Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-25T17:32:56.387Z Has data issue: false hasContentIssue false
  • English
  • Français

Burgers Vector Transition in Fe-Ai-Ni Alloys

Published online by Cambridge University Press:  26 February 2011

D. Keith Patrick ,
Keh-Minn Chang ,
Daniel B. Miracle  and
Harry A. Lipsitt
D. Keith Patrick
Affiliation:
Wright State University, Department of Mechanical and Materials Engineering, Dayton, Ohio 45435 Metcut-Materials Research Group, P.O. Box 33511, Wpafb, Ohio 45433
Keh-Minn Chang
Affiliation:
General Electric Corporate Research and Development Center, Schenectady, New York 12301
Daniel B. Miracle
Affiliation:
Air Force Materials Laboratory, WRDC/MLLM, WPAFB, Ohio 45433
Harry A. Lipsitt
Affiliation:
Wright State University, Department of Mechanical and Materials Engineering, Dayton, Ohio 45435
Get access

Abstract

Polycrystalline NiAl exhibits <001> slip at temperatures below about 450°C. In Fe-Al alloys there is a transition in the Burgers vector from a/2<111> at low temperatures to a<001> at intermediate temperatures. The transition temperature is dependent upon composition.

A transition in the Burgers vector from a/2<111> to a<001> has been found to exist as a function of composition and temperature in the B2 pseudo-binary (Fe,Ni)-40Al (at%) system. At room temperature, this transition occurs at a composition between Fe-40Al-10Ni, which exhibits <111> slip, and Fe-40Al-3ONi, which exhibits <001> slip. At 400°C this transition shifts further toward the iron-rich compositions. Fe-40Al-10Ni exhibits both <111> and <001> slip, whereas Fe-40Al-20Ni exhibits <001> slip.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 267
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) Ball, A. and Smallman, R.E., Acta Metal., 14, 1517 (1966).Google Scholar
2) Vedula, K., Hahn, K.H., and Boulogne, B. 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. 299–304.Google Scholar
3) Kim, H-M., Mendiratta, M.G., and Lipsitt, H.A., Met. Trans. A, 15, 395 (1984).Google Scholar
4) Umakoshi, Y. and Yamaguchi, M., Phil. Mag., 41, 573 (1980).CrossRefGoogle Scholar
5) Umakoshi, Y. and Yamaguchi, M., Phil. Mag., 44, 711 (1981).Google Scholar
6) Loretto, M.H. and Wasilewski, R.J., Phil. Mag., 23, 1311 (1971).Google Scholar
7) Mendiratta, M.G. and Law, C.C., Journal of Mat. Sci., 22, 607 (1987).Google Scholar
8) Crawford, R.C., Phil. Mag., 33, 529 (1976).CrossRefGoogle Scholar
9) Head, A.K., Loretto, M.H., and Humble, P., Phys. Stat. Sol., 20, 521 (1967).Google Scholar
10) Edington, J.W., Practical Electron Microscopy in Materials Science, Monograph 3, (Philips, Eindhoven, 1975) pp. 10–17.Google Scholar