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Void growth in metal under irradiation as evolution nonlinear complex dynamic system

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1 Author(s)
Pavlo Selyshchev ; Physics Department, University of Pretoria, UP, Pretoria, South Africa

Any metal under irradiation is the example of the open, nonlinear system that is far away from thermal equilibrium. A theoretical approach to the void size and defect concentration evolution in irradiated metals is developed via formalism of Poincare and as function of irradiation conditions and metal properties. Due to nonlinear feed-back, there are three qualitatively different ways of evolution which take place in the present model. Values of the void radius and defect density can monotonously or not monotonously decrease, tend to a stationary value and perform self-oscillation in accordance with model parameters and initial state. Voids growth restriction is possible by the use of void evolution peculiarities.

Published in:

Complex Systems (ICCS), 2012 International Conference on

Date of Conference:

5-6 Nov. 2012