Nazarov, R.; Hickel, T.; Neugebauer, J.: Influence of alloying elements on solubility and diffusivity of H in different steel phases. HYDRAMYCROS Workshop, Ghent, Belgium (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)
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)
Hickel, T.; Glensk, A.; Grabowski, B.; Neugebauer, J.: Ab initio up to the melting point: Integrated approach to derive accurate thermodynamic data for Al alloys. European Aluminium Association, European Aluminium Technology Platform, Working Group 5: Predictive Modelling, 5th workshop: ab initio modelling, Aachen, Germany (2011)
Hickel, T.; Al-Zubi, A.; Neugebauer, J.: Ab initio based prediction of phase diagrams: Application to magnetic shape-memory alloys. 9. Materialwissenschaftlicher Tag der Ruhr-Universtät Bochum, Bochum, Germany (2011)
Gutierrez-Urrutia, I.; Dick, A.; Hickel, T.; Neugebauer, J.; Raabe, D.: Understanding TWIP steel microstructures by using advanced electron microscopy and ab initio predictions. International Conference on Processing & Manufacturing of Advanced Materials THERMEC 2011, Québec City, QC, Canada (2011)
Hickel, T.; Al-Zubi, A.; Neugebauer, J.: Chemical Trends for Phase Transitions in Magnetic Shape Memory Alloys Derived from First Principles. International Conference on Ferromagnetic Shape-Memory Alloys, ICFSMA’11, Dresden, Germany (2011)
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…