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  Nanostructural metallic materials: Structures and mechanical properties

Sun, L., Wu, G., Wang, Q., & Lu, J. (2020). Nanostructural metallic materials: Structures and mechanical properties. Materials Today, 38, 114-135. doi:10.1016/j.mattod.2020.04.005.

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Nanostructural metallic materials_ Structures and mechanical properties _ Elsevier Enhanced Reader.pdf (Publisher version), 12MB
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Nanostructural metallic materials_ Structures and mechanical properties _ Elsevier Enhanced Reader.pdf
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 Creators:
Sun, Ligang1, 2, Author
Wu, Ge1, 3, Author              
Wang, Qing1, 4, Author
Lu, Jian5, 6, 7, Author              
Affiliations:
1Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China, ou_persistent22              
2School of Science, Harbin Institute of Technology, Shenzhen 518055, China, ou_persistent22              
3High-Entropy Alloys, Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_3010672              
4Laboratory for Microstructures, Institute of Materials, Shanghai University, Shanghai 200072, China, ou_persistent22              
5Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong, China, ou_persistent22              
6Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Hong Kong, China, ou_persistent22              
7Center for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen, China, ou_persistent22              

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Free keywords: Ductility; Economic and social effects; Grain refinement; Metallic glass; Metals; Nanostructures; Structural metals, Future innovations; High strength and high ductilities; Materials scientist; Microscopic mechanisms; Nano-sized crystals; Strength and ductilities; Structural approach; Technological pathways, Nanocrystalline materials
 Abstract: The trade-off of strength and ductility of metals has long plagued materials scientists. To resolve this issue, great efforts have been devoted over the past decades to developing a variety of technological pathways for effectively tailoring the microstructure of metallic materials. Here, we review the recent advanced nanostructure design strategies for purposely fabricating heterogeneous nanostructures in crystalline and non-crystalline metallic materials. Several representative structural approaches are introduced, including (1) hierarchical nanotwinned (HNT) structures, extreme grain refinement and dislocation architectures etc. for crystalline metals; (2) nanoglass structure for non-crystalline alloys, i.e. metallic glasses (MGs); and (3) a series of supra-nano-dual-phase (SNDP) nanostructures for composite alloys. The mechanical properties are further optimized by manipulating these nanostructures, especially coupling multiple advanced nanostructures into one material. Particularly, the newly developed SNDP nanostructures greatly enrich the nanostructure design strategies by utilizing supra-nano sized crystals and MGs, which exhibit unique size and synergistic effects. The origins of these gratifying properties are discussed in this review. Furthermore, based on a comprehensive understanding of microscopic mechanisms, a broad vision of strategies towards high strength and high ductility are proposed to promote future innovations. © 2020 The Author(s)

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Language(s): eng - English
 Dates: 2020-09
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.mattod.2020.04.005
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Title: Materials Today
  Abbreviation : Mater. Today
Source Genre: Journal
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Publ. Info: Amsterdam, Netherlands : Elsevier Science
Pages: - Volume / Issue: 38 Sequence Number: - Start / End Page: 114 - 135 Identifier: ISSN: 1369-7021
CoNE: https://pure.mpg.de/cone/journals/resource/1369-7021