Copper base spinodal alloy strip and process for its preparation
US4373970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1981 |
| Grant date | Feb 15, 1983 |
| Priority date | — |
| Expiry date | Nov 13, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/08
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Copper base spinodal alloy strip of good strength and ductility is provided, the alloy containing 5 to 35 percent nickel, 7 to 13 percent tin, balance essentially copper, and having an unaged microstructure characterized by an equiaxed grain structure of substantially all alpha, face-centered-cubic phase with a substantially uniform dispersed concentration of tin and a substantial absence of tin segregation. The strip is prepared from copper alloy powder of the indicated composition by a process comprising the steps of compaction, sintering, cooling, rolling and annealing. The strip after aging may contain up to about 50 percent alpha plus gamma phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.