Effect of copper segregation at low-angle grain boundaries on the mechanisms of plastic relaxation in nanocrystalline aluminum: an atomistic study

Abstract

The paper studies the mechanisms of plastic relaxation and mechanical response depending on the concentration of Cu atoms at grain boundaries (GBs) in nanocrystalline aluminum with molecular dynamics simulations. A nonmonotonic dependence of the critical resolved shear stress on the Cu content at GBs is shown