发明名称 |
Artificial aging process for aluminum alloys |
摘要 |
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. |
申请公布号 |
US8323425(B2) |
申请公布日期 |
2012.12.04 |
申请号 |
US20080042639 |
申请日期 |
2008.03.05 |
申请人 |
WANG QIGUI;JONES PEGGY E.;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
WANG QIGUI;JONES PEGGY E. |
分类号 |
C21D11/00;C22C21/00;C22F1/04 |
主分类号 |
C21D11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|