Paper Title:
Influence of Rapid Shear-Rate Changes on Microstructure Formation during Semi-Solid Processing
  Abstract

The solidification behavior of the semi-solid slurry with rapid shear-rate changes was investigated by using succinonitrile-5at.%water transparent alloy and Sn-15wt.%Pb alloy on a self-made apparatus. The results showed that the rapid changes of shear-rate improved the nucleation and promoted the globular growth of solidification microstructure in the stirred melt. The increase of shear-rate was in favor of promoting the grain growth with globular shape to a certain extent, however, when the shear-rate was beyond a critical value, the further increase of the shear-rate will lead the disappearance of the globular crystals. Thus, the microstructure of semi-solid processing could be refined by a controlled stirring process.

  Info
Periodical
Solid State Phenomena (Volumes 116-117)
Edited by
C.G. Kang, S.K. Kim and S.Y. Lee
Pages
155-158
DOI
10.4028/www.scientific.net/SSP.116-117.155
Citation
X. Lin, T. Li, W. D. Huang, "Influence of Rapid Shear-Rate Changes on Microstructure Formation during Semi-Solid Processing", Solid State Phenomena, Vols. 116-117, pp. 155-158, 2006
Online since
October 2006
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Price
$32.00
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