Paper Title:
Eutectic Solidification of Ternary Al-Cu-Ag Alloys: Coupled Growth of α(Al) and Al2Cu in Univariant Reaction
  Abstract

Coupled, regular eutectic growth of α(Al) and Al2Cu from ternary Al-Cu-Ag liquid alloys is investigated with focus on the formation and the characteristics of eutectic cells in unidirectionally solidified, polycrystalline, bulk samples. The topologic anisotropy of the lamellar eutectic leads to destabilization along the lamellae with elongated cells being intermediate to stable cells, irrespective of the crystallographic orientation of the phases. The formation of stable cellular patterns with elongated or regular cell structure is explained with reference to the crystal orientation of the phases α(Al) and Al2Cu, measured by electron backscatter diffraction (EBSD).

  Info
Periodical
Edited by
A Roósz, M. Rettenmayr and Z. Gácsi
Pages
57-62
DOI
10.4028/www.scientific.net/MSF.508.57
Citation
U. Hecht, V. T. Witusiewicz, A. Drevermann, B. Böttger, S. Rex, "Eutectic Solidification of Ternary Al-Cu-Ag Alloys: Coupled Growth of α(Al) and Al2Cu in Univariant Reaction", Materials Science Forum, Vol. 508, pp. 57-62, 2006
Online since
March 2006
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