Hostname: page-component-745bb68f8f-d8cs5 Total loading time: 0 Render date: 2025-02-04T11:59:53.899Z Has data issue: false hasContentIssue false
  • English
  • Français

Microstructure of Rolled Ti-46.5Al-4(CrNb,Ta,B)

Published online by Cambridge University Press:  10 February 2011

B. J. Inkson  and
H. Clemens
B. J. Inkson
Affiliation:
Dept. of Materials, University of Oxford, Oxford, OX1 3PH, U.K.
H. Clemens
Affiliation:
Institut füir Metallkunde, Universitit Stuttgart, Seestrasse 71, D-70174, Stuttgart, GERMANY.
Get access

Abstract

An industrial Ti-46.5A1–4(CrNb,Ta) alloy, with and without boron additions, has been successfully rolled to sheet 1.5mm thick. The microstructure of the sheet material has been characterised as a function of boron content and subsequent heat treatments. It is observed that rod-like (Ti-Ta)B precipitates are effective in refining the grain structure in both as-rolled and subsequently heat treated material. As-rolled microstructures rapidly cooled from the α + γ phase field contain unstable α2, which transforms to B2 phase on annealing below the α + γ tranus. Annealing in the α-phase field can result in a designed fully lamellar microstructure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK3.12.1
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Clemens, H., Z. Metallkd. 86, 814 (1995).Google Scholar
2. Clemens, H., Glatz, W., Eberhardt, N., Martinz, H.-P. and Knabl, W., Mater. Res. Soc. Symp. Proc. Vol. 460, 29 (1997).CrossRefGoogle Scholar
3. Clemens, H. et al, Structural Intermetallics 1997, The Minerals Metals & Materials Society, Warrendale, PA, USA, p. 277 (1997).Google Scholar
4. De Graef, M., Löfvander, J.P.A. and Levi, C.G., Acta Mater. 39, 10, 2381 (1991).CrossRefGoogle Scholar
5. Appel, F., Clemens, H., Glatz, W. and Wagner, R., Mater. Res. Soc. Symp. Proc. Vol.460, 195 (1997).CrossRefGoogle Scholar
6. Lorich, A., Diplomarbeit, Montanuniversitat, Leoben, Austria (1998).Google Scholar
7. Inkson, B.J., Clemens, H. and Marien, J., Scripta Mater. 38, 9, 1377 (1998).CrossRefGoogle Scholar