Analysis of the Solidification Microstructure of Multi- Component γ-TiAl Alloys

Abstract:

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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 et al., "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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$35.00

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