Effect of short-range order on the mechanical behaviors of tensile and shear for NiCoFeCr

Abstract

We adopt the modified embedded atom potentials based classical molecular dynamics in combination with the similar atomic environment method to investigate the effects of different short-range orders on the mechanical behaviors of NiCoFeCr under the tensile and shear load conditions. Results indicate that the tensile and shear loads induce the elastic deformation, non-evenly yield deformation, and evenly plastic deformation. The formation of partial dislocations and stacking faults' core as well as the twin is the key factor of plastic deformation. The short-range order enhances the strength of NiCoFeCr.