Nano May 2006

Journal of Materials Science

, Volume 42, Issue 5, pp 1403-1414

First online:

Structural nanocrystalline materials: an overview

  • Carl C. KochAffiliated withDepartment of Materials Science and Engineering, North Carolina State University Email author 

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This paper presents a brief overview of the field of structural nanocrystalline materials. These are materials in either bulk, coating, or thin film form whose function is for structural applications. The major processing methods for production of bulk nanocrystalline materials are reviewed. These methods include inert gas condensation, chemical reaction methods, electrodeposition, mechanical attrition, and severe plastic deformation. The stability of the nanocrystalline microstructure is discussed in terms of strategies for retardation of grain growth. Selected mechanical properties of nanocrystalline materials are described; specifically strength and ductility. Corrosion resistance is briefly addressed. Examples of present or potential applications for structural nanocrystalline materials are given.