| Deformation Behavior of 6063 Aluminum Alloy During High-Speed Compression |
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| 作者姓名： | WANG Mengjun GAN Chunlei LIU Xinyu |
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| 作者单位： | [1]School of Materials Science and Engineering, Central South University, Changsha 410083, China [2]School of Materials Science and Engineering, University of Science and Techology Beijing,Beijing 100083, China [3]Department of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China |
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| 基金项目： | Funded by the State＂973＂ Project（ No. G1999064908）. |
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| 摘 要： | The deformation behavior characteristics of 6063 aluminum alloy were studied experimentally by isothermal compression tests on a Gleeble- 1500 thermal-mechanical simulator. Cylindrical specimens of 14mm in height and 10mm in diameter were compressed dynamically at temperatures ranging from 473 to 723K and at higher strain rntes from 5 to 30s^-1. It is fouud that the flow curves not only depend on the strain rate and temperature but nlso on the dynamic recovery aud recrystallization behavior. The results show that the flow stress decreased with the increase of temperature, while increased with the increase of strain rate. The discontinuous dynamic recrystallization （DDRX） may take place at a high strain rate of 20s^-1 under the tested conditions. At 30s^-1 , the flow curve can exhibit,flow softening due to the effect of temperature rise that raised the temperature by aboat 32K in less than 0.05s.
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| 关 键 词： | 6063铝合金 高速压缩 动态恢复 不连续性 疲劳特性 |
| 收稿时间： | 2004-03-23 |
| 修稿时间： | 2005-05-12 |
Deformation behavior of 6063 aluminum alloy during high-speed compression |
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| WANG Mengjun GAN Chunlei LIU Xinyu.Deformation Behavior of 6063 Aluminum Alloy During High-Speed Compression[J].Journal of Wuhan University of Technology. Materials Science Edition,2005,20(3):40-43. |
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| Authors: | Wang Mengjun Ph D Gan Chunlei Liu Xinyu |
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| Affiliation: | (1) School of Materials Science and Engineering, Central South University, 410083 Changsha, China;(2) School of Materials Science and Engineering, University of Science and Technology Beijing, 100083 Beijing, China;(3) Department of Materials Science and Engineering, Guilin University of Electronic Technology, 541004 Guilin, China |
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| Abstract: | The deformation behavior characteristics of 6063 aluminum alloy were studied experimentally by isothermal compression tests on a Gleeble-1500 thermal-mechanical simulator. Cylindrical specimens of 14mm in height and 10mm in diameter were compressed dynamically at temperatures ranging from 473 to 723K and at higher strain rates from 5 to 30s -1 . It is found that the flow curves not only depend on the strain rate and temperature but also on the dynamic recovery and recrystallization behavior. The results show that the flow stress decreased with the increase of temperature, while increased with the increase of strain rate.The discontinuous dynamic recrystallization (DDRX) may take place at a high strain rate of 20s -1 under the tested conditions. At 30s -1 , the flow curve can exhibit flow softening due to the effect of temperature rise that raised the temperature by about 32K in less than 0.05s. |
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| Keywords: | 6063 Al alloy flow stress dynamic recovery discontinuous dynamic recrystallization temperature rise |
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