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Growth and Facet Orientations in Single-Phase TiAl Single Crystals

Published online by Cambridge University Press:  22 February 2011

R. Mahapatra
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015 Naval Air Warfare Center, Warminster, PA 18974–5000
H. Lin
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104
D. P. Pope
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104
Y. T. Chou
Affiliation:
Department of Materials Science and Engineering, Lehigh University, Bethlehem, PA 18015
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Abstract

Single crystals of single-phase TiAl alloy (Ti-56 at. % Al) have been grown at lOmm/h solidification rate in an ASGAL FZ-SS35W Optical Floating Zone Furnace. The orientations of the resulting single crystals have been determined using the Laue X-ray diffraction, and Electron Backscattering Pattern (EBSP) methods. A correlation between orientations of the crystal growth and grown-in facets has been established.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

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