Paper Title:
Analysis of the Solidification Microstructure of Multi- Component γ-TiAl Alloys
  Abstract

Gamma titanium aluminide alloys often solidify peritectically and show a coarse, dendritic microstructure, which can lead to unacceptable mechanical properties in the as-cast condition. In view of the development of improved cast alloys, the dependence of the solidifying microstructure on the aluminum content and other alloying elements was investigated. The formation of the observed solidification microstructures is discussed in comparison with microstructure formation maps calculated by the NCU (nucleation and constitutional undercooling) model developed by Hunziker et al. [1].

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
1475-1480
DOI
10.4028/www.scientific.net/MSF.539-543.1475
Citation
M. Oehring, V. Küstner, F. Appel, U. Lorenz, "Analysis of the Solidification Microstructure of Multi- Component γ-TiAl Alloys", Materials Science Forum, Vols. 539-543, pp. 1475-1480, 2007
Online since
March 2007
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$32.00
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