: Nanocrystalline materials compared to conventional coarse-grained polycrystalline materials, exhibit unique behavior and properties such as melting in lower temperatures. The main source of this difference in behavior with respect to conventional coarse-grained polycrystalline materials, is high volume fraction of grain boundaries in nanocrystalline materials. Since this boundary regions have different structure and energy states with respect to grains, the properties of nanocrystalline materials can not be accurately describe by dir=ltr Keywords: thermodynamic, nanostructured Al, grain size, grain boundary network, premelting, molecular dynamic.
