Gutiérrez-Urrutia, I.; Raabe, D.: Multistage strain hardening through dislocation substructure and twinning in a high strength and ductile weight-reduced Fe–Mn–Al–C steel. Acta Materialia 60 (16), pp. 5791 - 5802 (2012)
Szczepaniak, A.; Fan, J.; Kostka, A.; Raabe, D.: On the Correlation Between Thermal Cycle and Formation of Intermetallic Phases at the Interface of Laser-Welded Aluminum-Steel Overlap Joints. Advanced Engineering Materials 14 (7), pp. 464 - 472 (2012)
Cédat, D.; Fandeur, O.; Rey, C.; Raabe, D.: Polycrystal model of the mechanical behavior of a Mo–TiC30 vol.% metal–ceramic composite using a three-dimensional microstructure map obtained by dual beam focused ion beam scanning electron microscopy. Acta Materialia 60 (4), pp. 1623 - 1632 (2012)
Tytko, D.; Choi, P.-P.; Klöwer, J.; Inden, G.; Raabe, D.: Microstructural evolution of a Ni-based superalloy (617B) at 700 °C studied by electron microscopy and atom probe tomography. Acta Materialia 60 (4), pp. 1731 - 1740 (2012)
Calcagnotto, M.; Ponge, D.; Raabe, D.: On the Effect of Manganese on Grain Size Stability and Hardenability in Ultrafine-Grained Ferrite/Martensite Dual-Phase Steels. Metallurgical and Materials Transactions A 43A, pp. 37 - 46 (2012)
Fabritius, H.; Karsten, E. S.; Balasundaram, K.; Hild, S.; Huemer, K.; Raabe, D.: Correlation of structure, composition and local mechanical properties in the dorsal carapace of the edible crab Cancer pagurus. 11, pp. 766 - 776 (2012)
Gutierrez-Urrutia, I.; Raabe, D.: Study of deformation twinning and planar slip in a TWIP steel by Electron Channeling Contrast Imaging in a SEM. Materials Science Forum 702 - 703, pp. 523 - 529 (2012)
Gutierrez-Urrutia, I.; Raabe, D.: Dislocation density measurement by electron channeling contrast imaging in a scanning electron microscope. Scripta Materialia 66, pp. 343 - 346 (2012)
Gutiérrez-Urrutia, I.; Raabe, D.: New insights on quantitative microstructure characterization by electron channeling contrast imaging under controlled diffraction conditions in SEM. Microscopy and Microanalysis 18 (2), pp. 686 - 687 (2012)
He, D.; Zhu, J. C.; Zaefferer, S.; Raabe, D.; Liu, Y.; Lai, Z. L.; Yang, X. W.: Influences of deformation strain, strain rate and cooling rate on the Burgers orientation relationship and variants morphology during beta -> alpha phase transformation in a near alpha titanium alloy. Materials Science and Engineering A 549, pp. 20 - 29 (2012)
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 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.
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…
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.
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
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…