Neutron computed tomography of phase separation structures in solidified Cu[sbnd]Co alloys and investigation of relationship between the structures and melt convection during solidification

Eita Shoji, Shosei Isogai, Rikuto Suzuki, Masaki Kubo, Takao Tsukada, Tetsuya Kai, Takenao Shinohara, Yoshihiro Matsumoto, Hiroyuki Fukuyama

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The effect of melt convection on the phase separation structures in undercooled Cu[sbnd]Co alloys was investigated using the electromagnetic levitation technique, where the melt convection was controlled by applying a static magnetic field. The three-dimensional phase separation structures of the solidified Cu[sbnd]Co alloys were first observed using neutron computed tomography. A large number of small spherical Co-rich phases were dispersed in the Cu-rich phase matrix when the static magnetic field was relatively small. In contrast, several coalesced Co-rich phases, which were elongated along the direction of the static magnetic field, appeared in the higher strength of static magnetic field.

Original languageEnglish
Pages (from-to)29-32
Number of pages4
JournalScripta Materialia
Volume175
DOIs
Publication statusPublished - 2020 Jan 15

Keywords

  • Coarsening
  • Convection
  • Copper alloys
  • Peritectic solidification
  • Phase separation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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