Artículos de revistas
Primary dendrite arm spacing during transient directional solidification of Al alloys with low redistribution coefficients
Registro en:
Philosophical Magazine Letters. Taylor & Francis Ltd, v. 89, n. 12, n. 779, n. 786, 2009.
0950-0839
WOS:000271570700004
10.1080/09500830903292338
Autor
Spinelli, JE
Cruz, KS
Cante, MV
Garcia, A
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Particular analytical expressions based on a curve fitting on numerical results for primary dendritic growth have been proposed in the literature to encompass binary alloy systems whose redistribution coefficient (k(0)) approaches zero. To date, these expressions have not been checked against experimental results of transient solidification. The present study developed a comparative analysis between the theoretical predictions furnished by such expressions and results from transient solidification experiments with low k(0) aluminum alloys. The analysis has shown that the proposed approach generally describes the primary dendritic spacing during solidification of Al-Sn alloys which are characterized by very low k(0) values as well as by very large solidification ranges. 89 12 779 786 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)