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The High Temperature Behaviour of TiAl Containing Carbide Reinforcements

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Abstract

The mechanical behaviour of γ-TiAl reinforced with Ti2AIC platelets is investigated in the temperature range between 293K and 1255K. Comparison with the particle-free material of same matrix composition reveals a pronounced strengthening effect of the platelike reinforcements up to about 1000K. However, under creep loading the composite is remarkably weak. It is shown that this weakness is caused by diffusional creep along the particle/matrix interface. Modelling of this process indicates that the dimensions of the Ti2AlC particles (thickness d≈1μm, length 1≈20μm) are too small to avoid this unwanted deformation mechanism. It is concluded that thicknesses well above 10±m are needed to maintain reinforcement strengthening at high temperature in this system.

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References

  1. T. Christman, A. Needleman, S. Suresh, Acta Metall., 37 3029 (1989).

    Article  CAS  Google Scholar 

  2. G. Bao, J. W. Hutchinson, R. M. McMeeking, this symposium.

  3. W. D. Nix and T. L. Dragone, this symposium.

  4. J. J. Valencia, C. McCullough, J. Rösler, C. G. Levi, R. Mehrabian, in Solidification of Metal Matrix Composites, TMS, Warrendale, PA, 1990 (in press).

    Google Scholar 

  5. A. Loiseau and A. Lasalmonie, Mat. Sci. Eng., 67, 163 (1984).

    Article  CAS  Google Scholar 

  6. D.C. Drucker, in High Strength Materials, edited by V. F. Zackey, Wiley, New York (1965).

    Google Scholar 

  7. A. G. Evans, in Summary Report of the Summer Conference DARPA - Materials Research Council, (Ann Arbour, MI: The University of Michigan, July, 1988).

    Google Scholar 

  8. J. Rösler, J. J. Valencia, C. G. Levi, R. Mehrabian, to be published.

  9. J. J. Valencia, J. P. A. Löfvander, J. Rösler, C. G. Levi, R. Mehrabian, this symposium.

  10. J. Cadek, Creep in Metallic Materials (Elsevier, Amsterdam, 1988), p. 96.

    Google Scholar 

  11. J. M. Duva, J. Eng. Mat. Tech., 106, 317 (1984).

    Article  Google Scholar 

  12. J. Rösler, G. Bao, A. G. Evans, to be published.

  13. H. A. Lipsitt, D. Shechtman, R. E. Schafrik, Met. Trans. A, 6, 1991 (1975).

    Article  Google Scholar 

  14. B. W. Choi, Y. G. Deng, C. McCullough, B. Paden, R. Mehrabian, submitted to Acta Metall.

  15. T. Kawabata, T. Tamura, O. Izumi, in High Temperature Ordered Intermetallic Alloys IMI edited by C. T. Liu, A. I. Taub, N. S. Stoloff, C. C. Koch (Mater. Res. Soc. Proc., 133) pp. 329–334.

  16. H. Oikawa, in High Temperature Aluminides and Intermetallics, TMS, Warrendale, PA, 1990 (in press).

    Google Scholar 

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Acknowledgement

This work was sponsored by the Defense Advanced Research Projects Agency under URI Grant N00014-86-16-0753 supervised by Dr. William Barker and monitored by Dr. Steve Fishman of the Office of Naval Research.

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Authors and Affiliations

  1. Materials Department, College of Engineering, University of California, Santa Barbara, CA, 93106, USA

    J. Rösler, J. J. Valencia, C. G. Levi, A. G. Evans & R. Mehrabian

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  1. J. Rösler
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  2. J. J. Valencia
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  3. C. G. Levi
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  4. A. G. Evans
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  5. R. Mehrabian
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Rösler, J., Valencia, J.J., Levi, C.G. et al. The High Temperature Behaviour of TiAl Containing Carbide Reinforcements. MRS Online Proceedings Library 194, 241–248 (1990). https://doi.org/10.1557/PROC-194-241

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