Evading strength and ductility trade-off in an inverse nacre structured magnesium matrix nanocomposite
Luo X, Zhao K, He X, Bai Y, De Andrade V, Zaiser M, An L, Liu J (2022)
Publication Type: Journal article
Publication year: 2022
Journal
Book Volume: 228
Article Number: 117730
DOI: 10.1016/j.actamat.2022.117730
Abstract
Mimicking nacre structure is an often-used strategy for developing materials which combine high strength and high toughness. Here, a novel strategy, named inverse nacre structure, is proposed where elongated and curled soft constituents are embedded in a matrix of hard constituent to form an ordered brick-and-mortar arrangement. This strategy is demonstrated in a particle reinforced metal matrix composite, using pure Mg as the soft phase and SiC nanoparticle reinforced Mg as the hard phase. The resulting nanocomposite yields high strength, and especially high tensile elongation which is five times that of the homogeneous counterpart. The superior comprehensive strengthening-toughening effect originates from the tailored inverse nacre structure which enables a stable microcrack-multiplication process by sufficiently promoting strain hardening so as to avoid any significant decrease in post-ultimate tensile strength. This strategy, while demonstrated here for the specific case of particle reinforced Mg, is not restricted to any particular material system but constitutes a generic pathway for the development of high-performance materials for engineering applications.
Authors with CRIS profile
Involved external institutions
Southwest Jiaotong University / 西南交通大学
China (CN)
University of Central Florida (UCF)
United States (USA) (US)
The Advanced Photon Source
United States (USA) (US)
Dongguan University of Technology (DGUT) / 东莞理工学院
China (CN)
China (CN)
University of Central Florida (UCF)
United States (USA) (US)
The Advanced Photon Source
United States (USA) (US)
Dongguan University of Technology (DGUT) / 东莞理工学院
China (CN)
How to cite
APA:
Luo, X., Zhao, K., He, X., Bai, Y., De Andrade, V., Zaiser, M.,... Liu, J. (2022). Evading strength and ductility trade-off in an inverse nacre structured magnesium matrix nanocomposite. Acta Materialia, 228. https://doi.org/10.1016/j.actamat.2022.117730
MLA:
Luo, Xi, et al. "Evading strength and ductility trade-off in an inverse nacre structured magnesium matrix nanocomposite." Acta Materialia 228 (2022).
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