| Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy | |
| Zhao, L. Y.1,2; Yan, H.1; Chen, R. S.1; Han, En-Hou1 | |
| Corresponding Author | Yan, H.(hyan@imr.ac.cn) ; Chen, R. S.(rschen@imr.ac.cn) |
| 2020-12-01 | |
| Source Publication | MATERIALS CHARACTERIZATION
 |
| ISSN | 1044-5803 |
| Volume | 170Pages:9 |
| Abstract | The evolution of texture, low-angle grain boundaries and twins in a cold-rolled Mg-Zn-Gd alloy during continuous annealing at 250 degrees C were tracked by quasi-in-situ X-ray diffraction and quasi-in-situ electron backscatter diffraction method, and the influence of extension twins on texture was discussed. The results show that during the whole annealing process, the main texture component is always split toward transverse direction (TD) and the tilting angle hardly changes. However, the peak position changes between the two TD texture components. During continuous annealing, most pre-existing low-angle grain boundaries retain their original misorientation (including angles and axes) and hardly migrate. In addition, a new low-angle grain boundary occurs when two grains with similar orientation grow to connect with each other. Boundaries of pre-existing extension twins tend to migrate with different velocity. Moreover, with the migration, extension twins grow and gradually swallow their matrix grains completely, and thus re-orientate the TD orientations of twinned-grains from one side to another. Considering that nuclei display no preferred orientation between +TD and -TD, the changing peak position is considered to be caused by the migration of ETBs.y |
| Keyword | Texture Mg alloys Orientation Extension twins Grain boundary Quasi-in-situ EBSD |
| Funding Organization | Natural Science Foundation of Liaoning Province ; National Natural Science Foundation of China (NSFC) ; State Key Program of National Natural Science of China ; National Key Research and Development Program of China ; National Basic Research Program of China (973 Program) |
| DOI | 10.1016/j.matchar.2020.110697 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Liaoning Province[2020-MS-004] ; National Natural Science Foundation of China (NSFC)[51701218] ; National Natural Science Foundation of China (NSFC)[51601193] ; State Key Program of National Natural Science of China[51531002] ; National Key Research and Development Program of China[2016YFB0301104] ; National Basic Research Program of China (973 Program)[2013CB632202] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing |
| WOS ID | WOS:000598116700001 |
| Publisher | ELSEVIER SCIENCE INC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158808 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yan, H.; Chen, R. S. |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Grp Magnesium Alloys & Their Applicat, 62 Wencui Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Zhao, L. Y.,Yan, H.,Chen, R. S.,et al. Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy[J]. MATERIALS CHARACTERIZATION,2020,170:9. |
| APA | Zhao, L. Y.,Yan, H.,Chen, R. S.,&Han, En-Hou.(2020).Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy.MATERIALS CHARACTERIZATION,170,9. |
| MLA | Zhao, L. Y.,et al."Quasi-in-situ observations of low-angle grain boundaries, twins and texture evolution during continuous annealing in a cold-rolled Mg-Zn-Gd alloy".MATERIALS CHARACTERIZATION 170(2020):9. |
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