Cu-Mg-P-based copper alloy sheet having excellent fatigue resistance characteristic and method of producing the same
US9169539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2012 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Oct 31, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The fatigue resistance characteristics, particularly, fatigue resistance characteristics after retention at 150° C. for 1000 hours are improved while maintaining the characteristics in the related art. Provided is a copper alloy sheet having a composition containing 0.2% by mass to 1.2% by mass of Mg, and 0.001% by mass to 0.2% by mass of P, the balance being Cu and unavoidable impurities. When X-ray diffraction intensity of a {110} crystal plane is set as I{110}, and X-ray diffraction intensity of {110} crystal plane of a pure copper standard powder is set as I0{110}, a surface crystal orientation of the copper alloy sheet satisfies a relation of 4.0≦I{110}/I0{110}≦6.0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.