Udyansky, A.; von Pezold, J.; Friák, M.; Neugebauer, J.: Influence of long-range C-C elastic interactions on the structural stability of dilute Fe-C solid solutions. Invited Talk at ICAMS, Bochum, Germany (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of the Hydrogen enhanced local plasticity (HELP) mechanism. Asia Steel Conference 2009, Busan, South Korea (2009)
Udyansky, A.; von Pezold, J.; Friák, M.; Neugebauer, J.: Multi-scale modeling of the phase stability of interstitial Fe-C solid solutions. Invited talk at MPI for Metal Research, Stuttgart, Germany (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of the Hydrogen-enhanced local plasticity mechanism (HELP). Fruehjahrstagung der Deutschen Physikalischen Gesellschaft 2009, Dresden, Germany (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of hydrogen embrittlement in metals: Revisitting the Hydrogen-enhanced local plasticity mechanism. APS March Meeting, Pittsburgh, PA, USA (2009)
von Pezold, J.: Ab initio based approaches to failure mechanisms in steels: Application to hydrogen embrittlement. Materialphysikalisches Seminar, Georg August Universitaet Goettingen (2008)
Udyansky, A.; Bugaev, V.; von Pezold, J.; Friák, M.; Neugebauer, J.: Modeling of the strain-induced interaction between carbon atoms in Fe-C solid solution using embedded atom method potential. Contemporary Problems of Metal Physics, Kiev, Ukraine (2008)
von Pezold, J.; Neugebauer, J.: Hydrogen-enhanced local plasticity - An atomistic study. Materials Science and Engineering 2008, Nuernberg, Germany (2008)
Udyansky, A.; von Pezold, J.; Friák, M.; Neugebauer, J.: Atomistic modeling of the strain-induced interaction between carbon atoms in Fe-C solid solution. Computational Materials Science Workshop, Ebernburg Castle, Germany (2008)
Udyansky, A.; von Pezold, J.; Friák, M.; Neugebauer, J.: Atomistic modeling of the strain-induced interaction between carbon atoms in Fe-C solid solution. XVII International Materials Research Congress 2008, Cancun, Mexico (2008)
von Pezold, J.; Neugebauer, J.: Hydrogen enhanced local plasticity - An atomistic study. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Nematollahi, A.; von Pezold, J.; Neugebauer, J.; Raabe, D.: Thermodynamic and kinetic effects of elastic strain on the decomposition of cementite in wire-draw pearlitic steel. International scientific seminar: Ab-initio description of iron and steel thermodynamics and kinetics, Ringberg Castle, Tegernsee, Germany (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…
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 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.
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.
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.