACES
IRRADIATION
LAYERS
MASS TRANSFER
NANOSTRUCTURES
PLASTICITY
RADIATION EFFECTS
STOCHASTIC PROCESSES
STRESSES
SUBSTRATES
SURFACES
SWELLING
THERMODYNAMICS