| Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy | |
| Wang, Cong1,2; Liu, Yunteng3; Lin, Tao3; Luo, Tianjiao2; Zhao, Yuhong4; Hou, Hua4; Yang, Yuansheng2 | |
| Corresponding Author | Yang, Yuansheng(ysyang@imr.ac.cn) |
| 2019-11-01 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 157Pages:9 |
| Abstract | The hot deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy containing coarse second phase particles is studied. The flow stress increases with decreasing temperature and increasing strain rate. The stress-strain result is fitted to the hyperbolic sine equation to obtain the constitutive equation of the alloy. The processing map is constructed and it shows that low temperature and high strain rate lead to both low efficiency of power dissipation and instability and two domains with high efficiency of power dissipation out of the instability area is suitable for hot processing of the alloy: 580 K-670 K, 0.001 s(-1)-0.01 s(-1) and 630 K-670 K, 0.01 s(-1)-1 s(-1), the latter one is recommended for hot deformation for the higher strain rate. It was revealed that the effect of coarse particles on the restoration mechanism is dependent on the deformation condition. Under low Zener-Hollomon value, particles hinder discontinuous dynamic recrystallization through grain boundary pinning making dynamic recovery and continuous dynamic recrystallization the main restoration mechanism. Under high Zener-Hollomon value, the misorientation gradient near particles increases and the efficiency of particle stimulated nucleation increases. The enhanced particle stimulated nucleation accompanied by more active twinning and twin related recrystallization make the fraction of dynamic recrystallized grain to be higher under high Zener-Hollomon value. |
| Keyword | Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy Hot compression Processing map Coarse particles Microstructure evolution |
| Funding Organization | National Key Research and Development Program of China ; China National Key Research and Development Plan Project |
| DOI | 10.1016/j.matchar.2019.109896 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2016YFB0301105] ; China National Key Research and Development Plan Project[2017YFB0103904] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000496898300035 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/136796 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang, Yuansheng |
| Affiliation | 1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shandong Acad Sci, Adv Mat Inst, Shandong Key Lab High Strength Lightweight Metall, Qingdao 250014, Shandong, Peoples R China 4.North Univ China, Sch Mat Sci & Engn, Taiyuan 030051, Shanxi, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Cong,Liu, Yunteng,Lin, Tao,et al. Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy[J]. MATERIALS CHARACTERIZATION,2019,157:9. |
| APA | Wang, Cong.,Liu, Yunteng.,Lin, Tao.,Luo, Tianjiao.,Zhao, Yuhong.,...&Yang, Yuansheng.(2019).Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy.MATERIALS CHARACTERIZATION,157,9. |
| MLA | Wang, Cong,et al."Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy".MATERIALS CHARACTERIZATION 157(2019):9. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment