Three-dimensional finite element analysis of stresses and energy density distributions around γ′ before coarsening loaded in the [1 1 0]-direction in Ni-based superalloy

A three-dimensional (3D) anisotropic finite element (FE) analysis was employed to analyse the features about the elastic strain energy density, von Mises stress and hydrostatic pressure distributions in Ni-based superalloy single crystals when external loads applied along the [1 1 0]-direction. The asymmetry of the strain energy density, the von Mises stress and hydrostatic pressure could be used to predict the raft morphology for alloys exhibiting a positive or negative misfit. The reason was briefly discussed.