加工後時効処理したAl-Mg_2Si合金に現れる特異な形状の析出物 Specific precipitates in Al-Mg_2Si alloys aged after deformation

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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 degrees from the [100] or [010] orientation of the Al-matrix. These specific precipitates were only observed in Al–Mg<sub>2</sub>Si 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.

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  • 軽金属  

    軽金属 48(9), 471-475, 1998-09 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002665293
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4572347
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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