Abstract :
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.
