Influence of solidification conditions, thermomechanical processing, and alloying additions on the structure and properties of in situ composite Cu-Ag alloys
There is considerable interest in the development of high strength Cu-base composites with high conductivity for applications such as high field magnets, and essentially two alloy types have been examined, where a phase distributed in the Cu matrix during solidification is transformed into fine filaments during cold working of the material to sheet or wire. The present investigation was carried out to examine several poorly-understood aspects of processing, structure evolution, and strengthening in Cu-Ag alloys. The initial, as-solidified microstructure should play a role in determining the strength after working to sheet or wire, since it should influence the final microstructural scale. It is not known, however, to what extent the advantage of structural refinement by faster solidification may be usefully retained during working. The present study has examined the influence of Carbon and Zr mixed with the Cu-Ag alloy during melting in an attempt to reduce oxygen contamination and the ensuring possible embrittlement. At the same time, Zr may be expected to modify the kinetics and extent of age hardening in Cu-Ag solutions.
- Research Organization:
- Univ. of Neuchatel (CH)
- OSTI ID:
- 20001714
- Journal Information:
- Scripta Materialia, Vol. 41, Issue 10; Other Information: PBD: 22 Oct 1999
- Country of Publication:
- United States
- Language:
- English
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