Abstract
A phase-field model solved with adaptive-mesh refinement was used to simulate cellular and dendritic growth in directional solidification in dilute binary alloys. The spacing of primary branches was examined for a wide range of thermal gradients and alloy compositions. It was found to undergo a maximum as a function of pulling velocity. The sharp-interface model was used to describe solidification of a dilute binary alloy with a partition coefficient k. The result confirm that the selected wavelength displays nonmonotonic behavior as a function of pulling speed.
Original language | English (US) |
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Article number | 246101 |
Journal | Physical review letters |
Volume | 93 |
Issue number | 24 |
DOIs | |
State | Published - Dec 10 2004 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy