Roters, F.; Tjahjanto, D. D.; Eisenlohr, P.; Raabe, D.: Homogenisierung von Mehrphasenwerkstoffen zur Simulation von Umformprozessen. 13. Workshop Simulation in der Umformtechnik, Modellierung von Verfestigungsmechanismen in der Blechumformung, Institut für Umformtechnik, Universität Stuttgart, Germany (2010)
Tjahjanto, D. D.; Eisenlohr, P.; Roters, F.: Relaxed grain cluster (RGC) scheme for polycrystals: Model formulation and solution strategy. Computational Mechanics of Polycrystals (CMCn) Workshop 2010, Bad Honnef, Germany (2010)
Eisenlohr, P.; Kords, C.; Roters, F.; Raabe, D.: A non-local crystal plasticity model based on polar dislocation densities. 16th Int. Symp. on Plasticity and Its Current Applications, St. Kitts, St. Federation of Saint Kitts and Nevis (2010)
Eisenlohr, P.; Tjahjanto, D. D.; Roters, F.; Raabe, D.: Coarse-graining of polycrystal plasticity with the Relaxed Grain Cluster scheme. Seminar des Instituts für Technische Mechanik, Karlsruher Institut für Technologie, Karlsruhe, Germany (2009)
Roters, F.; Demir, E.; Eisenlohr, P.: On the calculation of the geometrically necessary dislocation density in crystal plasticity FEM models. 1st International Conference on Material Modelling (ICMM 1), Dortmund, Germany (2009)
Tjahjanto, D. D.; Roters, F.; Eisenlohr, P.: Application of the relaxed grain cluster homogenization scheme to deep drawing simulation of dual-phase steel. 1st International Conference on Material Modelling (ICMM 1), Dortmund, Germany (2009)
Zambaldi, C.; Roters, F.; Zaefferer, S.; Raabe, D.: Crystal plasticity modeling for property extraction and the microstructure properties relation of intermetallic -TiAl nased alloys. 1st International Conference on Material Modelling (ICMM 1), Dortmund, Germany (2009)
Peranio, N.; Schulz, S.; Li, Y. J.; Roters, F.; Raabe, D.; Masimov, M.; Springub, G.: Processing of dual-phase steel for automotive applications: Microstructure and texture evolution during annealing and numerical simulation by cellular automata. Euromat 2009 (European Congress and Exhibition on Advanced Materials and Processes), Glasgow, UK (2009)
Eisenlohr, P.; Tjahjanto, D. D.; Roters, F.; Raabe, D.: Analysis of the relaxed grain cluster polycrystal homogenization scheme in texture prediction. 15th International Conference on the Strength of Materials (ICSMA-15), Dresden, Germany (2009)
Ma, D.; Raabe, D.; Roters, F.; Maaß, R.; van Swygenhoven, H.: Crystal plasticity finite element study on small scale plasticity of micropillars. 15th International Conference on the Strength of Materials (ICSMA-15), Dresden, Germany (2009)
Zambaldi, C.; Roters, F.; Raabe, D.: Crystal plasticity modeling and experiments for the microstructureproperties relationship in gamma TiAl based alloys. 15th International Conference on the Strength of Materials (ICSMA-15), Dresden, Germany (2009)
Ma, D.; Raabe, D.; Roters, F.; Maaß, R.; Van Swygenhoven, H.: Crystal Plasticity finite element method study on small scale plasticity. Deutsche Physikalische Gesellschaft 2009, Dresden, Germany (2009)
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.