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Interface Structure and Slip Transmission in TI-49AL-3NB

Published online by Cambridge University Press:  15 February 2011

Daniel S. Schwartz  and
S. M. L. Sastry
Daniel S. Schwartz
Affiliation:
McDonnell Douglas Research Laboratories, Box 516, St. Louis, MO 63166-0516
S. M. L. Sastry
Affiliation:
McDonnell Douglas Research Laboratories, Box 516, St. Louis, MO 63166-0516
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Abstract

Two types of special grain boundaries were examined in Ti-49Al-3Nb deformed at elevated temperatures. The first can be described as a Σ=2 order-changing boundary. This boundary is faceted and results from the nucleation and growth of variants of the γ phase from the parent α phase. The second type of grain boundary is a γ/α2 interphase boundary, and transmission of slip through this type of boundary was examined. Slip transmission from γ into α2 did not produce distinct slip bands in α2,. Slip transmission from γ through α2, and into the next γ lamella was possible even when the next γ lamella was in an orientation rotated relative to the first γ lamella.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 229: Symposium Q – Structure/Property Relationships for Metal/Metal Interfaces , 1991 , 207
Copyright
Copyright © Materials Research Society 1991

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References

1. Schwartz, D. S. and Soboyejo, W. O., in Microstructure/Property Relationships in Titanium Aluminides and Alloys, Boyer, R. R., Kim, Y-W. (TMS, Warrendale, PA, in press).Google Scholar
2. Schwartz, D. S., Sastry, S. M. L., Scripta Metall. 23 1621 (1989).Google Scholar
3. Blackburn, M. J., in The Science. Technology and Application of Titanium, Jaffee, R. I., Promisel, N. E. (Pergamon Press, Oxford, UK, 1970) p. 641.Google Scholar
4. Hren, J. A. and Thomas, G., Trans. AIME 221, 308 (1963)Google Scholar
5. Pond, R. C. and Smith, D. A., Can. Metall. Q. 13, 39 (1974).Google Scholar
6. Knowles, K. M., Phil. Mag. A 46, 951 (1982).Google Scholar
7. Hug, G., Loiseau, A., and Lasalmonie, A., Phil. Mag. A 54, 47 (1986).Google Scholar