Al-Cu合金の一方向凝固におけるセル状界面発生の観察

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タイトル別名
  • The Observation of Cellular Breakdown of Unidirectional Solidification of Al-Cu Alloy
  • Al-Cu ゴウキン ノ 1ホウコウ ギョウコ ニ オケル セルジョウ カイメン ハッセイ ノ カンサツ

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説明

The interfacial transition from plane to cellular structure and the segregation pattern of Al-Cu alloys was investigated by means of a quenching method during unidirectional solidification.<BR>The following results were obtained:<BR>(1) The preferred grain boundary segregation occurred prior to the breakdown of the planar interface.<BR>(2) Small holes appeared at random on the solid-liquid interface at the beginning of the transition.<BR>(3) The holes were aligned or distributed regularly to form an elongated cell.<BR>(4) The solidification proceeded entrapping the liquid phase at the bottom of the holes and resulted in the “rosary-like” segregation.<BR>(5) The “rosary-like” segregation was also observed in hexagonal cell nodes.

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  • 日本金属学会誌

    日本金属学会誌 34 (7), 690-696, 1970

    公益社団法人 日本金属学会

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