Auinger, M.; Vogel, D.; Vogel, A.; Spiegel, M.; Rohwerder, M.: A novel laboratory set-up for investigating surface and interface reactions during short term annealing cycles at high temperatures. Review of Scientific Instruments 84, 085108 (2013)
Swaminathan, S.; Rohwerder, M.; Rohwerder, M.; Spiegel, M.: Temperature and dew point dependent segregation of phosphorus and sulfur in Fe–Mn–P–S model alloy. Surface and Coatings Technology 205 (16), pp. 4089 - 4093 (2011)
Asteman, H.; Spiegel, M.: A comparison of the oxidation behaviours of Al2O3 formers and Cr2O3 formers at 700 °C - Oxide solid solutions acting as a template for nucleation. Corrosion Science 50 (6), pp. 1734 - 1743 (2008)
Swaminathan, S.; Spiegel, M.: Effect of alloy composition on the selective oxidation of ternary Fe–Si–Cr, Fe–Mn–Cr model alloys. Surface and Interface Analysis 40 (3-4), pp. 268 - 272 (2008)
Mardare, C. C.; Spiegel, M.; Savan, A.; Ludwig, A.: Investigation of thin coatings from Mn–Co system deposited by PVD on metallic interconnects for SOFC Applications. Material Science Forum 595-598, pp. 797 - 804 (2008)
Swaminathan, S.; Koll, T.; Pohl, M.; Wieck, A. D.; Spiegel, M.: Hot-dip galvanizing simulation of model alloys and industrial steel grades: Correlation between surface chemistry and wettability. Steel Res. Int. 79 (1), pp. 66 - 72 (2008)
Asteman, H.; Spiegel, M.: Investigation of the HCl (g) attack on pre-oxidized pure Fe, Cr, Ni and commercial 304 steel at 400 °C. Corrosion Science 49 (9), pp. 3626 - 3637 (2007)
Li, Y. S.; Niu, Y.; Spiegel, M.: High temperature interaction of Al/Si-modified Fe–Cr alloys with KCl. Corrosion Science 49 (4), pp. 1799 - 1815 (2007)
Ruh, A.; Spiegel, M.: Thermodynamic and kinetic consideration on the corrosion of Fe, Ni and Cr beneath a molten KCl-ZnCl2 micture. Corr.Sci. 48, pp. 679 - 695 (2006)
Ruh, A.; Spiegel, M.: Influence of gas phase composition on the kinetics of chloride melt induced corrosion of pure iron. Mater. and Corr. 57, pp. 237 - 243 (2006)
Sánchez Pastén, M.; Spiegel, M.: High temperature corrosion of metallic materials in simulated waste incineration environments at 300-600 °C. Mater. and Corr. 57, pp. 192 - 195 (2006)
Li, Y. S.; Spiegel, M.; Shimada, S.: Corrosion behaviour of model alloys with NaCl–KCl coating. Materials Chemistry and Physics 93 (1), p. 217 - 217 (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 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.
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…
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.
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,...
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
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.
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…