Specific precipitates in Al-Mg2Si alloys aged after deformation

Kenji Matsuda*, Hiroshi Gamada, Yasuhiro Uetani, Sciichi Rengakuji, Fujio Shinagawa, Susumu Ikeno

*この論文の責任著者

研究成果: ジャーナルへの寄稿学術論文査読

17 被引用数 (Scopus)

抄録

Precipitation behavior in Al-Mg-Si alloy artificially aged after mechanical deformation, was investigated by high resolution transmission electron microscopy (HRTEM ). Small particles ≃1.0 nm in diameter were observed together with dislocation lines after short aging treatment. They were arranged along the dislocation like a string of beads. The precipitates which appeared after peak aging, were lath-shaped and their longitudinal orientations were parallel to the [001] of the Al-matrix. Cross sectional observation revealed that the transverse orientation of the precipitate was deviated 10 degree from the [100] or [010] orientation of the Al-matrix. These specific precipitates were only observed in Al-Mg2Si specimen annealed after deformation, but not in the specimen simply annealed. With the aging time, the specific precipitates disappeared and β phase particles became dominant.

本文言語英語
ページ(範囲)471-475
ページ数5
ジャーナルKeikinzoku/Journal of Japan Institute of Light Metals
48
9
DOI
出版ステータス出版済み - 1998/09

ASJC Scopus 主題領域

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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