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)
Nikolov, S.; Sachs, C.; Fabritius, H.; Raabe, D.; Petrov, M.; Friák, M.; Neugebauer, J.: Modeling of the mechanical properties of lobster cuticle from ab initio to macroscale: How nature designs multifunctional composites with optimal properties. International Plasticity Conference 2009, Virgin Islands, USA (2009)
Ohsaki, S.; Raabe, D.; Hono, K.: Mechanical alloying and amorphization in Cu–Nb–Ag in situ composite wires studied by TEM and atom probe tomography. MRS 2009 Fall Meeting, Boston, MA, USA (2009)
Raabe, D.; Demir, E.; Zaefferer, S.: Experimental investigation of geometrically necessary dislocations beneath small indents of different depths using EBSD tomography. MRS 2009 Fall Meeting, Boston, MA, USA (2009)
Hild, S.; Ziegler, A.; Neues, F.; Epple, M.; Fabritius, H.; Raabe, D.: The Crustacean Cuticle: A Model to Study the Influence of Chemical Composition and Microstructure on the Mechanical Properties of a Biological Composite Material. MRS Fall Conference 2008, Boston, MA, USA (2008)
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)
Counts, W. A.; Friák, M.; Battaile, C.; Raabe, D.; Neugebauer, J.: Multiscale Prediction of Polycrystal Elastic Properties of Ultralight Weight Mg-Li Alloys using Ab Initio and FEM Approaches. MRS Fall Conference 2008, Boston, MA, USA (2008)
Demir, E.; Raabe, D.; Zaefferer, S.: Quantification of Geometrically Necessary Dislocations Beneath Small Indents of Different Depths Using EBSD Tomography. MRS Fall Conference 2008, Boston, MA, USA (2008)
Knezevic, M.; Ma, D.; Raabe, D.; Kalidindi, S. R.; Friák, M.; Neugebauer, J.: Application of Spectral Methods for Anisotropy Design of Ti-Nb Polycrystals for Biomedical Applications based on ab Initio Elastic Single Crystal Constants and Fast Fourier Homogenization. MRS Fall Conference 2008, Boston, MA, USA (2008)
Petrov, M.; Friák, M.; Lymperakis, L.; Neugebauer, J.; Raabe, D.: Ground-state structure and elastic anisotropy of crystalline alpha-chitin: An ab-initio based conformational analysis. Materials Research Society meeting (MRS), Boston, MA, USA (2008)
Calcagnotto, M.; Ponge, D.; Raabe, D.: Mechanical properties of ultrafine and fine grained dual phase steels. MS&T 2008 (Materials Science and Technology), Pittsburgh, PA, USA (2008)
Ma, A.; Friák, M.; Neugebauer, J.; Raabe, D.: Ab initio based design of alloys. MS&T'08, Symposium: Discovery and Optimization of Materials Through Computational Design, David Lawrence Convention Center, Pittsburgh, PA, 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…
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.
“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…
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…
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.