Skip to main content Accessibility help
×
Home

Toughening of Intermetallics by Coated Ductile Reinforcements

  • H. E. Deve (a1), A. G. Evans (a1) and R. Mehrabian (a1)

Abstract

The effects of reinforcement debonding and work hardening on ductile reinforcement toughening of γ-TiAl have been examined. Debonding has been varied by either the development of a brittle reaction product layer or by depositing a thin oxide coating between the reinforcement and matrix. The role of work hardening has been explored by comparing Nb reinforcements that exhibits high work hardening with solution hardened Ti-Nb alloy that exhibits negligible work hardening. It is demonstrated that a high work of rupture is encouraged by extensive debonding when the reinforcement exhibits high work hardening. Conversely, debonding is not beneficial when the reinforcement exhibits low work hardening.

Copyright

References

Hide All
[1] Sigl, L. S., Evans, A. G., Mataga, P., McMeeking, R. M. and Dagleish, B. J., Acta Metall., 36 946, (1988).
[2] Ashby, M. F., Blunt, F. J. and Bannister, M., Acta Metall., 37, 1847, (1989).
[3] Cao, H. C., Dalgleish, B. J., Déve, H. E., Elliott, C., Evans, A. G., Mehrabian, R. and Odette, G. R., (in press), Acta Metall.
[4] Elliott, C. K., Odette, G. R., Lucas, G. E. and Sheckard, J. W., MRS Proceedings, vol 120, p. 95, (1988).
[5] Krstic, V. D., Phil Mag., A 48, 695, (1983).
[6] Budiansky, B., Amazigo, J. C. and Evans, A. G., J. Mech. Phys. Solids, 36 167, (1988).
[7] Evans, A. G. and McMeeking, R. M., Acta Metall., 34, 2435, (1986).
[8] Mataga, P. A., Acta Metall., (in press).
[9] Odette, G. R., Elliott, C. K., Lucas, G. E. and Sheckhard, J. W., to be published.
[10] Dalgleish, B. J., Trumble, K. and Evans, A. G., Acta Metall., 37, 1923, (1989).
[11] Dève, H.E., Evans, A.G., Odette, G.R., Mehrabian, R., Emiliani, M.L., Hecht, R., to be published.
[12] Mader, W. and Riihle, M., Acta Metall. 37, 853, (1989).
[13] Tressler, R. E., Moore, T. L. and Crane, R. L., J. of Mat. Sci., 151, (1973).
[14] Charalambides, P. G., Lund, J., Evans, A. G. and McMeeking, R. M., 1. of Appl. Mech., 56,77, (1989).
[15] Zok, F. and Hom, C., to be published.
[16] Zok, F., Jansson, S., Evans, A. G. and Nardonne, V., to be published.

Toughening of Intermetallics by Coated Ductile Reinforcements

  • H. E. Deve (a1), A. G. Evans (a1) and R. Mehrabian (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed