An, D.; Zaefferer, S.: Formation mechanism of dislocation patterns under low cycle fatigue of a high-manganese austenitic TRIP steel with dominating planar slip mode. International Journal of Plasticity 121, pp. 244 - 260 (2019)
Rogowitz, A.; Zaefferer, S.; Dubosq, R.: Direct observation of dislocation nucleation in pyrite using combined electron channelling contrast imaging and electron backscatter diffraction. Terra Nova 30 (6), pp. 423 - 430 (2018)
Nayyeri, G.; Poole, W. J.; Sinclair, C. W.; Zaefferer, S.: Measurement of the critical resolved shear stress for basal slip in magnesium alloys using instrumented indentation. Scripta Materialia 156, pp. 37 - 41 (2018)
An, D.; Griffiths, T. A.; Konijnenberg, P. J.; Mandal, S.; Wang, Z.; Zaefferer, S.: Correlating the five parameter grain boundary character distribution and the intergranular corrosion behaviour of a stainless steel using 3D orientation microscopy based on mechanical polishing serial sectioning. Acta Materialia 156, pp. 297 - 309 (2018)
Archie, F. M. F.; Zaefferer, S.: On variant selection at the prior austenite grain boundaries in lath martensite and relevant micro-mechanical implications. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 731, pp. 539 - 550 (2018)
Breitbarth, E.; Zaefferer, S.; Archie, F. M. F.; Besel, M.; Raabe, D.; Requena, G.: Evolution of dislocation patterns inside the plastic zone introduced by fatigue in an aged aluminium alloy AA2024-T3. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 718, pp. 345 - 349 (2018)
Stechmann, G.; Zaefferer, S.; Raabe, D.: Molecular statics simulation of CdTe grain boundary structures and energetics using a bond-order potential. Modelling and Simulation in Materials Science and Engineering 26 (4), 045009 (2018)
Nayyeri, G.; Poole, W. J.; Sinclair, C. W.; Zaefferer, S.: The role of indenter radius on spherical indentation of high purity magnesium loaded nearly parallel to the c-axis. Scripta Materialia 137, pp. 119 - 122 (2017)
Wang, Z.; Zaefferer, S.: On the accuracy of grain boundary character determination by pseudo-3D EBSD. Materials Characterization 130, pp. 33 - 38 (2017)
Archie, F. M. F.; Li, X. L.; Zaefferer, S.: Micro-damage initiation in ferrite-martensite DP microstructures: A statistical characterization of crystallographic and chemical parameters. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 701, pp. 302 - 313 (2017)
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…
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.
“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…
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…
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…
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…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.