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DO3-domain Structures in Fe3Al-X Alloys

Published online by Cambridge University Press:  21 February 2011

Madan G. Mendiratta  and
Harry A. Lipsitt
Madan G. Mendiratta
Affiliation:
Universal Energy Systems, Inc., 4401 Dayton-Xenia Rd., Dayton, OH 45432
Harry A. Lipsitt
Affiliation:
Materials Laboratory, AFWAL/MLLM, Wright-Patterson AFB, OH 45433
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Abstract

The influence of a number ternary additions in Fe3Al upon the DO3 domain structures and DO3 → B2 transformation temperature, Tc, has been investigated. It was found that additions in (atomic percent) of 5 Ti, 5 Cr, 6 Mn, 12 Mn, 10 Ni, 3 Mo, 6 Mo, 3 Si, and 5 Si raise Tc. In the Fe-20 Al-5 Ti alloy not only is Tc raised significantly (≧ 750°C), but the DO3 antiphase domain boundaries with fault vector become highly crystallographic and are parallel to {100} planes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 39: Symposium G – High-Temperature Ordered Intermetallic Alloys I , 1984 , 155
Copyright
Copyright © Materials Research Society 1985

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References

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