The Observation of Cellular Breakdown of Unidirectional Solidification of Al-Cu Alloy

DOI Web Site Web Site 1 Citations
  • Sato Tamotsu
    Department of Metal Processing, Faculty of Engineering, Tohoku University
  • Ohira Goro
    Department of Metal Processing, Faculty of Engineering, Tohoku University

Bibliographic Information

Other Title
  • Al-Cu合金の一方向凝固におけるセル状界面発生の観察
  • 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

Search this article

Abstract

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.

Journal

Citations (1)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top