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Microstructures and Properties of Refractory Metal-Silicide Eutectics

Published online by Cambridge University Press:  15 February 2011

B. P. Bewlay,
K-M. Chang,
J. A. Sutliff and
M. R. Jackson
B. P. Bewlay
Affiliation:
G.E.-C.R.D, Schenectady, N.Y. 12301
K-M. Chang
Affiliation:
G.E.-C.R.D, Schenectady, N.Y. 12301
J. A. Sutliff
Affiliation:
G.E.-C.R.D, Schenectady, N.Y. 12301
M. R. Jackson
Affiliation:
G.E.-C.R.D, Schenectady, N.Y. 12301
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Abstract

New materials with improved high temperature properties are required for higher efficiency gas turbines. One group of alloys which show promise in this area are the eutectic systems Cr-Cr3Si, Nb-Nb3Si, and V-V3Si. Crystals of these refractory metalsilicide eutectics were directionally solidified using Czochralski crystal growth in conjunction with cold crucible levitation melting. The crystals were examined using scanning electron microscopy and transmission electron microscopy. In the present paper, these systems are examined with respect to the directionally solidified eutectic microstructures, phase equilibria, crystallography and mechanical properties.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 273: Symposium Q – Intermetallic Matrix Composites II , 1992, 417
Copyright
Copyright © Materials Research Society 1992

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References

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