Stabilization mechanism of semi-solid film simulating the cell wall during fabrication of aluminum foam

Takashi Kuwahara*, Akira Kaya, Taro Osaka, Satomi Takamatsu, Shinsuke Suzuki

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Semi-solid route is a fabrication method of aluminum foam where the melt is thickened by primary crystals. In this study, semi-solid aluminum alloy films were made to observe and evaluate the stabilization mechanism of cell walls in Semi-solid route. Each film was held at different solid fractions and holding times. In lower solid fractions, as the holding time increases, the remaining melt in the films lessens and this could be explained by Poiseuille flow. However, the decreasing tendency of the remaining melt in the films lessens as the solid fraction increases. Moreover, when the solid fraction is high, decreasing tendency was not observed. These are because at a certain moment, clogging of primary crystals occurs under the thinnest part of the film and drainage is largely suppressed. Moreover, clogging is occurring in solid fraction of 20–45% under the thinnest part of the film. Moreover, the time to occur clogging becomes earlier as the solid fraction increases.

本文言語English
論文番号333
ジャーナルMetals
10
3
DOI
出版ステータスPublished - 2020 3

ASJC Scopus subject areas

  • 材料科学(全般)
  • 金属および合金

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