Discovery of a bulk C36-type MgZn2 structure step by step transformed from the C14 prototype laves phase structure
文献类型：期刊论文
| 作者 | Yang, Tong4; Lu, Jiangbo1; Li, Kai4; Kong, Yi4; Zhang, Zhenjun5; Long, Qianxin2,3; Lan, Xinyue4; Lu, Qiang4; Du, Yong4 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
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| 出版日期 | 2022 |
| 卷号 | 57期号:4页码:2999-3009 |
| ISSN号 | 0022-2461 |
| DOI | 10.1007/s10853-021-06711-6 |
| 通讯作者 | Li, Kai(leking@csu.edu.cn) ; Kong, Yi(yikong@csu.edu.cn) |
| 英文摘要 | MgZn2 phase is the prototype of hexagonal C14 Laves phase, acting as an important intermetallic compound. Here we first observe the atomic-scale structure of C36-type MgZn2 Laves phase by high-angle annular dark-field scanning transmission electron microscopy. Solid atomic-scale evidence is provided for the finding that C14 structural precipitate can totally transform to C36 structure during extremely long-time over-aging at medium temperatures in an Al-Zn-Mg alloy, rather than C36 stacking faults as previously reported. Intermediate structures between C14 and C36 were observed along [0001] and [(1) over bar2 (1) over bar0] directions. Two possible transformation paths are illustrated based on the synchroshear mechanism, and their atomic resolution evidence is provided. Ab initio molecular dynamics calculations support our inference on the transformation process. This type of Laves phase transformation provides a new strategy for designing alloys that contain Laves phases as hardening precipitates. |
| 资助项目 | National Natural Science Foundation of China[52071340] ; National Natural Science Foundation of China[51820105001] ; National Natural Science Foundation of China[51771234] ; Youth Innovation Promotion Association CAS[2021192] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000737750100084 |
| 资助机构 | National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/173620]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, Kai; Kong, Yi |
| 作者单位 | 1.Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China 2.Guilin Univ Elect Technol, Guangxi Key Lab Informat Mat, Guilin 541004, Peoples R China 3.Guilin Univ Elect Technol, Sch Mat Sci & Engn, Guilin 541004, Peoples R China 4.Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Tong,Lu, Jiangbo,Li, Kai,et al. Discovery of a bulk C36-type MgZn2 structure step by step transformed from the C14 prototype laves phase structure[J]. JOURNAL OF MATERIALS SCIENCE,2022,57(4):2999-3009. |
| APA | Yang, Tong.,Lu, Jiangbo.,Li, Kai.,Kong, Yi.,Zhang, Zhenjun.,...&Du, Yong.(2022).Discovery of a bulk C36-type MgZn2 structure step by step transformed from the C14 prototype laves phase structure.JOURNAL OF MATERIALS SCIENCE,57(4),2999-3009. |
| MLA | Yang, Tong,et al."Discovery of a bulk C36-type MgZn2 structure step by step transformed from the C14 prototype laves phase structure".JOURNAL OF MATERIALS SCIENCE 57.4(2022):2999-3009. |
入库方式： OAI收割
来源：金属研究所
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