Winning, M.; Khorashadizadeh, A.; Raabe, D.; Zaefferer, S.: Recrystallization and grain growth in ultra fine grained materials produced by high pressure torsion. Recrystallization & Grain Growth 4 RX&GG, Sheffield, UK (2010)
Zaefferer, S.: 3D orientation microscopy based on FIB-EBSD tomography: Potentials and limits. Advanced Methods in Electron Backscatter Diffraction, St. Etienne, France (2010)
Davut, K.; Zaefferer, S.: Statistical Reliability of Phase Fraction and Texture Determination Based on EBSD Investigations on the Example of an Al-TRIP steel. Royal Microscopy Society (RMS) EBSD 2010 Meeting, Derby, UK (2010)
Steinmetz, D.; Zaefferer, S.: Improving the physical resolution of electron backscatter diffraction by decreasing accelerating voltage. EBSD 2010 Meeting, Rolls-Royce Leisure Association, Derby, UK (2010)
Steinmetz, D.; Zaefferer, S.: Quantitative determination of twin volume fraction in TWIP steels by high resolution EBSD. Materials Science and Technology (MS&T) 2010, Pittsburgh, PA, USA (2009)
Davut, K.; Zaefferer, S.: Phase fraction and texture quantification of Al-TRIP steel from EBSD data. 3rd Int. Conf. On Texture and Anisotropy of Polycrystals (ITAP-3), Göttingen, Germany (2009)
Elhami, N.-N.; Tjahjanto, D.; Zaefferer, S.: Microstructural and micromechanical assessment of damage nucleation in a low-alloyed TRIP Steel. 3rd International Conference on Texture and Anisotropy of Polycrystals ITAP-3, Göttingen, Germany (2009)
Steinmetz, D.; Zaefferer, S.: Challenges of low-accelerating voltage electron backscatter diffraction. 3rd International Conference on Texture and Anisotropy of Polycrystals (ITAP-3), Göttingen, Germany (2009)
Zaefferer, S.: 3D-orientation microscopy using FIB–EBSD tomography: An overview on techniques, applications and limits. 158th ISIJ Meeting, Kyoto, Japan (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)
Gutierrez-Urrutia, I.; Zaefferer, S.; Raabe, D.: Effect of grain size and heterogeneous strain distribution on deformation twinning in a Fe–22Mn–0.6C TWIP steel. THERMEC 2009, Berlin, Germany (2009)
Calcagnotto, M.; Ponge, D.; Demir, E.; Raabe, D.; Zaefferer, S.: 3D-EBSD Investigation on Orientation Gradients and Geometrically Necessary Dislocations Induced by the Martensitic Phase Transformation in Ultrafine Grained Dual-Phase Steels. Interdisciplinary Symposium on 3D Microscopy, Interlaken, Switzerland (2009)
Khorashadizadeh, A.; Winning, M.; Zaefferer, S.; Raabe, D.: 3D tomographic EBSD characterization of crystal topology in a CuZr alloy processed by equal channel angular pressing. Interdisciplinary Symposium on 3D Microscopy, Interlaken, Switzerland (2009)
Zaefferer, S.: 3D orientation microscopy by EBSD-FIB tomography: What can be done, what can't? AGH - ZEISS Workshop on Focused Ion Beam techniques, Krakow, Poland (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…
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.
“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…
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…
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…