1998 • In Philosophical Magazine. B, Physics of Condensed Matter. Statistical Mechanics, Electronic, Optical and Magnetic Properties, 78 (4), p. 397-408
[en] A stochastic model of multigrain growth which allows for successive melting-growth cycles is investigated on a square lattice. Two fundamental constraints are introduced: (i) the melted mass amplitude and (ii) the number of cycles guide the process. The evolution of the microstructure is found to be quite similar to foam systems, i.e. topological rearrangements are observed together with the increase of the-mean grain area. A drastic crossover between two types of growth regimes is found as a function of the amplitude of the melting-growth cycles. This allows one to envisage the existence of optimal conditions for polycrystal processing.
Disciplines :
Physics
Author, co-author :
Vandewalle, Nicolas ; Université de Liège - ULiège > Département de physique > Physique statistique
Delisse, B.
Ausloos, Marcel ; Université de Liège - ULiège > Département de physique > Physique statistique appliquée et des matériaux - S.U.P.R.A.S.
Cloots, Rudi ; Université de Liège - ULiège > Département de chimie (sciences) > Chimie inorganique structurale - Doyen de la Faculté des Sciences
Language :
English
Title :
Foam-like evolution in polycrystalline systems following successive 'melt and growth' cycles
Publication date :
October 1998
Journal title :
Philosophical Magazine. B, Physics of Condensed Matter. Statistical Mechanics, Electronic, Optical and Magnetic Properties
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