Artículos de revistas
Inverse segregation during transient directional solidification of an Al-Sn alloy: Numerical and experimental analysis
Registro en:
Materials Chemistry And Physics. Elsevier Science Sa, v. 115, n. 1, n. 116, n. 121, 2009.
0254-0584
WOS:000264841900021
10.1016/j.matchemphys.2008.11.037
Autor
Cruz, KS
Ferreira, IL
Spinelli, JE
Cheung, N
Garcia, A
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) In this article macrosegregation phenomenon is investigated by a finite volume numerical modeling technique and by upward unidirectional solidification of an Al-23 wt%Sn alloy casting. The numerical model consists of an explicit/implicit time integration scheme to couple thermal and solutal fields. The experimental solidification set-up allows a vertically aligned macrostructure to be obtained. The concentration profile was obtained by an X-ray fluorescence spectrometry technique carried out in cylindrical slices representing certain position inside the casting from the casting/chill interface. The simulated and experimental temperature and concentration profiles are compared and very good agreement has been observed. (C) 2008 Elsevier B.V. All rights reserved. 115 1 116 121 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAEPEX-UNICAMP Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)