Copper alloy and method for producing same
US10954586B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 22, 2018 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Nov 4, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C9/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A copper alloy disclosed in the present description has a basic alloy composition represented by Cu100−(x+y)SnxAly (where 8≤x≤12 and 8≤y≤9 are satisfied), in which a main phase is a βCuSn phase with Al dissolved therein, and the βCuSn phase undergoes martensitic transformation when heat-treated or worked. A method for producing a copper alloy disclosed in the present description is a casting step of melting and casting a raw material containing Cu, Sn, and Al and having a basic alloy composition represented by Cu100−(x+y)SnxAly (where 8≤x≤12 and 8≤y≤9 are satisfied) so as to obtain a cast material, and a homogenization step of homogenizing the cast material in a temperature range of a βCuSn phase so as to obtain a homogenized material, the method includes at least the casting step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.