Artificial aging process for aluminum alloys
US8323425B2 · kind B2 · utility
2Cited by
3References
15Claims
0Family size
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Key dates
| Filing date | Mar 5, 2008 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Sep 21, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of a method for non-isothermally aging an aluminum alloy are provided. The method comprises heating an aluminum alloy at a first ramp-up rate to a maximum temperature below a precipitate solvus value, cooling the alloy at a first cooling rate sufficient to produce a maximum number of primary precipitates, cooling at a second cooling rate until a minimum temperature is reached wherein the growth rate of primary precipitates is equal to or substantially zero, and heating the alloy at a second ramp-up rate to a temperature sufficient to produce a maximum number of secondary precipitates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.