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Unusual Chemical Composition of Carbides in Rapidly Solidified High Speed Steels

Published online by Cambridge University Press:  25 February 2011

A. Tauqir ,
H. Nowotny  and
P. R. Strutt
A. Tauqir
Affiliation:
Metallurgy Department University of Connecticut Storrs, Connecticut 06268
H. Nowotny
Affiliation:
Metallurgy Department University of Connecticut Storrs, Connecticut 06268
P. R. Strutt
Affiliation:
Metallurgy Department University of Connecticut Storrs, Connecticut 06268
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Abstract

Studies of the elemental composition of carbide phases formed by rapid solidification of a Mo-base high speed steel (M7) have yielded an intriguing finding. Micro-analysis of the extracted carbides (M2C, M23C6 and MC) showea that these were unusually rich in refractory elements with values of Mo in the range 46-53 wt.%, corresponding values for Fe and Cr were low (6-12 wt.% Cr and 1.5-13 wt% Fe). This was in marked contrast with analyses of MC, M6C, M7C3 and M23C6 in the ‘unglazed’ material where Fe and Cr were major constituents. A distinctive feature was M23C6 in the rapidly solidified material which contained large amounts of Mo and W and very little Cr. It is proposed that this phase, initially formed as M6C, underwent solid-state transformation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 58 , 1985 , 425
Copyright
Copyright © Materials Research Society 1986

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References

REFERENCES

1.Galda, E. J., Kraft, R. W., Met. Trans. 5, 1727 (1974).Google Scholar
2.Brandis, H., Haberling, E., Weigand, H. H., Thyssen Edelstahl Tech. Ber. 7, No. 2, 115 (1981).Google Scholar
3.Pearson, W. B., Handbook of Lattice Spacing and Structures of Metals, (Pergamon Press, Oxford, 1967).Google Scholar
4.Staska, E., Bloch, R. and Kulmburg, A., Microchimica Acta (Wien) Suppl. 5, 111–127 (1974).Google Scholar
5.Sare, I. R., Honeycombe, R. W., J. Mat. Sc. 13, 1991 (1978).Google Scholar
6.Rayment, J. J., Canter, B., Met. Sc. 12, 156 (1978).Google Scholar
7.Kim, Y., Strutt, P. R. and Nowotny, H., Met. Trans. 10A, 881 (1979).Google Scholar