Rhenium-bearing copper-nickel-tin alloys
US4388270A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1982 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Sep 16, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2240/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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 0.002-0.4 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.