SiC粒子分散型Al-1%Mg_2Si合金複合材料の時効析出挙動 Age-precipitation behavior in SiC particla dispersed Al-1 mass%Mg_2Si alloy composite materials

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抄録

Aging process of SiC particle dispersed Al–lmass%Mg<sub>2</sub>Si alloy composite materials was investigated by micro-Vickers hardness measurement and transmission electron microscope observation. In the SiC particle dispersed composite materials, preferential precipitates on dislocations which had been introduced during quenching after solid solution treatment are observed. The age hardenability slightly decreased as compared with that of the matrix alloy. At peak aged condition of composite materials, most of the precipitates have the structure that is characteristic by parallelogram shaped arrays of bright dots with the intervals of 0.77 and 0.67 nm. The arrays of bright dots of the precipitates also posses an adjacent interior angle of 75 degrees. At over aged conditions, one kind of intermediate precipitates, the type–C precipitate having the lattice parameter of a=1.04 nm and c=0.405 nm are observed at relatively higher frequencies corresponding to the tendency of the type–C precipitates to precipitate preferentially on the dislocation.

収録刊行物

  • 軽金属

    軽金属 47(10), 527-532, 1997-10-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003795977
  • 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
    4324278
  • 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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