Self-patterning Gd nano-fibers in Mg-Gd alloys

Li, Yangxin; Wang, Jian; Chen, Kaiguo; Shao, Meiyue; Shen, Yao; Jin, Li; Zhu, Guo-zhen

doi:10.1038/srep38537

Title: Self-patterning Gd nano-fibers in Mg-Gd alloys

Journal Article · Wed Dec 07 00:00:00 EST 2016 · Scientific Reports

DOI:https://doi.org/10.1038/srep38537· OSTI ID:1390057

Li, Yangxin ^[1]; Wang, Jian ^[2]; Chen, Kaiguo ^[3]; Shao, Meiyue ^[4]; Shen, Yao ^[5]; Jin, Li ^[4]; Zhu, Guo-zhen ^[5]

Shanghai Jiao Tong Univ. (China). State Key Lab. of Metal Matrix Composites; Shanghai Jiao Tong Univ. (China). National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering
Univ. of Nebraska, Lincoln, NE (United States). Dept. of Mechanical and Materials Engineering
China Academy of Engineering Physics, Mianyang, Sichuan (China). National Key Lab of Shockwave and Detonation Physics, Inst. of Fluid Physics
Shanghai Jiao Tong Univ. (China). National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering
Shanghai Jiao Tong Univ. (China). State Key Lab. of Metal Matrix Composites

Manipulating the shape and distribution of strengthening units, e.g. particles, fibers, and precipitates, in a bulk metal, has been a widely applied strategy of tailoring their mechanical properties. Here, we report self-assembled patterns of Gd nano-fibers in Mg-Gd alloys for the purpose of improving their strength and deformability. 1-nm Gd nano-fibers, with a $$\langle$$c$$\rangle$$ -rod shape, are formed and hexagonally patterned in association with Gd segregations along dislocations that nucleated during hot extrusion. Such Gd-fiber patterns are able to regulate the relative activities of slips and twinning, as a result, overcome the inherent limitations in strength and ductility of Mg alloys. Finally, this nano-fiber patterning approach could be an effective method to engineer hexagonal metals.

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Research Organization:: Univ. of Nebraska, Lincoln, NE (United States). Dept. of Mechanical and Materials Engineering

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC)

Grant/Contract Number:: YK2015-0202002

OSTI ID:: 1390057

Journal Information:: Scientific Reports, Vol. 6, Issue 1; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 8 works

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References (18)

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