回転磁界型電磁撹拌場内における9%Ni鋳鋼の一方向凝固

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  • 毛利 勝一
    日立造船(株)技術研究所，現在：(株)日立造船技術研究所
  • 北沢 孝次
    日立造船(株)技術研究所，現在：(株)日立造船技術研究所

書誌事項

タイトル別名
  • Unidirectional Solidification of 9%Ni Cast Steel in Rotary Magnetic Field
  • 回転磁界型電磁攪拌場内における9%Ni鋳鋼の1方向凝固
  • カイテン ジカイガタ デンジ カクハン バナイ ニ オケル 9パーセント

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抄録

The solidification structure of 9%Ni cast steel and the effect of electro-magnetic stirring on its structure and mechanical property were examined.<BR>9%Ni molten steel was poured into an exothermic mold and was solidified unidirectionally without stirring. Using the ingot, measurements were made of the primary and secondary dendrite arm spacings. Next, 9%Ni molten steel was solidified unidirectionally in a rotary magnetic field. The relation ship between primary arm spacing(S1; μm), secondary dendrite arm spacing(S2; μm) and average cooling rates (Va; K/s) was as follows:<BR>(This article is not displayable. Please see full text pdf.) <BR>And it was also confirmed that the as-cast ductility was greatly improved by this stirring, though this cast steel grade had no ductility as cast.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 52 (7), 694-700, 1988

    公益社団法人 日本金属学会

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