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| Hall-Petch relationship, twinning responses and their dependences on grain size in the rolled Mg-Zn and Mg-Y alloys | |
| Shi, B. Q.; Cheng, Y. Q.; Shang, X. L.; Yan, H.; Chen, R. S.; Ke, W. | |
| 2019-01-16 | |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| ISSN | 0921-5093 |
| Volume | 743Pages:558-566 |
| Abstract | The rolled Mg-1.02Zn alloys with strong basal-textures and Mg-0.76Y alloys with weakened basal-textures were subjected to annealing in order to obtain different grain structures meanwhile keeping the textures nearly unchanged. Then tension testing and microstructure examination were applied to the Mg-1.02Zn and Mg-0.76Y alloys with different grain structures, aiming to validate the Hall-Petch relationship and related inner deformation modes. The tensile testing results show that the Mg-1.02Zn specimens exhibit two slope (k) of Hall-Petch relationships, that is, the coarse-grained ( > 49 mu m) specimens reveal an abnormally enhanced tendency of k (similar to 472 MPa mu m(1/2)) with increased strains while fine-grained (<= 49 mu m) specimens exhibit a slightly decreased tendency of k with increased strains. Contrastively, the Mg-0.76Y specimens follow a single slope of Hall-Petch relationship well in the grain regime with slightly declined k with increased strains. That could be attributed to the distinguished twinning responses and/or twinning-slipping interactions dependence of grain size in the studied alloys with different initial textures. |
| Keyword | Hall-Petch relationship Twinning Texture Grain size Magnesium alloys |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000456891500063 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/81448 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Shi, B. Q.,Cheng, Y. Q.,Shang, X. L.,et al. Hall-Petch relationship, twinning responses and their dependences on grain size in the rolled Mg-Zn and Mg-Y alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,743:558-566. |
| APA | Shi, B. Q.,Cheng, Y. Q.,Shang, X. L.,Yan, H.,Chen, R. S.,&Ke, W..(2019).Hall-Petch relationship, twinning responses and their dependences on grain size in the rolled Mg-Zn and Mg-Y alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,743,558-566. |
| MLA | Shi, B. Q.,et al."Hall-Petch relationship, twinning responses and their dependences on grain size in the rolled Mg-Zn and Mg-Y alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 743(2019):558-566. |
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