Self-similar microstructural evolution of dendritic solid-liquid mixtures during coarsening

J. L. Fife*, Peter W Voorhees

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The microstructural evolution of equiaxed dendritic Al-Cu microstructures of two different solid volume fractions (46% and 72%) during isothermal coarsening was studied. We found that the microstructures evolved self-similarly, both morphologically and topologically, while the inverse specific surface area increased as the cube root of time. The differences in scaled morphologies and topologies could be attributed to the difference in solid volume fraction, with the higher volume fraction sample exhibiting a more compact interface shape distribution and a smaller scaled genus.

Original languageEnglish (US)
Pages (from-to)839-842
Number of pages4
JournalScripta Materialia
Volume60
Issue number10
DOIs
StatePublished - May 1 2009

Keywords

  • Aluminum-copper
  • Dendritic growth
  • Equiaxed microstructure
  • Self-similar coarsening

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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