von Pezold, J.; Lymperakis, L.; Neugebauer, J.: Towards an ab-initio based understanding of H-embrittlement: An atomistic study of the HELP mechanism. Joint Hydrogenius and ICNER International Workshop on Hydrogen-Materials Interactions, Kyushu, Japan (2012)
Pfanner, G.; Freysoldt, C.; Neugebauer, J.: The dangling-bond defect in amorphous silicon: Insights from ab initio calculations of EPR parameters. 1st Austrian-German workshop on computational materials design, Kramsach, Austria (2012)
Aydin, U.; Hickel, T.; Neugebauer, J.: Solution enthalpy of hydrogen in 3d transition metals and neighboring elements. 1st Austrian/German Workshop on Computational Materials Design, Kramsach, Austria (2012)
Bleskov, I.; Hickel, T.; Neugebauer, J.: Ab initio investigation of the stacking fault in Fe-based alloys. 1st Austrian-German workshop on Computational Materials Design, Kramsach, Austria (2012)
Izanlou, A.; Todorova, M.; Friák, M.; Neugebauer, J.: Ab initio study of stability of Fe3Al surfaces in contact with an oxygen atmosphere. 1st Austrian/German Workshop on Computational Materials Design, Kramsach, Austria (2012)
Lange, B.; Freysoldt, C.; Neugebauer, J.: Point-defect energetics from LDA, PBE, and HSE: Different functionals, different energetics? 1.st Austrian/German Workshop on Computational Materials Design, Kramsach, Tyrol, Austria (2012)
Haghighat, S. M. H.; von Pezold, J.; Neugebauer, J.; Raabe, D.: Effect of local stress state on the glide of ½a₀<111> screw dislocation in bcc-Fe. 1st Austrian-German Workshop on Computational Materials Design, Kramsach, Austria (2012)
Körmann, F.; Dick, A.; Hickel, T.; Neugebauer, J.: The influence of magnetic excitations on the phase stability of metals and steels. ADIS2012: Thermodynamics and Kinetics, Ringberg, Germany (2012)
Nazarov, R.; Hickel, T.; Neugebauer, J.: Thermodynamics and kinetics of H interaction with vacancies in fcc metals. ADIS 2012 Workshop, Ringberg, Germany (2012)
Nematollahi, A.; von Pezold, J.; Neugebauer, J.; Raabe, D.: Thermodynamics of the strain-induced dissolution of cementite in pearlitic structure steel: An ab-initio study. 1st Austrian-German workshop on Computational Materials Design, Kramsach, Austria (2012)
Race, C. P.; von Pezold, J.; Neugebauer, J.: Grain boundary migration via the nucleation and growth of islands in molecular dynamics. 1st Austrian-German Workshop on Computational Materials Design, Kramsach, Austria (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…
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.
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…