Friák, M.; Deges, J.; Krein, R.; Stein, F.; Palm, M.; Frommeyer, G.; Neugebauer, J.: Combining Experimental and Computational Methods in the Development of Fe3Al-based Materials. 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys (FEAL 2009), Prague, Czech Republic (2009)
Nazarov, R.; Hickel, T.; Neugebauer, J.: Wasserstoff in X-IP Stahl (ab initio): Einfluss von Defekten auf die Energetik und Dynamik von Wasserstoff in Manganstählen. X-IP Workshop, Duisburg, Germany (2009)
Neugebauer, J.: Material- und Werkstoffdesign am Computer: Möglichkeiten, Grenzen und Perspektiven. Kolloquium at Akademie der Wissenschaften, Düsseldorf, Germany (2009)
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)
Friak, M.; Counts, W. A.; Raabe, D.; Neugebauer, J.: Using Ab Initio Calculations in Designing BCC Mg–Li Alloys for Ultra Light-Weight Applications. THERMEC'2009: International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS, Berlin, Germany (2009)
Hickel, T.; Körmann, F.; Dick, A.; Neugebauer, J.: First principles simulation of thermodynamic properties of iron and iron-based alloys. Thermec'2009. International conference on processing & manufacturing of advanced materials, Berlin, Germany (2009)
Freysoldt, C.; Pfanner, G.; Neugebauer, J.: What can EPR hyperfine parameters tell about the Si dangling bond? - A theoretical study. International conference on amorphous and nanoporous semiconductors (ICANS) 23, Utrecht, Netherlands (2009)
Friak, M.; Counts, W. A.; Raabe, D.; Neugebauer, J.: Theory guided design of bcc Mg-Li alloys for ultra-light weight applications. ICSMA 15: International Conference on the Strength of Materials, Dresden, Germany (2009)
Ma, D.; Friák, M.; Raabe, D.; Neugebauer, J.: Multi-physical alloy approaches to solid solution strengthening of Al. 15th International Conference of Strength of Materials, Dresden, Germany (2009)
Hickel, T.; Grabowski, B.; Körmann, F.; Dick, A.; Neugebauer, J.: The accuracy of first principles methods inpredicting thermodynamic properties of metals. XVIII International Material Research Conference, Cancun, Mexico (2009)
Counts, W. A.; Friák, M.; Raabe, D.; Neugebauer, J.: Fundamental materials-design limits in ultra light-weight Mg-Li alloys determined from ab initio calculations. Seminar in the Department of Low Dimensional Structures and Metastable Phases at the Max Planck Institute for Metals Research, Stuttgart, Germany (2009)
Counts, W. A.; Friák, M.; Raabe, D.; Neugebauer, J.: Ab initio determined materials-design limits in ultra light-weight Mg-Li alloys. Seminar in the Department of Strukture at the Institute of Physics of Materials of the Academy of Sciences of the Czech Republic and Institute of Chemistry of the Faculty of Sciences of Masaryk University, Brno, Czech Republic (2009)
Friák, M.; Sander, B.; Ma, D.; Counts, W. A.; Raabe, D.; Neugebauer, J.: Ab-initio based multi-scale approaches to the elasticity of polycrystals. Seminar at the Department of Physical Metallurgy and Materials Testing at Montan Universität Leoben, Leoben, Austria (2009)
Friák, M.; Sob, M.; Kim, O.; Ismer, L.; Neugebauer, J.: Ab initio calculation of phase boundaries in iron along the bcc-fcc transformation path and magnetism of iron overlayers. Seminar at the Department of Materials Physics at Montan Universität Leoben, Leoben, Austria (2009)
Neugebauer, J.: Materials Design based on Ab Initio Thermodynamics: Status, Perspectives, and Trends. Colloquium Talk at Institut für Materialprüfung, Werkstoffkunde und Festigkeitslehre, Universität Stuttgart, Stuttgart, Germany (2009)
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…
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.
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,...
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…