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Assessment of Microalloying Effects on the High Temperature Fatigue Behavior of NiAl

Published online by Cambridge University Press:  22 February 2011

R. D. Noebe ,
B. A. Lerch ,
K. Bhanu  and
Sankara Rao
R. D. Noebe
Affiliation:
NASA Lewis Research Center, Cleveland, OH 44135
B. A. Lerch
Affiliation:
NASA Lewis Research Center, Cleveland, OH 44135
K. Bhanu
Affiliation:
NASA Lewis Research Center, Cleveland, OH 44135
Sankara Rao
Affiliation:
NRC Associate, NASA-LeRC
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Abstract

Binary NiAl suffers from a lack of strength and poor creep properties at and above 1000 K. Poor creep resistance in turn affects low cycle fatigue (LCF) lives at low strain ranges due to the additional interactions of creep damage. One approach for improving these properties involves microalloying with either Zr or N. As an integral part of a much larger alloying program the low cycle fatigue behavior of Zr and N doped nickel aluminides produced by extrusion of prealloyed powders has been investigated. Strain controlled LCF tests were performed in air at 1000 K. The influence of these microalloying additions on the fatigue life and cyclic stress response of polycrystalline NiAl are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 291
Copyright
Copyright © Materials Research Society 1995

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References

1. Miracle, D.B., Acta Metall. Mater. 39, 649 (1993).Google Scholar
2. Noebe, R.D., Bowman, R.R. and Nathal, M.V., Inter. Mater. Rev. 38, 193 (1993).Google Scholar
3. Darolia, R., JOM 43 (3), 44 (1991).Google Scholar
4. Liu, C.T. and Kumar, K.S., JOM 45(5), 38 (1993).Google Scholar
5. Darolia, R., Lahrman, D. and Field, R.D., Scripta Metall. Mater. 26, 1007 (1992).Google Scholar
6. Noebe, R.D. and Behbehani, M.K., Scripta Metall. Mater. 27, 1795 (1992).Google Scholar
7. Locci, I.E., Dickerson, R., Bowman, R.R., Whittenberger, J.D., Nathal, M.V., and Darolia, R., in High Temperature Ordered Intermetallic Alloys V, eds. Baker, I. et al., Vol. 288, Materials Research Society, Pittsburgh, PA, pp. 685–690 (1993).Google Scholar
8. Walston, W.S., Field, R.D., Dobbs, J.R., Lahrman, D.F., and Darolia, R., in International Symposium on Structural Intermetallics, eds. Darolia, R. et al., TMS, Warrendale, PA, pp. 523–532 (1993).Google Scholar
9. Whittenberger, J.D. and Noebe, R.D., submitted to Metall. Mater. Trans. A, (1995).Google Scholar
10. Whittenberger, J.D., Noebe, R.D. and Wheeler, D R., to be published in High Temperature Ordered Intermetallic Alloys VI, eds. Horton, J. et al., Materials Research Society, Pittsburgh, PA, (1995).Google Scholar
11. Noebe, R.D. and Garg, A, Scripta Metall. Mater. 30, 815 (1994).Google Scholar
12. Bowman, R.R., Noebe, R.D., Raj, S.V. and Locci, I.E., Metall. Trans. A 23A, 1493 (1992).Google Scholar
13. Zeller, M.V., Noebe, R.D. and Locci, I.E., in HITEMP Review - 1990, NASA CP-10051, pp. 21–1 to 21–17 (1990).Google Scholar
14. Noebe, R.D., NASA TM-106534, April 1994.Google Scholar
15. Lerch, B.A. and Noebe, R.D., Metall. Maters. Trans. A 25A, 309 (1994).Google Scholar
16. Rao, K.B.S., Lerch, B.A. and Noebe, R.D., in HITEMP Review - 1994, NASA CP-10146, pp. 53–1 to 53–11 (1994).Google Scholar