Al-Si合金による鋼の脱酸について

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タイトル別名
  • The Deoxidation of Steel with Al-Si Alloy
  • Al-Si ゴウキン ニ ヨル コウ ノ ダッサン ニ ツイテ

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抄録

The mechanism on the deoxidation of molten ironwith Al and Al-Si alloy deoxidizer was investigated by using induction furnace and Tammann furnace.<BR>The experimental results were summarized as follows.<BR>1) The deoxidation of molten iron with Al was not effective in air. But under the Ar atmosphere, the decrease of total oxygen content was remarkable.<BR>2) In the beginning of deoxidation with Al-Si alloy in air, the reaction between Al and O was much faster than the reaction between Si and O.<BR>Al was consumed immediately, but Si was remained sufficiently as soluble Si at that time. Subsequently Si reacted with oxygen in air and protected the reoxidation of molten iron by the formation of SiO2particles.<BR>3) The yield of Al in the beginning of deoxidation was increased by Si. Flake like primary a in Al-Si alloy protected Al-Si eutectic against consumption of Al, when the deoxidizer was added into molten iron.

収録刊行物

  • 鉄と鋼

    鉄と鋼 59 (3), 395-404, 1973

    一般社団法人 日本鉄鋼協会

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