Effect of bubbling on the primary silicon in hypereutectic Al-Si alloy

J. P. Choi, S. J. Lee, E. P. Yoon, W. Y. Yoon, M. H. Kim, K. H. Kim

Research output: Contribution to journalConference article

3 Citations (Scopus)

Abstract

This paper investigates the effect of bubble on the primary Si size in Al-18wt.%Si alloy. The primary Si size observed was varied with bubble size and bubbling time in bubble process. The effect of the holding temperature of the melt in bubbling process was also investigated. In water model, as the injecting bubble size decreases, the residual bubble size in the water decreases and the residual bubble conservation time in the water increases. Also in the experiment of Al melt, the primary Si size decreases, as the injecting bubble size decreases and as the bubble processing time increases. Pore was observed at the center of primary Si. This pore was observed at many Si phases. So, this experiment suggests that the bubble can be used as nucleation sites of primary Si.

Original languageEnglish
Pages (from-to)153-156
Number of pages4
JournalMaterials Science Forum
Volume449-452
Issue numberI
DOIs
Publication statusPublished - 2004
EventDesigning, Processing and Properties of Advanced Engineering Materials: Proceedings on the 3rd International Symposium on Designing, Processing and Properties of Advanced Engineering Materials - Jeju Island, Korea, Republic of
Duration: 2003 Nov 52003 Nov 8

Keywords

  • Aluminum
  • Bubbling
  • Hypereutectic
  • Nucleation
  • Silicon

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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