Rielli, V. V.; Theska, .; Yao, Y.; Best, J. P.; Primig, S.: On the composition and nanomechanical response of δ-Phase and γ′′-free zone in Alloy 718. EuroSuperalloys 2022, Bamberg, Germany (2022)
Best, J. P.: The role of nanoscale structural ordering on the damage tolerance of laser-processed bulk metallic glasses. Materials Science Engineering MSE 2022, Darmstadt, Germany (2022)
Paul, M. J.; Liu, Q.; Best, J. P.; Li, X.; Kruzic, J. J.; Ramamurty, U.; Gludovatz, B.: Resistance curve behavior of AlSi10Mg fabricated by laser powder bed fusion. Combined Australian Materials Societies – CAMS2022, Melbourne, Australia (2022)
Best, J. P.: Chemical segregation to grain boundaries: Probing the micromechanical response with site-specific in situ SEM measurements. 1st Materials Science Colloquium, 66. Metallkunde-Kolloquium of the Montanuniversität Leoben, Lech am Arlberg, Austria (2022)
Best, J. P.: Recent progress in micromechanical testing of grain boundaries. Seminar at Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Paris Nord University, Paris, France (2022)
Hosseinabadi, R.; Best, J. P.; Kirchlechner, C.; Dehm, G.: Impact of an incoherent twin boundary on the mechanical response of Cu bi-crystalline micropillars. 11th European Solid Mechanics Conference - ESMC 2022, Galway, Ireland (2022)
Brognara, A.; Best, J. P.; Djemia, P.; Faurie, D.; Dehm, G.; Ghidelli, M.: Toward engineered thin film metallic glasses with large mechanical properties: effect of composition and nanostructure. Seminar at Laboratoire des Sciences des Procédés et des Matériaux (LSPM), Paris Nord University, Paris, France (2021)
Best, J. P.: Environmental testing with a focus on high-temperature micromechanics. Summerschool on Experimental Nano- and Micromechanics, Karlsruhe, Germany (2021)
Best, J. P.: Connecting structure to the micro-mechanics and macro-scale fracture toughness of a laser-processed BMG using micro-focussed high-energy X-rays at PETRA III. PETRA IV Workshop – Earth, Environment, and Materials for Nanoscience and Information Technology, online, Hamburg, Germany (accepted)
Best, J. P.: Linking structure to fracture through small-scale mechanical analyses of a laser-processed bulk metallic glass. Materials Science Engineering MSE-2020 (Online), Darmstadt, Germany (2020)
Best, J. P.: Nano-/Micromechanics of Materials: A focus on laser-processed BMGs. Deutsches Zentrum für Luft- und Raumfahrt (DLR) Seminar Series, online, Köln, Germany (2020)
Best, J. P.: Small-scale mechanics at the Max-Planck-Institute in Düsseldorf: An overview. Oxford Materials Group Seminar Series, online, Oxford, UK (2020)
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.
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…
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.
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
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,...