Hostname: page-component-77c89778f8-vsgnj Total loading time: 0 Render date: 2024-07-18T20:27:03.539Z Has data issue: false hasContentIssue false
  • English
  • Français

A study of Al2Ti precipitation in a Cu-modified Al3Ti alloy

Published online by Cambridge University Press:  31 January 2011

L. Potez ,
A. Loiseau ,
S. Naka  and
G. Lapasset
L. Potez
Affiliation:
ONERA, BP 72, 92322 Châtillon Cedex, France
A. Loiseau
Affiliation:
ONERA, BP 72, 92322, Châtillon Cedex, and LEM, ONERA/CNRS, BP 72, 92322 Châtillon Cedex, France
S. Naka
Affiliation:
ONERA, BP 72, 92322 Châtillon Cedex, France
G. Lapasset
Affiliation:
ONERA, BP 72, 92322 Châtillon Cedex, France
Get access

Abstract

An equilibrium precipitation of Al2Ti is shown to occur within a Cu-modified Al2Ti alloy having the L12 structure. This precipitation is analyzed by conventional and high resolution electron microscopy and some insights are given concerning the mechanisms of nucleation and growth of Al2Ti within the L12 matrix. In the meantime, Vickers microhardness tests have been performed as a first approach to the mechanical behavior of this alloy and the results are compared to measurements obtained in an actual single-phased L12 compound. The Al2Ti precipitation seems to have an important hardening effect.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 4 , April 1992 , pp. 876 - 882
Copyright
Copyright © Materials Research Society 1992

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

1.Yamaguchi, M., Umakoshi, Y., and Yamane, T., Philos. Mag. 55A, 103 (1987).Google Scholar
2.Kanamori, J. and Kakehashi, Y., J. Physique 38, 274 (1977).Google Scholar
3.Loiseau, A., Doctorate Thesis, Université Pierre & Marie Curie, Paris (1985).Google Scholar
4.Loiseau, A. and Vannuffel, C., Phys. Status Solidi (a) 107, 655 (1988).CrossRefGoogle Scholar
5.Loiseau, A., van Tendeloo, G., Portier, R., and Ducastelle, F., J. Physique 46, 595 (1985).CrossRefGoogle Scholar
6.Hug, G., Douin, J., and Veyssière, P., 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. Symp. Proc. 133, Pittsburgh, PA, 1989), pp. 125–130.Google Scholar
7.Pettifor, D. G., Mater. Sci. Technol. 4, 675 (1988).CrossRefGoogle Scholar
8.Brown, S. A., Kumar, K. S., and Whittenberger, J. D., Scripta Metall. 24, 2001 (1990).CrossRefGoogle Scholar
9.Kumar, K. S. and Pickens, J. R., Scripta Metall. 22, 1015 (1988).CrossRefGoogle Scholar
10.Mabuchi, H., Hirukawa, K., Tsuda, H., and Nakayama, Y., Scripta Metall. 23, 1761 (1989).CrossRefGoogle Scholar
11.Mabuchi, H., Hirukawa, K., Tsuda, H., and Nakayama, Y., Scripta Metall. 24, 505 (1990).CrossRefGoogle Scholar
12.Mazdiyasni, S., Miracle, D. B., Dimiduk, D. M., Mendiratta, M. G., and Subramanian, P. R., Scripta Metall. 23, 327 (1989).CrossRefGoogle Scholar
13.Nic, J. P., Zhang, S., and Mikkola, D. E., Scripta Metall. 24, 1099 (1990).CrossRefGoogle Scholar
14.Porter, W. D., Hisatsune, K., Sparks, C. J., Oliver, W. C., and Dhere, A., 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. Symp. Proc. 133, Pittsburgh, PA, 1989), p. 657.Google Scholar
15.Powers, W. O. and Wert, J. A., Metall. Trans. A 21A, 145 (1990).CrossRefGoogle Scholar
16.Tarnacki, J. and Kim, Y. W., Scripta Metall. 22, 329 (1988).CrossRefGoogle Scholar
17.Turner, C. D., Powers, W. O., and Wert, J. A., Acta Metall. 37, 2635 (1989).CrossRefGoogle Scholar
18.Winnicka, M. B., Scripta Metall. 23, 1199 (1989).CrossRefGoogle Scholar
19.Zhang, S., Nic, J. P., and Mikkola, D. E., Scripta Metall. 24, 57 (1990).CrossRefGoogle Scholar
20.Kumar, K. S., Int. Mater. Rev. 356, 293 (1990).CrossRefGoogle Scholar
21.Virdis, P. and Zwicker, V., Z. Metallkde 62, 46 (1971).Google Scholar
22.Markiv, V. Ya., Burnashova, V. V., and Ryabov, V. P., Akad. Nauk. Ukr., SSR, Metallofiz 46, 103 (1973).Google Scholar
23.Miida, R., Jpn. J. Appl. Phys. 25, 1815 (1986).CrossRefGoogle Scholar
24.Schubert, K., Kristallstrukturen zwei komponentiger Phasen, edited by Köster, W. (Springer-Verlag, Berlin, 1964).CrossRefGoogle Scholar
25.Dyck, D. Van, van Tendeloo, G., and Amelinckx, S., Ultramicroscopy 10, 263 (1982).CrossRefGoogle Scholar
26.Gerold, V., Scripta Metall. 22, 927 (1988).CrossRefGoogle Scholar
27.Virk, I. S., Winnicka, M. B., and Varin, R. A., Scripta Metall. 24, 2181 (1990).CrossRefGoogle Scholar
28.Powers, W. O., Wert, J. A., and Turner, C. D., Philos. Mag. A 60, 227 (1989).CrossRefGoogle Scholar
29.Zhang, S., Nic, J. P., Milligan, W. W., and Mikkola, D. E., Scripta Metall. 24, 1441 (1990).CrossRefGoogle Scholar
30.Wu, Z. L., Pope, D. P., and Vitek, V., Scripta Metall. 24, 2191 (1990).CrossRefGoogle Scholar