Beta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same

A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about 10.5% by weight aluminum, at least about 10%...

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Bibliographic Details
Main Authors BREEDIS; JOHN F, ASHOK; SANKARANARAYANAN
Format Patent
LanguageEnglish
Published 28.04.1987
Edition4
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about 10.5% by weight aluminum, at least about 10% by weight nickel and the balance essentially copper. In accordance with an alternative embodiment the nickel can be replaced on a one for one basis by iron within certain limits. The alloys are processed by chill casting with a cooling rate throughout the section of the casting comprising at least about 10 DEG C./sec. The alloys as-cast or when reheated to a semi-solid exhibit a microstructure suitable for press forging.
Bibliography:Application Number: US19850749835