Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-29T07:54:06.443Z Has data issue: false hasContentIssue false
  • English
  • Français

Deformation of the Orthorhombic Phase in Ti-Al-Nb Alloys

Published online by Cambridge University Press:  26 February 2011

D. Banerjee ,
R.G. Rowe  and
E.L. Hall
D. Banerjee
Affiliation:
Defence Metallurgical Research Laboratory, Hyderabad-500258, India
R.G. Rowe
Affiliation:
GE Corporate Research and Development, Schenactady, NY-12301
E.L. Hall
Affiliation:
GE Corporate Research and Development, Schenactady, NY-12301
Get access

Abstract

The deformation structure of the alpha-2 and orthorhombic phase in two alloys of the Ti-Al-Nb system has been characterised by transmission electron microscopy after plastic deformation of about 2% in compression at room temperauture. The orthorhombic phase is shown to deform by all slip modes present in the alpha-2 phase. In addition, extensive “c” component slip is observed in the orthorhombic phase on slip planes that are not equivalent to those observed for “c”component slip in alpha-2. Dislocation dissociation on both basal and prismatic planes of dislocations without a c component is observed in both phases.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 285
Copyright
Copyright © Materials Research Society 1991

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. Blackburn, M.J. and Smith, M.P., Technical Report AFWAL-TR-80–4175, 1980.Google Scholar
2. Blackburn, M.J. and Smith, M.P., Technical Report WRDC-TR-89–4095, 1989Google Scholar
3. Marquardt, B.J., Scarr, G.K., Chesnutt, J.C., Rhodes, C.G. and Fraser, H.L., Technical Report WRDC-TR-89–4133,1989.Google Scholar
4. Rowe, R.G. in High Temoerature Aluminides and Intermetallics, edited by Wang, S.H., Liu, C.T., Pope, D.P. and Stiegler, J.O. (TMS-AIME, Warrendale,Pa 1990) pp. 375–401.Google Scholar
5. Banerjee, D., Gogia, A.K., Nandy, T.K. and Joshi, V.A., Acta Metall., 36, 871 (1988).Google Scholar
6. Mozer, B., Bendersky, L.A. and Boettinger, W.J., Scripta Metall., in press (1990).Google Scholar
7. Konitzer, D.G., Jones, I.P. and Fraser, H.L., Scripta Metall., 20, 265 (1986).Google Scholar
8. Rowe, R.G. in Microstructure Property Relationships in Titanium Alloys and Titanium Aluminides (TMS-AlME, Detroit, 1990), in press.Google Scholar
9. Rowe, R.G., presented at the 1990 MRS Fall Meeting, Boston, MA, 1990 (unpublished).Google Scholar
10. Court, S.A., Lofvander, J.P.A., Kurath, P., and Fraser, H.L. in the Proceedings of The Sixth World Conference on Titanium, edited by Lacombe, P., Tricot, R. and Beranger, G. (J. De Physique, Les Ulis, France 1989) pp 949–954.Google Scholar
11. Court, S.A., Lofvander, J.P.A., Stucke, M.A., Kurath, P. and Fraser, H.L. in High Temperature Ordered Intermetallic Alloys III, edited by Liu, C.T., Taub, A.I., Stoloff, N.S. and Koch, C.C. (Mater. Res. Soc. Proc. 133, Pittsburgh, PA 1989) pp. 675–680.Google Scholar
12. Court, S.A., Lofvander, J.P.A., Loretto, M.H. and Fraser, H.L., Phil. Mag. A, 61, 109 (1990).Google Scholar
13. Minonishi, Y. and Yoo, M.H., Phil. Mag. Letters, 61, 203 (1990).CrossRefGoogle Scholar
14. Koss, D.A., Banerjee, D., Lukasak, D.A. and Gogia, A.K. in High Temperature Aluminides and Intermetallics, edited by Wang, S.H., Liu, C.T., Pope, D.P. and Stiegler, J.O. (TMS-AlME, Warrendale, PA 1990) pp. 175–196.Google Scholar
15. Banerjee, D., unpublished research, DMRL, India (1989).Google Scholar
16. Gogia, A.K., Muraleedharan, K. and Banerjee, D., unpublished research, DMRL, India (1990).Google Scholar