INVESTIGADORES
ARES Alicia Esther
capítulos de libros
Título:
THEORY AND EXPERIMENTS OF INTERPHASE FORMATION AND STRUCTURE IN HORIZONTAL DIRECTIONALLY SOLIDIFIED ZN-AL DENDRITIC ALLOYS
Autor/es:
SERGIO FABIAN GUEIJMAN; CARLOS ENRIQUE SCHVEZOV; ALICIA ESTHER ARES
Libro:
CRYSTAL GROWTH: THEORY, MECHANISMS AND MORPHOLOGY
Editorial:
N.A. Mancuso, J. P. Isaac, Nova, Science Publishers, Inc.
Referencias:
Lugar: Hauppauge NY 11788-3619.; Año: 2012; p. 265 - 293
Resumen:
The aim of this work was to analyze the experimental formation of [liquid/
(solid+liquid)], [(solid+liquid)/(eutectic+solid+liquid)], [(eutectic+solid+liquid)/solid],
and [(solid+liquid)/solid] interphases run in binary Zn-Al dendritic alloy systems from
the chilled ends of a hemicylindrical sample. We determined the velocity and
accelerations of almost six imposed interphases, three of which moved from left to right
and three from right to left, in a horizontal setup with chilled ends. We also calculated
their velocities and accelerations from the near beginning of the creation until the instant
in which they collided with the solidification fronts imposed. Detailed analyses of their
structure, which presents the columnar-to-equiaxed transition (CET), and their
development with models of dendritic solidification, were also made. These results,
combined with the existing data, were compared with theoretical models to assess our
current understanding of the dynamics of the interphases in dendritic growth process.
This is an important subject within crystal growth science.