Arigela, V. G.; Oellers, T.; Ludwig, A.; Kirchlechner, C.; Dehm, G.: Setup of a microscale high temperature loading rig for micro-fracture mechanics with a novel temperature measurement approach. Advanced nano-mechanical techniques for academic and industrial research, Aachen, Germany (2018)
Arigela, V. G.; Oellers, T.; Ludwig, A.; Kirchlechner, C.; Dehm, G.: Temperature dependent mechanical characterization of sputtered Copper-Silver thin film tensile specimens produced by photolithography. Materials Chain International Conference, Bochum, Germany, Bochum, Germany (2018)
Arigela, V. G.; Oellers, T.; Ludwig, A.; Kirchlechner, C.; Dehm, G.: High temperature mechanical characterization of Copper-Silver- and Copper-Zirconium thin film libraries produced by combinatorial materials synthesis approach. GDRi Mecano General School 2018, Cargese, Corsica, France (2018)
Arigela, V. G.; Oellers, T.; Ludwig, A.; Kirchlechner, C.; Dehm, G.: High temperature mechanical characterization of Copper-Silver- and Copper-Zirconium thin film libraries produced by combinatorial materials synthesis approach. Gordon Research Seminar on Thin Film and Small Scale Mechanical Behavior (GRS) 2018, Lewiston, ME, USA (2018)
Li, J.; Dehm, G.; Kirchlechner, C.: Grain Boundaries acting as dislocation sources. Gordon Research Seminar "Thin Film & Small Scale Mechanical Behavior", Lewiston, ME, USA (2018)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Composition dependence of mechanical properties of cubic and hexagonal NbCo2 Laves phases. EMMC 16, European Mechanics of Material Conference, Nantes, France (2018)
Lee, S.; Duarte, M. J.; Liebscher, C.; Oh, S. H.; Dehm, G.: Dislocation Plasticity in Single Crystal FeCrCoMnNi HEA by in-situ TEM Deformation. Schöntal Symposium - Dislocation based plasticity, Schöntal, Germany (2018)
Hieke, S. W.; Dehm, G.; Scheu, C.: Texture evolution and solid state dewetting of passivated Al thin films on Al2O3. International GRK 1896 Satellite Symposium "In Situ Microscopy with Electrons, X-rays and Scanning Probes", Erlangen, Germany (2017)
Duarte, M. J.; Fang, X.; Brinckmann, S.; Dehm, G.: Hydrogen-microstructure interactions in bcc FeCr alloys by in-situ nanoindentation. ECI, Nanomechanical Testing in Materials Research and Development VI, Dubrovnik, Croatia (2017)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Micropillar Compression of Hexagonal and Cubic NbCo2 Laves Phases. Nanomechanical Testing in Materials Research and Development VI, Dubrovnik, Croatia (2017)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Deformation of Micropillars of Cubic and Hexagonal NbCo2 Laves Phases under Uniaxial Compression at Room Temperature. Intermetallics 2017, Educational Center Kloster Banz, Bad Staffelstein, Germany (2017)
Arigela, V. G.; Kirchlechner, C.; Dehm, G.: Setup of a microscale high temperature loading rig for micro-fracture mechanics. GRi Mecano General meeting, Toulouse, France (2017)
Arigela, V. G.; Kirchlechner, C.; Janisch, R.; Hartmaier, A.; Dehm, G.: Setup of a microscale fracture apparatus to study the interface behaviour in materials at high temperatures. Materials Day 2016, Ruhr Universitat Bochum, Bochum, Germany (2016)
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…
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…