Van Putten, K.; Roters, F.; Kirch, D.; Hirt, G.: Experimental and numerical investigations of the plane strain compression of an oligocrystalline pure copper specimen. Journal of Materials Processing Technology 211, pp. 1305 - 1323 (2011)
Zambaldi, C.; Roters, F.; Raabe, D.: Analysis of the plastic anisotropy and pre-yielding of (gamma/alpha2)-phase titanium aluminide microstructures by crystal plasticity simulation. Intermetallics 19 (6), pp. 820 - 827 (2011)
Demir, E.; Raabe, D.; Roters, F.: The mechanical size effect as a mean-field breakdown phenomenon: Example of microscale single crystal beam bending. Acta Materialia 58, pp. 1876 - 1886 (2010)
Demir, E.; Roters, F.; Raabe, D.: Bending of single crystal microcantilever beams of cube orientation: Finite element model and experiments. Journal of the Mechanics and Physics of Solids 58, pp. 1599 - 1612 (2010)
Liu, B.; Raabe, D.; Roters, F.; Eisenlohr, P.; Lebensohn, R. A.: Comparison of finite element and fast Fourier transform crystal plasticity solvers for texture prediction. Modelling and Simulation in Materials Science and Engineering 18 (8), 085005, pp. 085005-1 - 085005-21 (2010)
Peranio, N.; Li, Y. J.; Roters, F.; Raabe, D.: Microstructure and texture evolution in dual-phase steels: Competition between recovery, recrystallization, and phase transformation. Materials Science and Engineering A 527 (16-17), pp. 4161 - 4168 (2010)
Tjahjanto, D. D.; Eisenlohr, P.; Roters, F.: A novel grain cluster-based homogenization scheme. Modelling and Simulation in Materials Science and Engineering 18 (1), 015006, pp. 015006-1 - 015006-21 (2010)
Kraska, M.; Doig, M.; Tikhomirov, D.; Raabe, D.; Roters, F.: Virtual material testing for stamping simulations based on polycrystal plasticity. Computational Materials Science 46 (2), pp. 383 - 392 (2009)
Bieler, T. R.; Eisenlohr, P.; Roters, F.; Kumar, D.; Mason, D. E.; Crimp, M. A.; Raabe, D.: The role of heterogeneous deformation on damage nucleation at grain boundaries in single phase metals. International Journal of Plasticity 25 (9), pp. 1655 - 1683 (2009)
Eisenlohr, P.; Tjahjanto, D. D.; Hochrainer, T.; Roters, F.; Raabe, D.: Comparison of texture evolution in fcc metals predicted by various grain cluster homogenization schemes. International Journal of Materials Research 100 (4), pp. 500 - 509 (2009)
Ma, D.; Friák, M.; Neugebauer, J.; Raabe, D.; Roters, F.: Multiscale simulation of polycrystal mechanics of textured β-Ti alloys using ab initio and crystal-based finite element methods. Physica Status Solidi B 245 (12), pp. 2642 - 2648 (2008)
Kumar, D.; Bieler, T. R.; Eisenlohr, P.; Mason, D. E.; Crimp, M. A.; Roters, F.; Raabe, D.: On Predicting Nucleation of Microcracks Due to Slip-Twin Interactions at Grain Boundaries in Duplex gamma-TiAl. Journal of Engineering and Materials Technology 130 (02), pp. 021012-1 - 021012-12 (2008)
Tikhovskiy, I.; Raabe, D.; Roters, F.: Simulation of earing of a 17% Cr stainless steel considering texture gradients. Materials Science and Engineering A 488, pp. 482 - 490 (2008)
Weber, F.; Schestakow, I.; Roters, F.; Raabe, D.: Texture Evolution During Bending of a Single Crystal Copper Nanowire Studied by EBSD and Crystal Plasticity Finite Element Simulations. Advanced Engineering Materials 10 (8), pp. 737 - 741 (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.