Crystal plasticity modeling of non-Schmid yield behavior: from Ni₃Al single crystals to Ni-based superalloys

A Crystal Plasticity Finite Element (CPFE) framework is proposed for modeling the non-Schmid yield behavior of L12 type Ni3Al crystals and Ni-based superalloys. This relies on estimation model parameters directly from orientation- temperature-dependent experimental stress data. The inelastic deformation extended to precipitate phase superalloys in a homogenized dislocation density based crystal plasticity framework. used simulate single superalloy, CMSX-4, temperature range 260-1304 K. Model predictions are general agreement with experiments. also made regarding tension-compression asymmetry dominant slip mechanism at over standard stereographic triangle various temperatures both these materials. These provide valuable insights underlying (orientation- temperature-dependent) mechanisms yield. In this regard, may serve as standalone analytical predicting stress, function orientation temperature.