التفاصيل البيبلوغرافية
| العنوان: |
Foam-like evolution in polycrystalline systems following successive 'melt and growth' cycles. |
| المؤلفون: |
Andewalle, N. V, Delisse, B., Ausloos, M., R.Cloots |
| المصدر: |
Philosophical Magazine B; Oct98, Vol. 78 Issue 4, p397-408, 12p, 6 Diagrams, 5 Graphs |
| مصطلحات موضوعية: |
POLYCRYSTALS, LATTICE theory |
| مستخلص: |
A stochastic model of multigrain growth which allows for successive meltinggrowth 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. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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