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Processing Map and Flow Localization of a TiAl/TiB2 XD® Composite*

Published online by Cambridge University Press:  15 February 2011

D. Zhao
Affiliation:
Concurrent Technologies Corporation, 1450 Scalp Avenue, Johnstown, PA 15904, U.S.A.
P. K. Chaudhury
Affiliation:
Concurrent Technologies Corporation, 1450 Scalp Avenue, Johnstown, PA 15904, U.S.A.
M. Thirukkonda
Affiliation:
Concurrent Technologies Corporation, 1450 Scalp Avenue, Johnstown, PA 15904, U.S.A.
J. J. Valencia
Affiliation:
Concurrent Technologies Corporation, 1450 Scalp Avenue, Johnstown, PA 15904, U.S.A.
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Abstract

Isothermal compression tests were conducted on a particulate reinforced Ti-44Al–3V+7.5v/o TiB2 composite produced by the XD® process over wide ranges of temperatures and strain rates, 1050 to 1300 C and 0.001 to 1.0 s-1, respectively. Flow localization parameter analysis was performed to analyze the flow behavior of the composite under various processing conditions, and the results were compared to those by dynamic material modeling. Microstructural characterization was also conducted to correlate the flow behavior with post-deformation microstructures. With combined information on flow behavior and microstructures, the processing condition for relatively stable flow and uniform microstructure was determined to be 1300 C and 0.01 to 0.1 s-1.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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Footnotes

*

This work was conducted by the National Center for Excellence in Metalworking Technology, operated by Concurrent Technologies Corporation, under contract to the U.S. Navy as a part of the U.S. Navy Manufacturing Technology Program.

®

XD is a registered trademark of Martin Marietta, Baltimore, MD.

References

1. Kampe, S.L., Bryant, J.D., and Cristodoulou, L., Metall. Trans A, 22A, 447 (1991).Google Scholar
2. Kampe, S.L., and Cristodoulou, L., presented at TMS Fall Meeting, Cincinnati, OH, 1991 (unpublished).Google Scholar
3. Rothenflue, L., Szaruga, A., and Lipsitt, H.A., presented at TMS Fall Meeting, Cincinnati, OH, 1991 (unpublished).Google Scholar
4. Anand, K.G., Zhao, D., Valencia, J.J., and Wolff, S.J., in Application of Mechanics and Material Models to Design and Processing III, edited by Russell, E. S. (TMS, Warrendale, PA, 1992) pp. 5771.Google Scholar
5. Prasad, Y.V.R.K., et al. , “Modeling of Dynamic Material Behavior in Hot Deformation: Forging of Ti-6242”, Metall. Trans. A, 15A, 1883 (1984).Google Scholar
6. Gegel, H.L., Malas, J.C., Doraivelu, S.M., and Shede, V.A., in Metals Handbook, Vol. 14, (ASM International, Metals Park, OH, 1988), pp. 417438.Google Scholar
7. Bryant, J.D., Adams, M.L., Barrett, A.R.H., Clarke, J.A., Gaskin, G.B., Christodoulou, L., and Brupbacher, J., NASP Contractor Report 1095, Martin Marietta Laboratories, 1990.Google Scholar
8. Semiatin, S.L. and Jonas, J.J., Formability and Workability of Metals (ASM International, Metals Park, OH, 1984) p. 43.Google Scholar
9. Chaudhury, P.K. and Rack, H.J., Scripta Metall. et Mat., 26, 691 (1992).Google Scholar
10. Chaudhury, P.K. (unpublished research).Google Scholar
11. Chaudhury, P.K., Long, M. and Rack, H.J., Mater. Sci. Eng., A152, 37 (1992).Google Scholar
12. Feng, C.R., Michel, D.J. and Crowe, C.R., Scripta Metall. et Mat., 24, 1297 (1990).Google Scholar
13. Huang, S.C. and Siemers, P.A., Metall. Trans. A, 20A, 1899 (1989).Google Scholar
14. Thirukkonda, M., Chaudhury, P.K., Zhao, D., and Valencia, J.J., Harold Margolin Symp. on Micro./Prop. Rela. of Ti Alloys, TMS Spring Meeting, San Francisco, CA, 1994.Google Scholar