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An Investigation of the Mechanical Behavior of a Superplastic Yttria-Stabilized Zirconia

Published online by Cambridge University Press:  16 February 2011

Yan Ma  and
Terence G. Langdon
Yan Ma
Affiliation:
Departments of Materials Science and Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1453
Terence G. Langdon
Affiliation:
Departments of Materials Science and Mechanical Engineering, University of Southern California, Los Angeles, CA 90089-1453
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Abstract

Experiments were conducted to determine the mechanical characteristics of an yttria-stabilized tetragonal zirconia containing 3 mol % Y2O3. Specimens were pulled in tension at elevated temperatures over a range of strain rates. It is demonstrated that this material exhibits good superplastic ductility, with tensile elongations >100% when the tests are conducted at low strain rates. Internal cavities are formed during deformation and it is shown that the cavitated area decreases with decreasing strain rate. At fast strain rates, of the order of 10−3 s−1, the cavities tend to link preferentially in a direction perpendicular to the tensile axis.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 196: Symposium T – Superplasticity in Metals, Ceramics, and Intermetallics , 1990 , 325
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1. Maehara, Y. and Langdon, T.G., J. Mater. Sci. (in press).Google Scholar
2. Cannon, W.R. and Langdon, T.G., J. Mater. Sci. 23, 1 (1988).Google Scholar
3. Wakai, F., Sakaguchi, S. and Matsuno, Y., Adv. Ceram. Mater. 1, 259 (1986).Google Scholar
4. Wakai, F., Sakaguchi, S., Kanayama, K., Kato, H. and Onishi, H., in Ceramic Materials and Components for Engines, edited by Bunk, W. and Hausner, H. (Deutsche Keramische Gesellschaft, SaarbrUcken, Germany, 1986), p. 315.Google Scholar
5. Nieh, T.G., McNally, C.M. and Wadsworth, J., Scripta Metall. 22, 1297 (1988).Google Scholar
6. Hermansson, T., Lagerl~f, K.P.D. and Dunlop, G.L., in Superplasticity and Superplastic Forming, edited by Hamilton, C.H. and Paton, N.E. (TMS, Warrendale, PA, 1988), p. 631.Google Scholar
7. Hermansson, T. and Dunlop, G.L., Intl. J. High Tech. Ceramics 4, 263 (1988).Google Scholar
8. Nieh, T.G., Wadsworth, J. and Sherby, O.D., in Proceedings of the MRS International Meeting on Advanced Materials, edited by Kobayashi, M. and Wakai, F. (Materials Research Society, Pittsburgh, PA, 1989), vol. 7, p. 251.Google Scholar
9. Nauer, M. and Carry, C., in Euro-Ceramics, edited by de With, G., Terpstra, R.A. and Metselaar, R. (Elsevier Applied Science, London, England, 1989), vol.3, p. 3.323.Google Scholar
10. Motohashi, Y., Watanabe, K., Kuboki, I. and Ohmori, M., in Proceedings of the MRS International Meeting on Advanced Materials, edited by Kobayashi, M. and Wakai, F. (Materials Research Society, Pittsburgh, PA, 1989), vol. 7, p. 243.Google Scholar
11. Nieh, T.G., McNally, C.M. and Wadsworth, J., JOM 41 (9), 31 (1989).Google Scholar
12. Wakai, F., Brit. Ceram. Trans. J. 88, 205 (1989).Google Scholar
13. Wakai, F. and Kato, H., Adv. Ceram. Mater. 3, 71 (1988).Google Scholar
14. Ma, Y., Zhao, X. and Langdon, T.G., in Creep and Fracture of Engineering Materials and Structures, edited by Wilshire, B. and Evans, R.W. (The Institute of Metals, London, England, 1990), p. 199.Google Scholar
15. Shei, S.-A. and Langdon, T.G., J. Mater. Sci. 13, 1084 (1978).Google Scholar
16. Chokshi, A.H. and Langdon, T.G., Acta Metall. 35, 1089 (1987).Google Scholar
17. Ishikawa, H., Bhat, D.G., Mohamed, F.A. and Langdon, T.G., Metall. Trans. 8A, 523 (1987).Google Scholar
18. Chokshi, A.H. and Langdon, T.G., Acta Metall. 37, 715 (1989).Google Scholar
19. Chokshi, A.H. and Langdon, T.G., Acta Metall. (in press).Google Scholar