Description of Recalescence in Bulk Undercooled Alloys

Abstract:

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Assuming phenomenological thermal flow balance and solute conservation, a numerical model was proposed for recalescence in bulk undercooled alloy. During the calculation, the evolution of residual melt temperature and concentration is solved as function of the transformed solid fraction. After quantitative thermodynamic calculations, a transition from non-equilibrium to equilibrium process can be described by the change of liquid/solid Gibbs energy difference. The proposed model has been applied to Cu-Ni solid solution and Fe-B hypereutectic alloy. The predicted post-recalescence temperature TR agrees well with the experimental results.

Info:

Periodical:

Advanced Materials Research (Volumes 97-101)

Edited by:

Zhengyi Jiang and Chunliang Zhang

Pages:

995-998

DOI:

10.4028/www.scientific.net/AMR.97-101.995

Citation:

W. Yang et al., "Description of Recalescence in Bulk Undercooled Alloys", Advanced Materials Research, Vols. 97-101, pp. 995-998, 2010

Online since:

March 2010

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Price:

$35.00

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