| Dynamic recrystallization and precipitation behavior of a novel Sc, Zr alloyed Al-Zn-Mg-Cu alloy during hot deformation | |
| Xu, Chenglong1; Huang, Jiwu1,2; Jiang, Fuqing3; Jiang, Yingge1,4 | |
| Corresponding Author | Huang, Jiwu(huangjw@csu.edu.cn) |
| 2022 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 183Pages:14 |
| Abstract | 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. |
| Keyword | Al-Zn-Mg-Cu-Sc-Zr alloy hot compression flow behavior dynamic recrystallization mechanism precipitation behavior |
| Funding Organization | Key-Area Research and Development Program of Guangdong Province |
| DOI | 10.1016/j.matchar.2021.111629 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Key-Area Research and Development Program of Guangdong Province[2020B010186002] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000729283300001 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/167293 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Huang, Jiwu |
| Affiliation | 1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Hunan, Peoples R China 2.Cent South Univ, Key Lab Nonferrous Metall Mat Sci & Engn, Minist Educ, Changsha 410083, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 4.Hunan Aerosp Magnetoelect Co Ltd, Hunan Prov Enterprise Technol Ctr, Changsha 410200, Peoples R China |
| Recommended Citation 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. |
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