Dehm, G.; Zhang, Z.; Völker, B.: Structure and strength of metal-ceramic interfaces: New insights by Cs corrected TEM and advances in miniaturized mechanical testing. MS&T 2015 (Materials Science and Technology) meeting, Symposium entitled "Structures and Properties of Grain Boundaries: Towards an atomic-scale understanding of ceramics", Columbus, OH, USA (2015)
Dehm, G.; Harzer, T. P.; Völker, B.; Imrich, P. J.; Zhang, Z.: Towards New Insights on Interface Controlled Materials by Advanced Electron Microscopy. Frontiers of Electron Microscopy in Materials Science Meeting (FEMMS 2015), Lake Tahoe, CA, USA (2015)
Dehm, G.; Jaya, B. N.; Raghavan, R.; Kirchlechner, C.: Probing deformation and fracture of materials with high spatial resolution. Euromat 2015 - Symposium on In-situ Micro- and Nano-mechanical, Characterization and Size Effects
, Warsaw, Poland (2015)
Dehm, G.: In situ nano- and micromechanics of materials. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices – IAMNano 2015, Hamburg, Germany (2015)
Duarte, M. J.; Brinckmann, S.; Renner, F. U.; Dehm, G.: Nanomechanical testing under environmental conditins of Fe-based metallic glasses. 22st International Symposium on Metastable Amorphous and Nanostructured Materials, ISMANAM 2015, Paris, France (2015)
Hieke, S. W.; Dehm, G.; Scheu, C.: Temperature induced faceted hole formation in epitaxial Al thin films on sapphire. Understanding Grain Boundary Migration: Theory Meets Experiment, Günzburg/Donau, Germany (2015)
Malyar, N.; Kirchlechner, C.; Dehm, G.: Dislocation grain boundary interaction in bi-crystalline micro pillars studied by in situ SEM and in situ µLaue diffraction. ICM 12 - 12th International Conference on the Mechanical Behavior of Materials, Karlsruhe, Germany (2015)
Dehm, G.: In situ nanocompression testing in the TEM: Challenges and benefits. Symposium Advanced Electron Microscopy for Materials Research, Erlangen, Germany (2015)
Kirchlechner, C.; Malyar, N.; Imrich, P. J.; Dehm, G.: Plastische Verformung an Korngrenzen: Neue Einblicke durch miniaturisierte Zug- und Druckversuche. 11. Tagung Gefüge und Bruch (2015), Leoben, Austria (2015)
Fink, C.; Brinckmann, S.; Shin, S.; Dehm, G.: Nanotribology and Microstructure Evolution in Pearlite. Frühjahrstagung der Sektion Kondensierte Materie der Deutschen Physikalischen Gesellschaft
, Berlin, Germany (2015)
Malyar, N.; Dehm, G.; Kirchlechner, C.: Insights into dislocation slip transfer by µLaue diffraction. Arbeitskreis-Treffen der Deutschen Gesellschaft für Materialkunde (DGM) e.V. „Rasterkraftmikroskopie und nanomechanische Methoden“, Darmstadt, Germany (2015)
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…
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.
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,...
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
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…