Neutron computed tomography of phase separation structures in solidified CuCo alloys and investigation of relationship between the structures and melt convection during solidification. (15th January 2020)

• Record Type: Journal Article
• Authors: Shoji, Eita; Isogai, Shosei; Suzuki, Rikuto; Kubo, Masaki; Tsukada, Takao; Kai, Tetsuya; Shinohara, Takenao; Matsumoto, Yoshihiro; Fukuyama, Hiroyuki
• Is Part Of: Scripta materialia. Number 175(2020)
• Page Start: 29
• Page End: 32
• Publication Date: 2020-01-15
• Subjects: Phase separation -- Copper alloys -- Peritectic solidification -- Convection -- Coarsening; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2019.08.041
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: The effect of melt convection on the phase separation structures in undercooled CuCo 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 CuCo 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. Graphical abstract: Unlabelled Image