Weber, F.; Schestakow, I.; Raabe, D.; Roters, F.: Investigation of texture and microstructure in a bent monocrystalline Cu-nanowire using EBSD and crystal plasticity finite element simulations. 7th GAMM Seminar on Microstructures, Bochum, Germany (2008)
Raabe, D.; Roters, F.; Ma, D.; Zaefferer, S.; Friák, M.; Zaafarani, N.: Orientation patterning below indents and Bottom-up mechanical design by using quantum mechanics. Symposium Multiscale Plasticity of Crystalline Materials of the International Union of Theoretical and Applied Mechanics (IUTAM), TU Eindhoven, The Netherlands (2007)
Hantcherli, L.; Eisenlohr, P.; Roters, F.; Raabe, D.: Application of a Phenomenological Approach to Mechanical Twinning in Crystal Plasticity Finite Element Modelling of High-Mn Steel. EUROMAT 2007, Nürnberg, Germany (2007)
Raabe, D.; Zaafarani, N.; Roters, F.; Zaefferer, S.: 3D studies on orientation patterning below nanoindents in Cu single crystals using 3D EBSD and crystal plasticity finite element simulations. 3rd Intern. Indentation Workshop, Cavendish Lab., Cambridge, UK (2007)
Eisenlohr, P.; Roters, F.: Efficient and highly accurate reconstruction of ODFs with discrete orientations using integral approximation. GLADD Meeting, Katholieke Universiteit Leuven, Belgium (2007)
Ma, A.; Roters, F.; Raabe, D.: Introducing the Effect of Grain Boundaries into Crystal Plasticity FEM Using a Non Local Dislocation Density Based Constitutive Model. Theory and Application to FCC Bi-Crystals. Euromech Colloquium 463, MPI für Eisenforschung GmbH, Düsseldorf, Germany (2007)
Bieler, T. R.; Roters, F.; Raabe, D.: Computational modeling of TiAl microstructures which developed microcracked grain boundaries. Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin, Germany (2006)
Bieler, T. R.; Roters, F.; Raabe, D.: Computational modeling of TiAl microstructures which developed microcracked grain boundaries. GKSS Research Center, Geesthacht, Germany (2006)
Raabe, D.; Zaafarani, N.; Roters, F.: 3D Study on Texture and Size Effects Below Nanoindents in Cu Single Crystals Using 3D FIB-EBSD and Crystal Plasticity Finite Element Simulations. MRS Fall Conference, Boston, MA, USA (2006)
Bieler, T. R.; Crimp, M. A.; Roters, F.; Raabe, D.: Computational modeling of TiAl microstructures which developed microcracked grain boundaries. Institut für Metallkunde und Metallphysik RWTH-Aachen, Aachen, Germany (2006)
Bieler, T. R.; Crimp, M. A.; Roters, F.; Raabe, D.: Computational modeling of grain boundary microcrack nucleation using a slip interaction based definition of boundary character. Risø National Laboratories, Roskilde, Denmark (2006)
Nikolov, S.; Raabe, D.; Roters, F.: A Constitutive Model for Glassy Polymers with Shear Transformation Zones Plasticity and Reptation-Based Viscoelasticity. MMM Third International Conference Multiscale Materials Modeling, Freiburg, Germany (2006)
Roters, F.: Constitutive Modeling Based on Physical mechanisms. MMM Third International Conference Multiscale Materials Modeling, Freiburg, Germany (2006)
Zaafarani, N.; Roters, F.; Raabe, D.: A Study of Deformation and texture Evolution during Nanoindentation in a Cu Single Crystal using Phenomenological and Physically-Based Crystal Plasticity FE Models. MMM Third International Conference Multiscale Materials Modeling, Freiburg, Germany (2006)
Zaafarani, N.; Roters, F.; Raabe, D.: Recent Progress in the 3D Experimentation and Simulation of Nanoindents. Symposium Fundamentals of Deformation and Annealing, Manchester, UK (2006)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
“Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
Hydrogen embrittlement (HE) of steel is a great challenge in engineering applications. However, the HE mechanisms are not fully understood. Conventional studies of HE are mostly based on post mortem observations of the microstructure evolution and those results can be misleading due to intermediate H diffusion. Therefore, experiments with a…
The goal of this project is the investigation of interplay between the atomic-scale chemistry and the strain rate in affecting the deformation response of Zr-based BMGs. Of special interest are the shear transformation zone nucleation in the elastic regime and the shear band propagation in the plastic regime of BMGs.
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.
Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…