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A New Tetragonal Boride Phase in FeAl+B Type Alloys

Published online by Cambridge University Press:  15 February 2011

Xavier Pierron  and
Ian Baker
Xavier Pierron
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, NH 03755–8000
Ian Baker
Affiliation:
Thayer School of Engineering, Dartmouth College, Hanover, NH 03755–8000
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Abstract

The structure and composition of a previously unreported second phase were investigated in both Fe-43A1–0.12B and Fe-48Al-0.12B alloys. Energy dispersive x-ray and electron energy loss spectroscopy showed that the precipitates contained boron and were enriched in iron. This new boride phase had a tetragonal symmetry, with at = 4aB2 and ct = aB2, where aB2 is the matrix lattice parameter. The effect of iron content and heat treatments on the microstructure of those two boron-doped FeAl alloys are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 460: Symposium Z – High-Temperature Ordered Intermetallic Alloys VII , 1996 , 331
Copyright
Copyright © Materials Research Society 1997

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References

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