6063アルミニウム合金鋳塊におけるAl-Fe-Si系晶出相の種類に及ぼす冷却速度の影響 Effect of cooling rate on the occurrence of Al-Fe-Si intermetallic phases in 6063 aluminum alloy ingots

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The effect of cooling rate on the occurrence of Al–Fe–Si intermetallic compound phases in 6063 aluminum alloy was investigated in the as-cast state using X-ray diffraction and transmission electron microscopy (TEM). The four alloys containing 0.1 to 0.5 mass%Fe were melted and then cooled at three cooling rates ranging from 0.06 to 5 K/s, and the Al–Fe–Si compound particles were extracted from the alloy ingots using the thermal phenol method. With increasing cooling rate, the amount of a skeleton-shaped α phase increased irrespective of iron content and that of the β phase decreased. When the iron content increased over 0.2%, the amount of the β phase decreased at the intermediate cooling rate (5 K/s). When the iron content decreased from 0.2 to 0.1%, the amount of the β phase also decreased and the α' phase co-existed. As a result, at a typical Fe content, i.e., 0.2%Fe, in commercial 6063 alloys, the β phase was most frequently formed in comparison with other Fe content, and became the main phase even at the intermediate cooling rate (5 K/s) which was roughly equal to that for the commercial ingots.

収録刊行物

  • 軽金属

    軽金属 47(12), 661-666, 1997-12-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003796306
  • 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
    4367203
  • 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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