Kobayashi, S.; Zambaldi, C.; Raabe, D.: Orientation dependence of local lattice rotations at precipitates: Example of κ-Fe3AlC carbides in a Fe3Al-based alloy. Acta Materialia 58 (20), pp. 6672 - 6684 (2010)
Kobayashi, S.; Zaefferer, S.; Raabe, D.: Relative Importance of Nucleation vs. Growth for Recrystallisation in Particle-containing Fe3Al Alloys. Materials Science Forum 550, not specified, pp. 345 - 350 (2007)
Kobayashi, S.; Zaefferer, S.: Creation of Fine-grained and Deformed Structure with Fine Carbide Particles in a Fe3Al–Cr–Mo–C Alloy. Intermetallics 14 (10-11), pp. 1252 - 1256 (2006)
Kobayashi, S.; Demura, M.; Kishida, K.; Hirano, T.: Tensile and Bending Deformation of Ni3Al Heavily Cold-rolled Foil. Intermetallics 13, pp. 608 - 614 (2005)
Takeyama, M.; Kobayashi, S.: Physical Metallurgy for Wrought Gamma Titanium Aluminides: Microstructure Control through Phase Transformations. Intermetallics 13, pp. 993 - 999 (2005)
Tetsui, T.; Shindo, K.; Kaji, S.; Kobayashi, S.; Takeyama, M.: Fabrication of TiAl components by means of hot forging and machining. Intermetallics 13, pp. 971 - 978 (2005)
Kobayashi, S.; Zaefferer, S.; Schneider, A.; Raabe, D.; Frommeyer, G.: Slip system determination by rolling texture measurements around the strength peak temperature in a Fe3Al-based alloy. Materials Science and Engineering A 387–389, pp. 950 - 954 (2004)
Kobayashi, S.; Zaefferer, S.; Raabe, D.: Relative importance of nucleation vs. growth for recrystallisation in particle-containing Fe3Al alloys. In: Fundamentals of Deformation and Annealing Symposium. Fundamentals of Deformation and Annealing Symposium. (2006)
Kobayashi, S.; Zaefferer, S.; Schneider, A.; Raabe, D.; Frommeyer, G.: Effect of the Degree of Order and the Deformation Microstructure on the Kinetics of Recrystallization in a Fe3Al Ordered Alloy. Materials Science Forum, pp. 153 - 158 (2004)
Kobayashi, S.; Zaefferer, S.: Determination of Phase Equilibria in the Fe3Al–Cr–Mo–C Semi-quaternary System Using a New Diffusion-multiple Technique. 12th International IUPAC Conference on High Temperature Materials Chemistry, Vienna, Austria (2006)
Kobayashi, S.; Zaefferer, S.; Raabe, D.: Relative Importance of Nucleation vs. Growth for Recrystallisation of Particle-containing Fe3Al Alloys. Fundamentals of Deformation and Annealing Symposium, Manchester, UK (2006)
Kobayashi, S.; Zaefferer, S.: Microstructure Control Using Phase Transformations in Ternary Gamma TiAl Alloys. Seminar talk, Universität Kassel, Kassel Germany (2006)
Kobayashi, S.; Zaefferer, S.: Optimisation of Precipitation for the Development of Heat Resistant Fe3Al-based Alloys. Seminar talk, National Institute for Materials Science (NIMS), Tsukuba, Japan (2006)
Kobayashi, S.; Zaefferer, S.: Optimization of Precipitation for the Development of Heat Resistant Iron Aluminides. Seminar talk, Oak Ridge National Laboratory, Tennessee USA (2005)
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 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.
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
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.