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Mechanical Anisotropy of a Gamma Titanium Aluminide Alloy After Hot Extrusion

  • M. Oehring (a1), U. Lorenz (a1), R. Niefanger (a1), F Appel (a1), H.-G. Brokmeier (a1), R. Wagner (a2), H. Clemens (a3) and N. Eberhardt (a4)...

Abstract

By hot extrusion below and above the α transus temperature equiaxed and predominantly lamellar microstructures were obtained in a Ti aluminide alloy. In order to examine a possible orientation dependence of mechanical properties the flow stress, the activation parameters of plastic deformation and the fracture toughness were determined parallel and perpendicular to the extrusion direction at room temperature and 700 °C. The observed anisotropy in these properties may be mainly attributed to anisotropies in the microstructures, in particular to a preferential alignment of lamellae in lamellar microstructures.

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1. Kim, Y.-W., JOM 46(7), 30 (1994)
2. Appel, F., Wagner, R., Mater. Sci. Engng. R22, 187 (1998)
3. Semiatin, S.L., Frey, N., El-Soudani, S.M., Bryant, J.D., Metall. Trans. 23A, 1719 (1992)
4. Koeppe, C., Bartels, A., Seeger, J., Mecking, H., Metall. Trans. 24A, 1795 (1993)
5. Martin, P.L., Rhodes, C.G., McQuay, P.A., Structural Intermetallics, eds. Darolia, R., Lewandowski, J.J., Liu, C.T., Martin, P.L., Miracle, D.B., Nathal, M.V. (TMS, Warrendale, PA, 1993), p. 177
6. Clemens, H., Eberhardt, N., Glatz, W., Martinz, H.-P., Knabl, W., Reheiss, N., Structural Intermetallics 1997, eds. Nathal, M.V., Darolia, R., Liu, C.T., Martin, P.L., Miracle, D.B., Wagner, R., Yamaguchi, M. (TMS, Warrendale, PA, 1997), p. 277
7. Dimiduk, D.M., Martin, P.L., Kim, Y.-W., Mater. Sci. Engng. A243, 66 (1998)
8. Liu, C.T., Maziasz, P.J., Clemens, D.R., Schneibel, J.H., Sikka, V.K., Nieh, T.G., Wright, J., Walker, L.R., Gamma Titanium Aluminides, eds. Kim, Y.-W., Wagner, R., Yamaguchi, M. (TMS, Warrendale, PA, 1995), p. 679
9. Fujiwara, T., Nakamura, A., Hosomi, M., Nishitani, S.R., Shirai, Y., Yamaguchi, M., Phil. Mag. A 61, 592 (1990)
10. Cheng, T.T., Loretto, M.H., Structural Intermetallics 1997, eds. Nathal, M.V., Darolia, R., Liu, C.T., Martin, P.L., Miracle, D.B., Wagner, R., Yamaguchi, M. (TMS, Warrendale, PA, 1997), p. 253
11. Krishnan, M., Natarajan, B., Vasudevan, V.K., Dimiduk, D.M., Structural Intermetallics 1997, eds. Nathal, M.V., Darolia, R., Liu, C.T., Martin, P.L., Miracle, D.B., Wagner, R., Yamaguchi, M. (TMS, Warrendale, PA, 1997), p. 235
12. Maziasz, P.J., Ramanujan, R.V., Liu, C.T., Wright, J.L., Intermetallics 5, 83 (1997)
13. Schöck, G., Phys. Stat. Sol. (a) 8, 499 (1965)
14. Appel, F., Lorenz, U., Oehring, M., Sparka, U., Wagner, R., Mater. Sci. Engng. A233, 1 (1997)
15. F Appel, Sparka, U., Wagner, R., High-Temperature Intermetallic Alloys VI, eds. J. Horton, I. Baker. S. Hanada, R.D. Noebe, D.S. Schwartz, Mater. Res. Soc. Symp. Proc. Vol.364 (MRS, Pittsburgh, PA, 1995), p. 623
16. Lorenz, U., Appel, F., Wagner, R., Mater. Sci. Engng. A234–236, 846 (1997)
17. Appel, F., Christoph, U., Wagner, R., Phil. Mag. A 72, 341 (1995)

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