Numéro
J. Phys. IV France
Volume 03, Numéro C7, Novembre 1993
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés
Page(s) C7-1977 - C7-1979
DOI http://dx.doi.org/10.1051/jp4:19937316
The 3rd European Conference on Advanced Materials and Processes
Troisiéme Conférence Européenne sur les Matériaux et les Procédés Avancés

J. Phys. IV France 03 (1993) C7-1977-C7-1979

DOI: 10.1051/jp4:19937316

Steady-states and microstructural evolutions in driven systems

P. BELLON, F. SOISSON and G. MARTIN

S.R.M.P., Centre d'Etudes de Saclay, 91191 Gif-sur-Yvette, France


Abstract
There are many cases of practical interest where ordered intermetallic compounds or concentrated alloys are maintained in non-equilibrium conditions by some external dynamical forcing : such is the case for alloys under irradiation, under high energy bal1 milling or under cyclic fatigue. Phase equilibria in such systems cannot be assessed from equilibrium thermodynamics. We briefly review here different approaches based on kinetic descriptions for handling the question of phase stability in these systems, and showing that these methods are also appropriate for following diffusion-controlled microstructural evolutions in systems, either sustained in a non-equilibrium state or during a relaxation toward an equilibrium state.



© EDP Sciences 1993