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Mechanical Properties of Ordered Fe-Al-X Alloys

Published online by Cambridge University Press:  26 February 2011

Ujjwal Prakash ,
Robert A. Buckley  and
Howard Jones
Ujjwal Prakash
Affiliation:
School of Materials, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK.
Robert A. Buckley
Affiliation:
School of Materials, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK.
Howard Jones
Affiliation:
School of Materials, University of Sheffield, Mappin Street, Sheffield, S1 3JD, UK.
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Abstract

Fe-Al-X alloys (X = Cr, Mo) in the composition range 50 to 80 at. % Fe, 0 to 20 at. % X were rapidly solidified by chill-block melt-spinning. As-spun and heat treated ribbons were characterised by optical and electron microscopy and X-ray diffraction. Strengthening mechanisms were identified using microhardness measurements. Tensile fracture surfaces of ribbons reveal ductile to cleavage to intergranular fracture transitions with increasing Al-content. An increasing preponderance of cleavage fracture with increasing ternary substitution for Fe was observed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 691
Copyright
Copyright © Materials Research Society 1991

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References

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