亜共晶Al-Si合金の凝固組織に及ぼすりんの影響 Effect of phosphorus on solidified structure of hypoeutectic Al-Si alloys

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A series of thermal analysis and microstructural observation were carried out in order to clarify the effect of the phosphorus as a site of heterogeneous nucleation during the Al–Si hypoeutectic solidification. The solidification time become shorter by the addition of phosphorus, than that of without phosphorus. Liquidus and eutectic temperature become low with the increase of cooling rate, but the magunitude of the decrease in eutectic temperature is large in the case of phosphorus alloys free. The microstructure of eutectic silicon depends on the level of phosphorus content. The coarse needle-like silicon particles are nucleated on the AlP. The phosphorus rejected during the solidification of primary α aluminum therefore, the nucleus formation for eutectic silicon is just before eutectic solidification. If phosphorus is contained in the molten metal, the quantity of the primary crystal of α-dendrite increases, whereas it's length is short.

収録刊行物

  • 軽金属

    軽金属 47(12), 667-671, 1997-12-30

    The Japan Institute of Light Metals

参考文献:  14件中 1-14件 を表示

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各種コード

  • NII論文ID(NAID)
    10003796324
  • 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
    4367204
  • 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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