Dissipative properties of nanostructured materials

Results of studies of the effect of the size of micro-and substructure elements (grains, twin domains, etc) on the dissipative properties of materials have been generalized. It has been shown that when the size of the microstructure elements of materials decreases to nanoscale, their dissipative properties change qualitatively. This is due to a change in mechanical energy dissipation mechanism on the transition of material to nanostructured state. The possibility of creating a new class of highly damping hard coatings based on nanostructured materials is discussed. __________ Translated from Problemy Prochnosti, No. 5, pp. 96–104, September–October, 2008.