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Advanced Manufacturing-Driven Multiscale Nanostructured Metals: A Review.

Xiangren Bai1,2,3, Dongpeng Hua1,2,3, Jian Lu1,2,3

  • 1Hongqiao Research Institute for Light Metal, Department of Mechanical Engineering, City University of Hong Kong, Hong Kong 999077, China.

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Summary
This summary is machine-generated.

Advanced manufacturing enables novel nanostructured metals with superior properties. This review explores top-down and bottom-up methods for designing these advanced materials, highlighting their potential applications.

Keywords:
DepositionManufacturingMetalNanostructurePlastic Deformation

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Area of Science:

  • Materials Science
  • Metallurgy
  • Nanotechnology

Background:

  • Advanced manufacturing, including additive manufacturing, expands material possibilities.
  • Enables creation of far-from-equilibrium structures and multiscale nanostructured metals.
  • Offers exceptional structural and functional properties.

Purpose of the Study:

  • Review multiscale nanostructural design in metallic materials.
  • Examine top-down and bottom-up advanced manufacturing routes.
  • Elucidate thermodynamic, kinetic, and geometric driving forces.

Main Methods:

  • Analysis of severe plastic deformation (top-down) and physical/chemical vapor deposition (bottom-up).
  • Illustrating distinctive roles in structure formation.
  • Examining strengthening and toughening mechanisms.

Main Results:

  • Multiscale nanostructural design is driven by specific manufacturing routes.
  • Hierarchical structures exhibit enhanced strength and toughness.
  • Detailed mechanisms of microscale dislocation regulation and mesoscopic deformation coordination.

Conclusions:

  • Multiscale nanostructured metals offer significant performance advantages.
  • Emerging manufacturing technologies enable deeper integration of structural design.
  • Future pathways focus on synergistic design and manufacturing approaches.