Rhenium-bearing copper-nickel-tin alloys

Details Rhenium-bearing copper-nickel-tin alloys Rhenium-bearing copper-nickel-tin alloys

C - Chemistry, Metallurgy

22

C

75/72

C22C 9/06 (2006.01) C22C 9/02 (2006.01)

Patent

CA 1208042

ABSTRACT A copper based alloy consisting essentially of about 4-15 wt. percent nickel, about 4-8 wt. percent tin, the balance essentially copper, to which was added to said copper, nickel and tin, prior to casting, about .002-0.4 wt. percent of rhenium. Improved grain structure in the as-cast metal, as well as a retained finer grain structure through homogenization anneals is realized. Finer grain structure after standard processing with attendant improved cold working characteristics, and improved strength for strip material made by standard processing procedures is also obtained. The invention is further directed to the method of producing the alloy.

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