Skip to main content Accessibility help
×
Home

Creep of Mechanically-Alloyed NiAl Containing 13 Vol % Mo or Mo2C Dispersoids

  • A. Lakki (a1) (a2) and D. C. Dunand (a3)

Abstract

Dispersion-strengthened nickel aluminide NiAl was synthesized by reactive mechanical alloying from elemental powders. The microstructure and creep properties of these materials was compared for two cases: (i) NiAl-Mo, where dispersoids are in the form of a ductile, metallic phase and (ii) NiAl- Mo2C, where the dispersoids are a brittle, ceramic phase. Also, the effect of annealing treatments which coarsened both matrix grains and dispersoids was investigated. Inhibited diffusional creep is identified as the rate-controlling creep mechanism.

Copyright

References

Hide All
1. Noebe, R. D., Bowman, R. R., and Nathal, M. V.,, Inter. Mater. Rev., 38, 193 (1993).
2. Grahle, P., Arzt, E., Acta. Mater., 45, 201 (1997).
3. Arzt, E. and Grahle, P., Acta. Mater., 46, 2717 (1998).
4. Takahashi, T. and Dunand, D. C., Mater, Sci. Eng. A, 192/193, 186 and 195 (1995).
5. Lakki, A. and Dunand, D. C., manuscript in preparation.
6. Ashby, M. F. and Ebeling, R., Trans. Met. Soc. AIME, 236, 1396 (1966).
7. Zener, C., cited by Smith, C.S., Trans. AIME 175, 15 (1949).
8. Raj, S.V. and Farmer, S. C., Metall. Mater. Trans. A, 26, 343 (1995).
9. Arzt, E., Ashby, M. F. and Verrall, R.A., Acta Metall., 31, 1977 (1983).
10. Rösler, J., Joos, R. and Arzt, E., Trans. A, 23A, 1521 (1992).
11. McLean, M., Acta Metall., 33, 545 (1985).

Creep of Mechanically-Alloyed NiAl Containing 13 Vol % Mo or Mo2C Dispersoids

  • A. Lakki (a1) (a2) and D. C. Dunand (a3)

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