非脱ガス処理鋼の連続鋳造における水素起因ブレークアウトの解析

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書誌事項

タイトル別名
  • Hydrogen-induced Breakout in Continuous Casting of Non-degassed Steel
  • ヒダツガス ショリコウ ノ レンゾク チュウゾウ ニ オケル スイソ キイン ブレークアウト ノ カイセキ

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抄録

Hydrogen-induced sticker breakouts in aluminum-killed steel production without a degassing route have often been reported elsewhere, but so far, yet the mechanism has not been thoroughly explained quantitatively. In order to obtain a better understanding of this phenomenon, hydrogen gas evolution from the solidified shell at the early stage of solidification in continuous casting was analyzed, taking into account the δ→γ transformation. It is concluded that lower hydrogen contents, lower casting speeds and higher consumption rates of mold powder are preferable to prevent the hydrogen-induced breakouts of aluminum-killed non-degassed steel.

収録刊行物

  • 鉄と鋼

    鉄と鋼 98 (10), 526-533, 2012

    一般社団法人 日本鉄鋼協会

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