To model the behaviour under irradiation of a B.C.C. alloy presenting the B2-A2 order-disorder transition, we propose a mean-field approximation of a kinetic model with two atomic exchange mechanisms acting in parallel : thermally activated and forced jumps. By integration of deterministic evolution equations, we show that irradiation can induce the stabilization of a two-phase alloy, while the classical equilibrium phase diagram only displays single phase fields (the B2-A2 transition is second order). Steady-state diagrams are computed : in the two-phase region, antiphase boundaries are found to be unstable with respect to the disordered solid solution and smaller precipitates shrink to the benefit of the larger ones. The different dissolu...
Kinetic Monte Carlo simulations were used to determine the steady states of equiatomic bcc alloys wi...
International audienceAlmost forty years after Turings seminal paper on patterning, progress on mode...
Anticiper l’évolution de la microstructure d’un matériau en condition d’usage est d’une importance c...
It is of dramatic matter for industry to be able to predict the evolution of material microstructure...
Un composé en cours de broyage subit en parallèle une succession de déformations (qui le désordonnen...
We present a comprehensive study of voids formation, nucleation and growth in a prototype model of b...
International audienceA phase-field model allowing to describe dislocation climb under irradiation i...
International audienceIn this work, we derive an analytical model to predict the appearance of all p...
La prévision de l'évolution de la microstructure au cours du vieillissement par irradiation des maté...
Dans ce travail, nous avons amélioré un modèle de diffusion des défauts ponctuels (lacunes et inters...
International audienceMost of the phase transformations modifying the microstructure, thereby the m...
International audienceWe present a multi-scale phase field modeling of stationary microstructures pr...
Kinetic Monte Carlo simulations were used to determine the steady states of equiatomic bcc alloys wi...
International audienceAlmost forty years after Turings seminal paper on patterning, progress on mode...
Anticiper l’évolution de la microstructure d’un matériau en condition d’usage est d’une importance c...
It is of dramatic matter for industry to be able to predict the evolution of material microstructure...
Un composé en cours de broyage subit en parallèle une succession de déformations (qui le désordonnen...
We present a comprehensive study of voids formation, nucleation and growth in a prototype model of b...
International audienceA phase-field model allowing to describe dislocation climb under irradiation i...
International audienceIn this work, we derive an analytical model to predict the appearance of all p...
La prévision de l'évolution de la microstructure au cours du vieillissement par irradiation des maté...
Dans ce travail, nous avons amélioré un modèle de diffusion des défauts ponctuels (lacunes et inters...
International audienceMost of the phase transformations modifying the microstructure, thereby the m...
International audienceWe present a multi-scale phase field modeling of stationary microstructures pr...
Kinetic Monte Carlo simulations were used to determine the steady states of equiatomic bcc alloys wi...
International audienceAlmost forty years after Turings seminal paper on patterning, progress on mode...
Anticiper l’évolution de la microstructure d’un matériau en condition d’usage est d’une importance c...