Genchev, G.; Cox, K.; Sarfraz, A.; Bosch, C.; Spiegel, M.; Erbe, A.: Sour corrosion – Investigation of anodic iron sulfide layer growth in saturated H2S saline solutions. Gordon Research Seminar-Aqueous Corrosion, New London, NH, USA (2014)
Lange, M. M.; Borodin, S.; Renner, F. U.; Spiegel, M.: Grain boundary chemistry in nickel alloys applied in 700°C coal-power plant. High Temperature Corrosion - Gordon Research Seminar , New London, NH, USA (2013)
Lange, M. M.; Borodin, S.; Renner, F. U.; Spiegel, M.: Grain boundary chemistry in nickel alloys applied in 700°C coal-power plant. High Temperature Corrosion - Gordon Research Conference, New London, NH, USA (2013)
Lange, M. M.; Borodin, S.; Renner, F. U.; Spiegel, M.: Grain boundary chemistry in nickel alloys applied in 700°C coal-power plant. High Temperature Corrosion - Gordon Research Seminar , New London, NH, USA (2013)
Lange, M. M.; Borodin, S.; Renner, F. U.; Spiegel, M.: Grain boundary chemistry in nickel alloys applied in 700°C coal-power plant. High Temperature Corrosion - Gordon Research Conference, New London, NH, USA (2013)
Brito, P.; Pinto, H.; Spiegel, M.; Klaus, M.; Genzel, C.; Pyzalla, A. R.: Phase composition and internal stress development during the oxidation of iron aluminides. ICRS-8, Denver, CO, USA (2008)
Liapina, T.; Spiegel, M.; Stein, F.: Short-term oxidation of Fe–Al: Effect of ternary elements and Al content. 4th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Interlaken, Switzerland (2007)
Asteman, H.; Lill, K. A.; Hassel, A. W.; Spiegel, M.: Preparation and electrochemical characterization by SDC of thin Cr2O3, Fe2O3 and (Cr, Fe)2O3 films thermally grown on Pt substrates. 6th International Symposium on Electrochemical Micro & Nanosystem Technologies, Bonn, Germany (2006)
Bernst, R.; Spiegel, M.: Carburisation of Fe–Al alloys at 1000°C in flowing CO-H2-H2O gas mixture. 3rd Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Mettmann, Germany (2006)
Park, E.; Spiegel, M.: Oxidation resistance of alloys for flexible tubes in dry air and KCl containing atmospheres. Eurocorr 2005, Lisbon, Portugal (2005)
Asteman, H.; Spiegel, M.: Model oxide films- A novel approach to study the chemical breakdown of native HT-oxide barriers. Gordon Research Conference - High Temperature Corrosion, New London, NH, USA (2005)
Parezanovic, I.; Spiegel, M.: Role of B and Mn segregation on the surface chemistry of Fe–B–Mn - model alloys. Gordon Research Conference - High Temperature Corrosion, New London, NH, USA (2005)
Pöter, B.; Spiegel, M.: Studies on the nucleation and growth of oxide films. Gordon Research Conference – High Temperature Corrosion, New London, NH, USA (2005)
Park, E.; Hüning, B.; Borodin, S.; Rohwerder, M.; Spiegel, M.: Initial oxidation of Fe-Cr alloys: In situ STM amd ex-situ SEM studies. 6th International Conference on the Microscopy of Oxidation, Birmingham, UK (2005)
Cha, S. C.; Spiegel, M.: Local reactions of KCl particles with Fe, Ni and Cr surfaces. EFC Workshop: Novel approaches to the improvement of high temperature corrosion resistance, DECHEMA, Frankfurt, Germany (2004)
Sánchez Pastén, M.; Strauch, E.; Spiegel, M.: High temperature corrosion of metallic materials in simulated waste incineration conditions at 300-600 °C. EFC Workshop: Novel approaches to the improvement of high temperature corrosion resistance, DECHEMA, Frankfurt, Germany (2004)
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…
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…
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.
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
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.
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,...
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…