Phase-Field Simulation of Double Dendritic Growth in Solidification of Binary Alloy with Forced Convection

Abstract:

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A phase-field approach which incorporates mass and momentum and solute conservation equations for simulation of Al-Cu binary alloy solidification is studied. The effect of force convection on the double dendrite growth and solute profile during the solidification of binary alloy were investigated. The results indicate that dendritic grows unsymmetrically under a forced flow, the growth velocity of the upstream tip is faster than the downstream tip. The downstream tip of the first dendrite and the upstream tip of the second dendrite are influenced each other, the upstream tip of the second dendrite will Coarsen, and the concentration at the boundary between them is the highest. Moreover, the interaction between the two dendrites is more and more obvious with the increasing of the flow speed.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

1421-1425

DOI:

10.4028/www.scientific.net/AMR.189-193.1421

Citation:

Q. Liu et al., "Phase-Field Simulation of Double Dendritic Growth in Solidification of Binary Alloy with Forced Convection", Advanced Materials Research, Vols. 189-193, pp. 1421-1425, 2011

Online since:

February 2011

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Price:

$35.00

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