Microstructural changes at the initial stage of precipitation in an aluminum-silicon alloy

Keiyu Nakagawa*, Teruto Kanadani, Laurence Anthony, Hatsujiro Hashimoto

*この研究の対応する著者

研究成果: Article査読

15 被引用数 (Scopus)

抄録

In this study, we use a transmission electron microscope (TEM) to observe the microstructure of an Al-Si alloy from immediately after quenching to the initial stage of precipitation. Results reveal the presence of patches immediately after quenching that are thought to be Si clusters, and these are coherent with the {111}matrix. At the initial stage of aging, Si crystals with a plate-like structure are observed, contradicting the round shape previously described. We propose that the Si clusters that appear immediately after quenching act as nuclei for the plate-like Si crystals. As the aging time increases, these increase in length and thickness, becoming thick plate-like Si phase precipitates.

本文言語English
ページ(範囲)779-783
ページ数5
ジャーナルMaterials Transactions
46
4
DOI
出版ステータスPublished - 2005 4月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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