Crossover scaling of wavelength selection in directional solidification of binary alloys

Michael Greenwood, Mikko Haataja, Nikolas Provatas

Research output: Contribution to journalArticle

60 Scopus citations

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 languageEnglish (US)
Article number246101
JournalPhysical review letters
Volume93
Issue number24
DOIs
StatePublished - Dec 10 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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