Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates
文献类型：期刊论文
| 作者 | Pathak, Siddhartha; Velisavljevic, Nenad; Baldwin, J. Kevin; Jain, Manish; Zheng, Shijian; Mara, Nathan A.; Beyerlein, Irene J.; Pathak, S (reprint author), Univ Nevada, Chem & Mat Engn, Reno, NV 89557 USA. |
| 刊名 | NATURE PUBLISHING GROUP
 |
| 出版日期 | 2017-08-15 |
| 卷号 | 7页码:- |
| ISSN号 | 2045-2322 |
| 英文摘要 | Magnesium has attracted attention worldwide because it is the lightest structural metal. However, a high strength-to-weight ratio remains its only attribute, since an intrinsic lack of strength, ductility and low melting temperature severely restricts practical applications of Mg. Through interface strains, the crystal structure of Mg can be transformed and stabilized from a simple hexagonal (hexagonal close packed hcp) to body center cubic (bcc) crystal structure at ambient pressures. We demonstrate that when introduced into a nanocomposite bcc Mg is far more ductile, 50% stronger, and retains its strength after extended exposure to 200C, which is 0.5 times its homologous temperature. These findings reveal an alternative solution to obtaining lightweight metals critically needed for future energy efficiency and fuel savings.; Magnesium has attracted attention worldwide because it is the lightest structural metal. However, a high strength-to-weight ratio remains its only attribute, since an intrinsic lack of strength, ductility and low melting temperature severely restricts practical applications of Mg. Through interface strains, the crystal structure of Mg can be transformed and stabilized from a simple hexagonal (hexagonal close packed hcp) to body center cubic (bcc) crystal structure at ambient pressures. We demonstrate that when introduced into a nanocomposite bcc Mg is far more ductile, 50% stronger, and retains its strength after extended exposure to 200C, which is 0.5 times its homologous temperature. These findings reveal an alternative solution to obtaining lightweight metals critically needed for future energy efficiency and fuel savings. |
| 学科主题 | Multidisciplinary Sciences |
| 语种 | 英语 |
| 资助机构 | National Science Foundation (NSF) - Civil, Mechanical and Manufacturing Innovation (CMMI) Early Concept Grants for Exploratory Research (EAGER) [1541918]; National Science Foundation Designing Materials to Revolutionize and Engineer our Future (NSF-DMREF) program; University of Nevada, Reno NAASIC (Nevada Advanced Autonomous Systems Innovation Center) Seed Funding for Interdisciplinary Research; University of Nevada, Reno Research Enhancement Grants (REG); DOE-NNSA [DE-NA0001974]; NSF; DOE Office of Science [DE-AC02-06CH11357]; National Nuclear Security Administration of the U.S. Department of Energy [DE-AC52-06NA25396] |
| 公开日期 | 2018-01-10 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79146]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pathak, S (reprint author), Univ Nevada, Chem & Mat Engn, Reno, NV 89557 USA. |
| 推荐引用方式 GB/T 7714 | Pathak, Siddhartha,Velisavljevic, Nenad,Baldwin, J. Kevin,et al. Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates[J]. NATURE PUBLISHING GROUP,2017,7:-. |
| APA | Pathak, Siddhartha.,Velisavljevic, Nenad.,Baldwin, J. Kevin.,Jain, Manish.,Zheng, Shijian.,...&Pathak, S .(2017).Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates.NATURE PUBLISHING GROUP,7,-. |
| MLA | Pathak, Siddhartha,et al."Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates".NATURE PUBLISHING GROUP 7(2017):-. |
入库方式： OAI收割
来源：金属研究所
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