supported by the National Basic Research Program of China (Grant Nos. 2012CB932203 and 2012CB937500);the National Natural Science Foundation of China (Grants No. 11002151,10721202and 11072243)
In the present work,the mechanical properties of bulk nanocrystalline(NC) bcc Fe under tensile deformation have been studied by molecular dynamics(MD) simulations.Average flow stress was found to decrease with grain r...