Projects SFB/Transregio 103
C4 Microstructural creep model for superalloys under complex thermomechanical loads
Project C4 aims at clarifying various questions related to the physical metallurgy of superalloys. A 3D dislocation dynamics model will be used to find out whether recovery processes induced by dislocation climb control the deformation kinetics under creep conditions and which microstructural influences are to be expected. Furthermore, the role of slowly diffusing central d-shell elements on creep solid solution strengthening will be clarified. Microstructure and dislocation climb will be integrated into a continuum crystal-plasticity-creep-model, a non-local formulation of which will also be used to study and describe scale effects that occur during micro and nanoindentation.