The thermodynamics of primary crystal nucleation from liquid and amorphous alloys was studied. The maximum driving force determined the composition of the nucleus, which could be found with the parallel tangents construction. The thermodynamic properties of intermetallic compounds were also considered. It was found that the two crystalline phase showed comparable driving forces for the nucleation from the amorphous phase, due to the stabilization of liquid phase at high undercooling.
Thermodynamic modelling of crystal nucleation from liquid and amorphous alloys [Metodi di calcolo di proprietà termodinamiche per la nucleazione di cristalli da liquidi e vetri]
BARICCO, Marcello
2001-01-01
Abstract
The thermodynamics of primary crystal nucleation from liquid and amorphous alloys was studied. The maximum driving force determined the composition of the nucleus, which could be found with the parallel tangents construction. The thermodynamic properties of intermetallic compounds were also considered. It was found that the two crystalline phase showed comparable driving forces for the nucleation from the amorphous phase, due to the stabilization of liquid phase at high undercooling.
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