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...

The effects of orientation on fatigue crack propagation Ni3Al alloys under the super-gravity condition were studied by using molecular dynamics method. research found that initiation and mechanisms different for models: [001](010) germinated in form blunting damage voids [1̄10](110) began as slip bands. For [112̄](111) crack, same crack. In stage, main deformation all models bands, but directions...