Hostname: page-component-78c5997874-v9fdk Total loading time: 0 Render date: 2024-11-17T20:19:06.045Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanical Behavior of Single Crystalline A166.8Ti27.4Fe5.8

Published online by Cambridge University Press:  26 February 2011

Z.L. Wu ,
D.P. Pope  and
V. Vitek
Z.L. Wu
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, PA, 19104
D.P. Pope
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, PA, 19104
V. Vitek
Affiliation:
Department of Materials Science and Engineering, University of Pennsylvania, PA, 19104
Get access

Abstract

The operating slip systems and flow behavior of single crystalline A166.8Ti27.4Fe5.8 having the L12 structure were investigated at elevated temperatures using specimens with compressive axes near [001], [113], [112], [013] and [133]. Plastic deformation was carried exclusively by octahedral slip at low temperatures, and by both octahedral and cube slip at high temperatures. The yield stress is roughly temperature-independent at intermediate temperatures, but changes rapidly with temperature at high and low temperatures. At 770°C fracture occurs by cleavage on {011}, {001}, {013} and {111} planes. Al2Ti and AlTi3 were found in the single crystal matrix. The effects of these second phases on the mechanical behavior are not the same: Al2Ti does not embrittle the material but AlTi3 does.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 487
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. Khantha, M., Vitek, V. and Pope, D.P., to be presented at MRS meeting, Fall, 1990.Google Scholar
2. Wu, Z.L., Pope, D.P. and Vitek, V., Scripta metall., 24, 2187, 1990.CrossRefGoogle Scholar
3. Wu, Z.L., Pope, D.P. and Vitek, V., Scripta metall., 24, 2191, 1990.CrossRefGoogle Scholar
4. Mazdiyasni, S., Miracle, D.B., Dimiduk, D.M., Mendiratta, M.G. and Subramanian, P.R., Scripta metall., 23, 327, 1989.CrossRefGoogle Scholar
5. Wee, D.M., Pope, D.P. and Vitek, V., Acta metall., 32, 829 (1984).Google Scholar
6. Massalski, T.B., Murray, J., Bennett, L.H. and Baker, K., Binary Alloy Phase Dirgrams, (American Society for Metals, Metals Park, Ohio, 1986), p. 175.Google Scholar
7. George, E.P., Horton, J.A., Porter, W.D. and Schneibel, J.H., J. Mater. Res., 5, 1639, 1990.CrossRefGoogle Scholar
8. Lall, C., Chin, S. and Pope, D.P., Met. Trans., 10A, 1323, 1979.Google Scholar
9. Tichy, G., Vitek, V. and Pope, D.P., Phil. Mag., A, 53, 485, 1986.Google Scholar