Hostname: page-component-848d4c4894-x5gtn Total loading time: 0 Render date: 2024-06-03T14:40:02.363Z Has data issue: false hasContentIssue false
  • English
  • Français

Changes in the Degree of LRO in B2-Ordered Intermetallic FeAl

Published online by Cambridge University Press:  10 February 2011

K. Rohrhofer ,
H. Lang ,
P. Rosenkranz ,
R. Kozubski ,
W. Püschl  and
W. Pfeiler
K. Rohrhofer
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
H. Lang
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
P. Rosenkranz
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
R. Kozubski
Affiliation:
Onleave from Institute of Physics, Jagellonian University, Reymonta 4, PL-30–059 Kraków, Poland
W. Püschl
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
W. Pfeiler
Affiliation:
Institut für Materialphysik, University of Vienna, Strudlhofgasse 4, A-1090 Vienna, Austria
Get access

Abstract

Changes in the degree of long-range order (LRO) have been investigated in B2-ordered intermetallicFe-44.8at%Al by electrical resistivity measurement (resistometry). Order variations were observed during isochronal annealing for different states of initial thermal treatment. A complicated behaviour of resistivity changes with temperature is observed when starting with a small degree of disorder. Very slight re-ordering is found already at about 470K and is surprisingly followed by a slight disordering above 530K. Only for very long annealing times the expected ordering tendency is observed in this temperature range. Above 710K re-ordering is continued and reversible equilibrium changes of order with temperature are observed above 830K.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK8.23.1
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. Lang, H. and Pfeiler, W., Mat. Res. Soc. Symp. Proc. 481, 297, (1998).Google Scholar
2. Kozubski, R. and Pfeiler, W., Acta mat. 44, 1573 (1996).CrossRefGoogle Scholar
3. Pierron-Bohnes, V., Yaldram, K., Kentzinger, E., Cadeville, M.C. and Khan, M.A., in: Solid-Solid Phase Transformations, ed. Johnson, W. C. et al. TMS-Proceedings, Warrendale, 1994, p. 491.Google Scholar
4. Feldwisch, R., Sepiol, B. and Vogl, G., Acta met. mat. 43, 2033 (1995).CrossRefGoogle Scholar
5. Würschum, R. and Schaefer, H.E., Mat. Sci. Forum 255–257, 81 (1997).CrossRefGoogle Scholar
6. Collins, G.S., Fan, J. and Bai, B., in: Structural Intermetallics 1997, Ed. Nathal, M.V. et al., The Minerals, Metals & Materials Society, 1997.Google Scholar
7. Rossiter, P.L., The Electrical Resistivity of Metals and Alloys. Cambridge University Press, Cambridge 1987.CrossRefGoogle Scholar
8. Badura, K. and Schaefer, H.E., Z. Metallk., 84, 405 (1993).Google Scholar
9. Rivi`re, J.P. and Grilhe, J., Acta met. 20, 1275 (1972).CrossRefGoogle Scholar