Nano-additive manufacturing of multilevel strengthened aluminum matrix composites

Chenwei Shao; Haoyang Li; Yankun Zhu; Peng Li; Haoyang Yu; Zhefeng Zhang; Herbert Gleiter; André McDonald; James Hogan

doi:10.1088/2631-7990/ac9ba2

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Volume 5 Issue 1

Jan. 2023

Article Contents

Article Navigation > International Journal of Extreme Manufacturing > 2023 > 5(1): 015102

Shao C W, Li H Y, Zhu Y K, Li P, Yu H Y, Zhang Z F, Gleiter H, McDonald A, Hogan J. 2023. Nano-additive manufacturing of multilevel strengthened aluminum matrix composites. Int. J. Extrem. Manuf. 5 015102.

Citation:

Shao C W, Li H Y, Zhu Y K, Li P, Yu H Y, Zhang Z F, Gleiter H, McDonald A, Hogan J. 2023. Nano-additive manufacturing of multilevel strengthened aluminum matrix composites. Int. J. Extrem. Manuf. 5 015102.

Nano-additive manufacturing of multilevel strengthened aluminum matrix composites

doi: 10.1088/2631-7990/ac9ba2

More Information

1. Department of Mechanical Engineering, University of Alberta, Edmonton T6G 1H9, Canada;
2. Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;
3. School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China;
4. nanoFAB Fabrication and Characterization Centre, University of Alberta, Edmonton T6G 1H9, Canada;
5. Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany

Publish Date: 2023-01-30

Abstract

Nanostructured materials are being actively developed, while it remains an open question how to rapidly scale them up to bulk engineering materials for broad industrial applications. This study propose an industrial approach to rapidly fabricate high-strength large-size nanostructured metal matrix composites and attempts to investigate and optimize the deposition process and strengthening mechanism. Here, advanced nanocrystalline aluminum matrix composites (nanoAMCs) were assembled for the first time by a novel nano-additive manufacturing method that was guided by numerical simulations (i.e. the in-flight particle model and the porefree deposition model). The present nanoAMC with a mean grain size<50 nm in matrix exhibited hardness eight times higher than the bulk aluminum and shows the highest hardness among all Al–Al₂O₃ composites reported to date in the literature, which are the outcome of controlling multiscale strengthening mechanisms from tailoring solution atoms, dislocations, grain boundaries, precipitates, and externally introduced reinforcing particles. The present high-throughput strategy and method can be extended to design and architect advanced coatings or bulk materials in a highly efficient (synthesizing a nanostructured bulk with dimensions of 50 × 20 × 4 mm³ in 9 min) and highly flexible (regulating the gradient microstructures in bulk) way, which is conducive to industrial production and application.
Keywords

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Nano-additive manufacturing of multilevel strengthened aluminum matrix composites

doi: 10.1088/2631-7990/ac9ba2

1. Department of Mechanical Engineering, University of Alberta, Edmonton T6G 1H9, Canada;

2. Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China;

3. School of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, People's Republic of China;

4. nanoFAB Fabrication and Characterization Centre, University of Alberta, Edmonton T6G 1H9, Canada;

5. Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen 76344, Germany

Publish Date: 2023-01-30

Key words:

high-throughput fabrication /
bulk nanoAMC /
low-temperature additive manufacturing /
multi-level strengthening

Abstract:

Nanostructured materials are being actively developed, while it remains an open question how to rapidly scale them up to bulk engineering materials for broad industrial applications. This study propose an industrial approach to rapidly fabricate high-strength large-size nanostructured metal matrix composites and attempts to investigate and optimize the deposition process and strengthening mechanism. Here, advanced nanocrystalline aluminum matrix composites (nanoAMCs) were assembled for the first time by a novel nano-additive manufacturing method that was guided by numerical simulations (i.e. the in-flight particle model and the porefree deposition model). The present nanoAMC with a mean grain size<50 nm in matrix exhibited hardness eight times higher than the bulk aluminum and shows the highest hardness among all Al–Al₂O₃ composites reported to date in the literature, which are the outcome of controlling multiscale strengthening mechanisms from tailoring solution atoms, dislocations, grain boundaries, precipitates, and externally introduced reinforcing particles. The present high-throughput strategy and method can be extended to design and architect advanced coatings or bulk materials in a highly efficient (synthesizing a nanostructured bulk with dimensions of 50 × 20 × 4 mm³ in 9 min) and highly flexible (regulating the gradient microstructures in bulk) way, which is conducive to industrial production and application.