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Strong, Ductile, and Thermally Stable bcc-Mg Nanolaminates
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.
2017-08-15
发表期刊NATURE PUBLISHING GROUP
ISSN2045-2322
卷号7页码:-
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.
部门归属[pathak, siddhartha ; jain, manish] univ nevada, chem & mat engn, reno, nv 89557 usa ; [velisavljevic, nenad] los alamos natl lab, shock & detonat phys, los alamos, nm usa ; [baldwin, j. kevin ; zheng, shijian ; mara, nathan a.] los alamos natl lab, ctr integrated nanotechnol, los alamos, nm usa ; [zheng, shijian] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china ; [mara, nathan a.] los alamos natl lab, inst mat sci, los alamos, nm usa ; [beyerlein, irene j.] univ calif santa barbara, dept mech engn, dept mat, santa barbara, ca 93106 usa
学科领域Multidisciplinary Sciences
资助者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]
收录类别SCI
语种英语
WOS记录号WOS:000407570000141
引用统计
被引频次:61[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/79146
专题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):-.
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