純アルミニウム中におけるα-AlFeSi晶出相の球状化機構 Nodularization of α-AlFeSi compounds in pure aluminum

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It is observed that α–AlFeSi nodules during the solidification in pure aluminum. Assuming that this phase particles form in hydrogen bubbles during the solidification, the following experiments were done: 1) the observation of structures of α–AlFeSi nodules, 2) the effect of hydrogen bubbles on the formation of α–AlFeSi nodules. As a result, it became clear that the morphology of α–AlFeSi nodules, which forms during solidification is a spherical shape with a hollow shell. This structure indicates that α–AlFeSi particles nucleate on the inner wall of the hydrogen bubbles which evolve during solidification. Furthermore, the size and density of α–AlFeSi nodules changed with the cooling rate of solidification and their variations agreed with those of the hydrogen bubbles. It is considered that the above results support the hypothesis, that α–AlFeSi particles nucleate on the innner wall of hydrogen bubbles.

収録刊行物

  • 軽金属  

    軽金属 48(12), 624-628, 1998-12-30 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002665634
  • 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
    4629142
  • 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  NDL  J-STAGE 
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