Lee, J. S.; Riedel, J. L.; Schweizer, P.; Kauffmann, A.; Heilmaier, M.; Dehm, G.; Best, J. P.; Kanjilal, A.; Stein, F.: Influence of point defects on the hardness and reduced modulus of B2-ordered FeAl. Journal of Alloys and Compounds 1065, 188036 (2026)
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. In: Proceedings Intermetallics 2025, pp. 89 - 91. Intermetallics 2025, Educational Center Kloster Banz, Bad Staffelstein, Germany, September 29, 2025 - October 02, 2025. Conventus Congressmanagement & Marketing GmbH, Jena, Germany (2025) (2025)
Riedel, J. L.; Kauffmann, A.; Guth, S.; Münch, M.; Sen, S.; Lee, J. S.; Kanjilal, A.; Best, J. P.; Stein, F.; Heilmaier, M.: Re-Assessing the Mechanical Properties of Iron Aluminides: Deformation Behavior and Brittle-to-Ductile Transition. In: Proceedings Intermetallics 2025, pp. 86 - 88. Intermetallics 2025, Educational Center Kloster Banz, Bad Staffelstein, Germany, September 29, 2025 - October 02, 2025. Conventus Congressmanagement & Marketing GmbH, Jena, Germany (2025) (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)
Riedel, J. L.; Kauffmann, A.; Guth, S.; Münch, M.; Sen, S.; Lee, J. S.; Kanjilal, A.; Best, J. P.; Stein, F.; Heilmaier, M.: Re-Assessing the Mechanical Properties of Iron Aluminides: Deformation Behavior and Brittle-to-Ductile Transition. Intermetallics 2025, Educational Center Kloster Banz, Bad Staffelstein, Germany (2025)
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)
Lee, J. S.; Dehm, G.; Best, J. P.; Stein, F.: Mechanical properties of B2 FeAl as a function of composition using targeted nanoindentation on diffusion couples. ECI Conference on Nanomechanical Testing in Materials Research and Development, Giardini Naxos, Messina (Sicily), Italy (2024)
Riedel, J. L.; Kauffmann, A.; Nizamoglu, S.; Guth, S.; Best, J. P.; Lee, J. S.; Stein, F.; Heilmaier, M.: Application of a novel testing scheme for single-specimen brittle-to-ductile-transition temperature determination to Iron-Aluminides. MSE 2024, Darmstadt, Germany (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…
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,...