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In Situ Composites Prepared By Solidification And Mechanical Techniques

Published online by Cambridge University Press:  15 February 2011

J. D. Verhoeven
J. D. Verhoeven*
Affiliation:
Ames Laboratory*and Department of Materials Science and Engineering Iowa State University Ames, IA 50011USA
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Abstract

An alternate in situ technique is presented for preparation of aligned microstructures which has been successfully applied to the preparation of copper alloys. In this technique, a two phase alloy is first prepared by conventional casting techniques to produce a random array of dendrites of phase 1 in a matrix of phase 2. The casting is then reduced to wire size by mechanical reductions. It is demonstrated that the alignment of the dendritic phase produced by the mechanical reduction is surprisingly good, and that one can achieve a wide range of microstructural control over the filament size and morphology by utilization of controlled coarsening anneals followed by additional wire drawing. Examples are presented of Cu-Nb alloys which are converted to Nb3 Sn-Cu superconducting wires possessing excellent critical current values, and of Fe-Cu alloys which produce wires having quite high strength to resistivity ratios.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 12: Symposium L – In Situ Composites IV , 1981 , 267
Copyright
Copyright © Materials Research Society 1982

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References

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