Saksena, A.; Sun, B.; Dong, X.; Khanchandani, H.; Ponge, D.; Gault, B.: Optimizing site-specific specimen preparation for atom probe tomography by using hydrogen for visualizing radiation-induced damage. International Journal of Hydrogen Energy 50 (Part A), pp. 165 - 174 (2024)
Wang, X.; Liu, C.; Sun, B.; Ponge, D.; Jiang, C.; Raabe, D.: The dual role of martensitic transformation in fatigue crack growth. Proceedings of the National Academy of Sciences of the United States of America 119 (9), e2110139119 (2022)
Wan, D.; Ma, Y.; Sun, B.; Razavi, S. M. J.; Wang, D.; Lu, X.; Song, W.: Evaluation of hydrogen effect on the fatigue crack growth behavior of medium-Mn steels via in-situ hydrogen plasma charging in an environmental scanning electron microscope. Journal of Materials Science & Technology 85, pp. 30 - 43 (2021)
Varanasi, R. S.; Zaefferer, S.; Sun, B.; Ponge, D.: Localized deformation inside the Lüders front of a medium manganese steel. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 824, 141816 (2021)
Li, X.; Sun, B.; Guan, B.; Jia, Y.-F.; Gong, C.-Y.; Zhang, X.; Tu, S.-T.: Elucidating the effect of gradient structure on strengthening mechanisms and fatigue behavior of pure titanium. International Journal of Fatigue 146, 106142 (2021)
Yang, Y.; Mu, W.; Sun, B.; Jiang, H.; Mi, Z.: New insights to understand the strain-state-dependent austenite stability in a medium Mn steel: An experimental and theoretical investigation. Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing 809, 140993 (2021)
Zhang, J.; Huang, M.; Sun, B.; Zhang, B.; Ding, R.; Luo, C.; Zeng, W.; Zhang, C.; Yang, Z.; van der Zwaag, S.et al.; Chen, H.: Critical role of Lüders banding in hydrogen embrittlement susceptibility of medium Mn steels. Scripta Materialia 190, pp. 32 - 37 (2021)
An, D.; Zhao, H.; Sun, B.; Zaefferer, S.: Direct observations of collinear dislocation interaction in a Fe–17.4 Mn–1.50 Al–0.29 C (wt.%) austenitic steel under cyclic loading by in-situ electron channelling contrast imaging and cross-correlation electron backscatter diffraction. Scripta Materialia 186, pp. 341 - 345 (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…
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.
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…
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.
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 plan to investigate the rate-dependent tensile properties of 2D materials such as HCP 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.
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.