Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation
文献类型：期刊论文
| 作者 | Xu, Chenglong4; Huang, Jiwu3,4; Jiang, Fuqing2; Jiang, Yingge1,4 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2022 |
| 卷号 | 183页码:14 |
| ISSN号 | 1044-5803 |
| 关键词 | Al-Zn-Mg-Cu-Sc-Zr alloy hot compression flow behavior dynamic recrystallization mechanism precipitation behavior |
| DOI | 10.1016/j.matchar.2021.111629 |
| 通讯作者 | Huang, Jiwu(huangjw@csu.edu.cn) |
| 英文摘要 | The hot deformation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy was explored in the isothermal hot compression test with a temperature range of 300-500 degrees C and a strain rate of 0.001-10 S-1. The stress-strain curve, constitutive equation, and processing map were integrated to evaluate the flow behavior and hot work-ability of the studied alloy. Besides, the relationship between dynamic recrystallization and precipitation behavior and the Zener-Hollomon (Z) parameter during hot deformation was deeply explored. As lnZ decreased, the dislocation density decreased, while the misorientation angle increased. Meanwhile, with the decrease of lnZ, the amount of low-angle grain boundaries and medium-low-angle grain boundaries decreased. Moreover, dynamic recovery is the dominant dynamic softening mechanism, while three different dynamic recrystallization (DRX) mechanisms were the main DRX mechanisms at different lnZ values. Discontinuous DRX dominated at high lnZ value (lnZ >= 33.33); Continuous DRX (CDRX) dominated at middle lnZ value (23.4 < lnZ < 33.33); Geometric DRX dominated at low lnZ value (lnZ <= 23.44). Meanwhile, increasing lnZ value is conducive to precipitation behavior. The intragranular precipitates and grain boundary precipitates are identified as the phase containing Al, Fe, Mn, and Si, the equilibrium eta phase containing Cu and Al-3(Sc, Zr) particles. |
| 资助项目 | Key-Area Research and Development Program of Guangdong Province[2020B010186002] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE INC |
| WOS记录号 | WOS:000729283300001 |
| 资助机构 | Key-Area Research and Development Program of Guangdong Province |
| 源URL | [http://ir.imr.ac.cn/handle/321006/167292]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Huang, Jiwu |
| 作者单位 | 1.Hunan Aerosp Magnetoelect Co Ltd, Hunan Prov Enterprise Technol Ctr, Changsha 410200, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Cent South Univ, Key Lab Nonferrous Metall Mat Sci & Engn, Minist Educ, Changsha 410083, Peoples R China 4.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Chenglong,Huang, Jiwu,Jiang, Fuqing,et al. Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation[J]. MATERIALS CHARACTERIZATION,2022,183:14. |
| APA | Xu, Chenglong,Huang, Jiwu,Jiang, Fuqing,&Jiang, Yingge.(2022).Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation.MATERIALS CHARACTERIZATION,183,14. |
| MLA | Xu, Chenglong,et al."Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation".MATERIALS CHARACTERIZATION 183(2022):14. |
入库方式： OAI收割
来源：金属研究所
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