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A Relationship between the Crystalization Rate and the Structure and Strength Characteristics or the Fe-C-Cr, Fe-C-Cr-Ti and Fe-C-Cr-Ce Alloys Subjected to Directional Solidification

Published online by Cambridge University Press:  21 February 2011

Edward Fras
Affiliation:
Foundry Department of the Academy of Mining and Metallurgy, Reymonta 23 Avenue, 30–059 Cracow, Poland
Edward Guzik
Affiliation:
Foundry Department of the Academy of Mining and Metallurgy, Reymonta 23 Avenue, 30–059 Cracow, Poland
Antoni Karamara
Affiliation:
Foundry Research Institute, Zakopiaríska 73 Avenue, 30–418 Cracow Poland
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Abstract

The paper present the results of investigation into the directional solidification of Fe-C-Cr alloys containing about 30% Cr and various contents of carbon. The main types of the structure of these alloys were given and the zone of a coupled growth of the eutectic was determined as well as an effect of the growth rate on the interfacial distance λ and on the tensile strengthof these alloys. It was proved that the additions of titanium and cerium considerably reduce the distance λ and increase the tensile strength, which in the case of an Fe-Cr-C-Ce alloy can reach a value of about 3250 MPa. The alloys solidified in the form of bars and plates which also enabled the determination of an effect of angle between the axis of the carbide fibres and the direction of loading on the ultimate tensile strength. of these alloys.

Type
Research Article
Copyright
Copyright © Materials Research Society 1985

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References

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