Synthesis and Superplastic Deep Drawing of TiAl Alloy

Abstract:

Article Preview

TiAl alloys are powerful candidates for light weight high temperature structural materials because of their excellent high temperature strength, low density and good oxidation resistance. Unfortunately, TiAl alloys are difficult to machine and hot working due to ordered structure, which impede large-scale application. Synthesis and superplastic deep drawing of a TiAl alloy were studied. Mechanically synthesized fine crystalline Ti/Al composite powders as precursor of TiAl alloy. The TiAl alloy with fine grain via reactive sintering was obtained. The deformation behavior under biaxial stress by means of deep drawing was achieved. The optimum temperature is 1100°C≤T≤1150°C. The microstructures corresponding to deep drawing in the part were studied.

Info:

Periodical:

Materials Science Forum (Volumes 551-552)

Edited by:

K.F. Zhang

Pages:

467-472

Citation:

W. B. Han et al., "Synthesis and Superplastic Deep Drawing of TiAl Alloy", Materials Science Forum, Vols. 551-552, pp. 467-472, 2007

Online since:

July 2007

Export:

Price:

$38.00

[1] T.G. Nieh, T. Wadsworth and O.D. Sherby: Superplasticity in Metals and Ceramics (Cambridge University Press, UK 1997).

[2] T.G. Nieh and J. Wadsworth: Mater. Sci. and Eng., Vol. 239-240 (1997), p.88.

[3] T.G. Nieh, L.M. Hsiung and J. Wadsworth: Intermetallics, Vol. 7 (1999), p.163. �.

[4] D.L. Lin and F. Sun: Intermetallics, Vol. 12 (2004), p.875.

[5] L.M. Hsiung and T.G. Nieh: Mater. Sci. and Eng., Vol. 364 (2004), p.1.

[6] K. Hiraga, K. Nakano, T.S. Suzuki and Y. Sakka: Mater. Sci. Forum, Vol. 357-359 (2001), p.193.

[7] K. Nakano, T.S. Suzuki, K. Hiraga and Y. Sakka: Scripta Mater., Vol. 38 (1998), p.33.

[8] T.S. Suzuki, Y. Sakka, K. Morita and K. Hiraga: Scripta Mater., Vol. 43 (2000), p.705.

[9] B.N. Kim, K. Hiraga, K. Morita and Y. Sakka: Acta Mater., Vol. 49 (2001), p.887.

[10] T. Novoselova, S. Malinov and W. Sha: Intermetallics, Vol. 11 (2003), p.491. �.

Fetching data from Crossref.
This may take some time to load.