Brink, T.; Kim, D.; Dehm, G.: Atomistic computer simulations of the influence of grain boundary phases on segregation. DPG-Frühjahrstagung 2025, Regensburg, Germany (2025)
Lee, J. S.; Riedel, J. L.; Kauffmann, A.; Guth, S.; Heilmaier, M.; Kanjilal, A.; Dehm, G.; Best, J. P.; Stein, F.: The Effect of Vacancy Concentration on the Micromechanical Behaviour of B2 FeAl Diffusion Couples Covering a Wide Range of Compositions. Intermetallics 2025, Bad Staffelstein, Germany (2025)
Dehm, G.: Effects of Grain Boundary Structure and Chemistry on Plasticity in Metals. Nanomechanical Testing in Materials Research and Development IX, Messina (Sicily), Italy (2024)
Dehm, G.: Towards Understanding Dislocation Strengthening Mechanisms of Cr(Mn)FeCoNi high entropy alloys by advanced (S)TEM. ELMINA 2024, Belgrade, Serbia (2024)
Zhou, X.; Hickel, T.; Gault, B.; Ophus, C.; Liebscher, C.; Dehm, G.; Raabe, D.: Exploring the Relationship Between Grain Boundary Structure and Chemical Composition at the Atomic Level. International Conference on Intergranular and Interphase Boundaries in Materials (IIB 2024), Beijing, China (2024)
Dehm, G.: Atomic resolved imaging of grain boundary phase transitions in pure and alloyed metallic thin films. 17th International Conference on Intergranular and Interphase Boundaries in Materials (IIB 2024), Beijing, China (2024)
Lee, J. S.; Dehm, G.; Best, J. P.; Stein, F.: A Micromechanical Study on the Correlation of Composition and Properties of B2 FeAl across the Interface of an Fe–Al Diffusion Couple. ECR Day, Ruhr Universität Bochum, Bochum, Germany (2024)
Dehm, G.; Devulapalli, V.; Schulz, F.; Soares Barreto, E.; Ellendt, N.; Jägle, E. A.: Strengthening of CoCrFe(Mn)Ni high entropy alloys by dislocation pinning: From Lattice friction & SRO to particle strengthening. Possibilities and Limitations of Quantitative Materials Modeling and Characterization 2024, Bernkastel-kues, Germany (2024)
Vacirca, D.; Bignoli, F.; Li Bassi, A.; Best, J. P.; Dehm, G.; Faurie, D.; Djemia, P.; Ghidelli, M.: Boosting mechanical properties of thin film high entropy alloys through nanoengineering design strategies. 16th International Conference on Local Mechanical Properties, Prague, Czech Republic (2024)
Bhat, M. K.; Brink, T.; Ding, H.; Jung, C.; Best, J. P.; Dehm, G.: Influence of the Structure and Chemistry of Σ5 Grain Boundaries on Microscale Strengthening in Cu Bicrystals. TMS Annual Meeting and Exhibition 2024, Orlando, FL, USA (2024)
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…
“Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
With the support of DFG, in this project the interaction of H with mechanical, chemical and electrochemical properties in ferritic Fe-based alloys is investigated by the means of in-situ nanoindentation, which can characterize the mechanical behavior of independent features within a material upon the simultaneous charge of H.
The goal of this project is the investigation of interplay between the atomic-scale chemistry and the strain rate in affecting the deformation response of Zr-based BMGs. Of special interest are the shear transformation zone nucleation in the elastic regime and the shear band propagation in the plastic regime of BMGs.
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Hydrogen embrittlement (HE) of steel is a great challenge in engineering applications. However, the HE mechanisms are not fully understood. Conventional studies of HE are mostly based on post mortem observations of the microstructure evolution and those results can be misleading due to intermediate H diffusion. Therefore, experiments with a…