Effects of crystallographic orientation, temperature and void on tensile mechanical properties of Ni-Co single crystal nanopillars

Abstract In this present contribution, molecular dynamics simulation was performed to investigate the tensile response and deformation mechanism under different influencing factors, such as Co content, crystallographic orientation, rate, temperature and void. It is concluded that the number of stair-rod dislocation is the maximum during the deformation process of single crystal nanopillars with the Co content of 10%. It is interesting that the aggregation formed by five stacking fault tetrahedron, whose edge is composed of stair-dislocation formed by the combination of the stacking fault and another incomplete dislocation, is present, responsible for the rise of stress in the plastic deformation curve (0.1