Hot compression deformation behavior of Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy
文献类型：期刊论文
| 作者 | Wang, Cong1,2; Liu, Yunteng3; Lin, Tao3; Luo, Tianjiao2; Zhao, Yuhong4; Hou, Hua4; Yang, Yuansheng2 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 157页码:9 |
| 关键词 | Mg-5Zn-3.5Sn-1Mn-0.5Ca-0.5Cu alloy Hot compression Processing map Coarse particles Microstructure evolution |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2019.109896 |
| 通讯作者 | Yang, Yuansheng(ysyang@imr.ac.cn) |
| 英文摘要 | 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. |
| 资助项目 | National Key Research and Development Program of China[2016YFB0301105] ; China National Key Research and Development Plan Project[2017YFB0103904] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000496898300035 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key Research and Development Program of China ; China National Key Research and Development Plan Project |
| 源URL | [http://ir.imr.ac.cn/handle/321006/136795]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Yuansheng |
| 作者单位 | 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 |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：金属研究所
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