Roters, F.; Hantcherli, L.; Eisenlohr, P.: Incorporating Twinning into the Crystal Plasticity Finite Element Method. International Plasticity Conference 2009, Virgin Islands, USA (2009)
Ma, D.; Friák, M.; Knezevic, M.; Kalidindi, S. R.; Lebensohn, R. A.; Roters, F.; Neugebauer, J.; Raabe, D.: Polycrystal coarse graining of elastic properties for Ti-Nb biomedical grades using ab-initio single crystal elastic constants. International Plasticity Conference 2009, Virgin Islands, USA (2009)
Zambaldi, C.; Roters, F.; Zaefferer, S.; Raabe, D.: Ductility of Gamma-TiAl-Based Microstructures in the Light of Deformation Mode Interaction-Crystal Plasticity Modeling and Micro-Mechanical Experiments. MRS Fall Conference 2008, Boston, MA, USA (2008)
Butz, A.; Rist, T.; Springub, B.; Roters, F.; Schulz, S.; Peranio, N.; Lossau, S.: From Cold Rolling to Deep Drawing - Microstructure Based Modeling of a Dual Phase Steel. NUMISHEET 2008, Interlaken, Switzerland (2008)
Bieler, T. R.; Crimp, M. A.; Eisenlohr, P.; Roters, F.; Raabe, D.: Physically based Approach for Predicting Damage Nucleation at Grain Boundaries in Commercial Purity Ti. 15th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Eisenlohr, P.; Roters, F.: Accurate Texture Reconstruction with a Set of Orientations Based on Integral Approximation of the Scaled Orientation Distribution Function. 15 th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Hantcherli, L.; Eisenlohr, P.; Roters, F.; Raabe, D.: On the Role of Mechanical Twinning in Microstructure Evolution of High Manganese Steels: Experiments and Modelling. 15th International Conference on Textures of Materials (ICOTOM15), Carnegie Mellon University Center in Pittsburgh, PA, USA (2008)
Ma, D.; Raabe, D.; Roters, F.; Friák, M.; Neugebauer, J.: Modeling Rolling Textures of Beta Ti Alloys Using Constitutive Data From Ab-initio Simulations. 15 th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Zaafarani, N.; Roters, F.; Zaefferer, S.; Raabe, D.: Tomographic 3D EBSD Analysis of Deformation and Rotation Patterns around Nanoindents. 15th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Zambaldi, C.; Zaefferer, S.; Roters, F.; Raabe, D.: Micro-mechanical implications of TiAl order domains. The annual plenary meeting of the EU sixth framework programme IMPRESS integrated project, Camogli, Italy (2008)
Zambaldi, C.; Zaefferer, S.; Roters, F.: Order domains in intermetallic TiAl - EBSD characterization and crystal plasticity modeling. GLADD meeting, University of Gent, Gent, Belgium (2008)
Bieler, T. R.; Eisenlohr, P.; Kumar, D.; Crimp, M. A.; Roters, F.; Raabe, D.: Localized Twin Shear at Grain Boundaries Leading to Fracture Nucleation. TMS annual meeting, New Orleans, LA, USA (2008)
Bieler, T. R.; Eisenlohr, P.; Kumar, D.; Crimp, M. A.; Roters, F.; Raabe, D.: Predicting Microcrack Nucleation Due to Slip-Twin Interactions at Grain Boundaries in Duplex Near Gamma-TiAl. TMS annual meeting, New Orleans, LA, USA (2008)
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…
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.