The results presented are part of two doctoral theses that are being carried out at the IMDEA Materials Institute within the framework of various research projects. On the one hand, Marcos Rodriguez presented a new methodology of micromechanical characterization of composite materials which is being developed within the European project MAAXIMUS (FP7-Transport). Rocio Muñoz made the second presentation, which focused on studying the mechanisms of deformation and fracture in γ-TiAl alloys in service conditions. This work is being developed within the framework of fundamental research project ALTIVA (MICINN) and is part of her doctoral thesis co-directed by IMDEA Materials Institute and Carlos III University of Madrid. Rocio´s poster won the second prize in the PhD Students category.