Influence of rapid shear-rate changes on microstructure formation during semi-solid processing

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationSemi-Solid Processing of Alloys and Composites - Proceedings of the 9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006
PublisherTrans Tech Publications Ltd
Pages155-158
Number of pages4
ISBN (Print)3908451264, 9783908451266
DOIs
StatePublished - 2006
Event9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006 - Busan, Korea, Republic of
Duration: 11 Sep 200613 Sep 2006

Publication series

NameSolid State Phenomena
Volume116-117
ISSN (Print)1012-0394

Conference

Conference9th International Conference on Semi-Solid Processing of Alloys and Composites, S2P 2006
Country/TerritoryKorea, Republic of
CityBusan
Period11/09/0613/09/06

Keywords

  • Microstructure
  • Semi-solid processing
  • Shear

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