Malyar, N.; Dehm, G.; Kirchlechner, C.: Strain rate dependence of the slip transfer through a penetrable high angle grain boundary in copper. Scripta Materialia 138, pp. 88 - 91 (2017)
Jörg, T.; Cordill, M. J.; Franz, R.; Kirchlechner, C.; Többens, D. M.; Winkler, J.; Mitterer, C.: Thickness dependence of the electro-mechanical response of sputter deposited Mo thin films on polyimide: Insights from in situ synchrotron diffraction tensile tests. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 697, pp. 17 - 23 (2017)
Malyar, N.; Micha, J.-S.; Dehm, G.; Kirchlechner, C.: Dislocation-twin boundary interaction in small scale Cu bi-crystals loaded in different crystallographic directions. Acta Materialia 129, pp. 91 - 97 (2017)
Peter, N. J.; Liebscher, C.; Kirchlechner, C.; Dehm, G.: Beam-induced atomic migration at Ag-containing nanofacets at an asymmetric Cu grain boundary. Journal of Materials Research 32 (5), pp. 968 - 982 (2017)
Brinckmann, S.; Kirchlechner, C.; Dehm, G.: Stress intensity factor dependence on anisotropy and geometry during micro-fracture experiments. Scripta Materialia 127, pp. 76 - 78 (2017)
Davydok, A.; Jaya, B. N.; Robach, O.; Ulrich, O.; Micha, J.-S.; Kirchlechner, C.: Analysis of the full stress tensor in a micropillar: Ability of and difficulties arising during synchrotron based μLaue diffraction. Materials and Design 108, pp. 68 - 75 (2016)
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.
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
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.
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,...
Understanding hydrogen-assisted embrittlement of advanced high-strength steels is decisive for their application in automotive industry. Ab initio simulations have been employed in studying the hydrogen trapping of Cr/Mn containing iron carbides and the implication for hydrogen embrittlement.
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…