Mechanical properties of materials are mainly determined by their microstructure. Improved synthesis routes, e.g. severe plastic deformation (SPD), electrochemical deposition, etc. allows the production of tailored microstructures down to the nanometer regime, which in turn exhibit extraordinary mechanical properties. The focus of this symposium is on understanding the material properties vs. structure relationship for fine grained and nanostructured materials. In this context, not only the behavior of monolithic ultra-fine grained and nanocrystalline materials are of interest, but also tailored materials and nano-composites are in focus. Properties of interest include, but are not limited to, strength and ductility, fracture toughness, fatigue resistance, as well as deformation and damage mechanisms. Also, contributions on process and microstructure controlling synthesis parameters for tailoring microstructures and investigations on microstructure stability during thermal and/or mechanical loading of these materials are welcome.