New polytypes of LPSO structures in an Mg-Co-Y alloy
文献类型：期刊论文
| 作者 | Jin, Q. Q.1,3; Shao, X. H.1; Hu, X. B.1,2; Peng, Z. Z.1,3; Ma, X. L.1 |
| 刊名 | PHILOSOPHICAL MAGAZINE
 |
| 出版日期 | 2017 |
| 卷号 | 97期号:1页码:1-16 |
| 关键词 | Magnesium alloys long-period stacking ordered (LPSO) structure scanning transmission electron microscopy electron diffraction |
| ISSN号 | 1478-6435 |
| DOI | 10.1080/14786435.2016.1241909 |
| 通讯作者 | Ma, X. L.(xlma@imr.ac.cn) |
| 英文摘要 | The magnesium alloys containing long-period stacking ordered (LPSO) structures exhibit excellent mechanical properties. Each LPSO structure is known to contain either ABCA or ABC building block and feature its own stacking sequences. By atomic-scale high-angle annular dark field scanning transmission electron microscopy, we find the co-existence of ABCA and ABC building block in a single LPSO structure of the as-cast Mg92Co2Y6 (at.%) alloy, leading to the formation of six new polytypes of the LPSO structures determined as 29H, 51R, 60H, 72R, 102R and 192R. The lattice parameter of each LPSO structure is derived as a(LPSO) =a(Mg) = 0.321 nm and c(LPSO) = 1/2n x c(Mg) (n presents the number of basal layers in a unit cell). The stacking sequences and the space groups of these newly identified LPSO structures are proposed based on the electron diffraction and atomic-scale aberration-corrected high-resolution images. A random distribution of Co/Y elements in the basal planes of ABCA and ABC structural units is also observed and discussed. |
| 资助项目 | National Science Foundation of China[51301177] ; Innovation Fund of IMR[SCJJ-2013-PY-08] ; Innovation Fund of IMR[2015-PY08] ; Youth Fund of SYNL fund[2015FP18] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000390644600001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Science Foundation of China ; Innovation Fund of IMR ; Youth Fund of SYNL fund |
| 源URL | [http://ir.imr.ac.cn/handle/321006/123445]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Ma, X. L. |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Peoples R China 2.Japan Fine Ceram Ctr, Nanostruct Res Lab, Nagoya, Aichi 4568587, Japan 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Q. Q.,Shao, X. H.,Hu, X. B.,et al. New polytypes of LPSO structures in an Mg-Co-Y alloy[J]. PHILOSOPHICAL MAGAZINE,2017,97(1):1-16. |
| APA | Jin, Q. Q.,Shao, X. H.,Hu, X. B.,Peng, Z. Z.,&Ma, X. L..(2017).New polytypes of LPSO structures in an Mg-Co-Y alloy.PHILOSOPHICAL MAGAZINE,97(1),1-16. |
| MLA | Jin, Q. Q.,et al."New polytypes of LPSO structures in an Mg-Co-Y alloy".PHILOSOPHICAL MAGAZINE 97.1(2017):1-16. |
入库方式： OAI收割
来源：金属研究所
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