新型热处理调控Al-Cu-Mg合金残余应力的工艺和机理
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马文静,陈志国,李鸿娟,袁珍贵,郑子樵
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Process and Mechanism of Novel Heat Treatment for Controlling Residual Stress in Al-Cu-Mg Alloy
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Wenjing MA,Zhiguo CHEN,Hongjuan LI,Zhengui YUAN,Ziqiao ZHENG
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| 表2 热处理工艺参数 |
| Table 2 Process parameters of the heat treatment |
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| Sample name | Solution heat treatment | Quenching media | Pre-deformation | Immersion liquid nitrogen | Reheating medium | Aging |
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| ST | 495℃/1 h | water 20℃ | - | - | - | - | | T6 | 495℃/1 h | water 20℃ | - | - | - | 190℃/12 h | | T8(1.5%) | 495℃/1 h | water 20℃ | 1.5% | - | - | 190℃/10 h | | T8(3%) | 495℃/1 h | water 20℃ | 3% | - | - | 190℃/10 h | | PU(1.5/200) | 495℃/1 h | water 20℃ | 1.5% | -196℃/2 h | 200℃/5 min | 190℃/10 h | | PU(3/150) | 495℃/1 h | water 20℃ | 3% | -196℃/2 h | 150℃/5 min | 190℃/10 h | | PU(3/200) | 495℃/1 h | water 20℃ | 3% | -196℃/2 h | 200℃/5 min | 190℃/10 h |
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