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)
Davut, K.; Zaefferer, S.: Effect of step size and scanned area on phase fraction and texture quantification from EBSD data. DGM-DVM, EBSD-Workshop 2009, Mikrostrukturuntersuchungen im REM, Chemnitz, Germany (2009)
Zaefferer, S.: 3D-orientation microscopy using FIB–EBSD tomography: An overview on techniques, applications and limits. EMAS 2009, Gdańsk, Poland (2009)
Gutierrez-Urrutia, I.; Zaefferer, S.; Raabe, D.: Quantitative electron channelling contrast imaging: A promising tool for the study of dislocation structures in SEM. Electron Backscatter Diffraction Meeting, Swansea, UK (2009)
Steinmetz, D.; Zaefferer, S.: Towards ultrahigh resolution EBSD by use of low accelerating voltage. EBSD 2009 Meeting, University of Swansea, Wales, UK (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)
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 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.
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.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
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.
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.
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...