Tan, K. S.; Hassel, A. W.; Stratmann, M.: Design and construction of a micro-indenter for tribological investigations. Mat.-Wiss. Werkstofftech. 36, pp. 13 - 17 (2005)
van der Kloet, J.; Hassel, A. W.; Stratmann, M.: Effect of Pretreatment on the Intermetallics in Aluminium Alloy 2024-T3. Zeitschrift für Physikalische Chemie 219, pp. 1505 - 1518 (2005)
Vander Kloet, J.; Hassel, A. W.; Stratmann, M.: Effect of pretreatment on the intermetallics in aluminum alloy 2024-T3. Zeitschrift fur Physikalische Chemie-International Journal of Research in Physical Chemistry & Chemical Physics 219 (11), pp. 1505 - 1518 (2005)
Wapner, K.; Schoenberger, B.; Stratmann, M.; Grundmeier, G.: Height-regulating scanning Kelvin probe for simultaneous measurement of surface topology and electrode potentials at buried polymer/metal interfaces. Journal of the Electrochemical Society 152 (3), pp. E114 - E122 (2005)
Wapner, K.; Schönberger, B.; Stratmann, M.; Grundmeier, G.: Applications of a new height regulated Scanning Kelvin Probe in Adhesion and Corrosion Science. Journal of the Electrochemical Society 152 (3), pp. E114 - E122 (2005)
Baumert, B.; Stratmann, M.; Rohwerder, M.: The deformation response of ultra-thin polymer films on steel sheet in a tensile straining test: The role of slip bands emerging at the polymer/metal interface. Zeitschrift für Metallkunde 95 (6), pp. 447 - 455 (2004)
Barranco, V.; Thiemann, P.; Yasuda, H. K.; Stratmann, M.; Grundmeier, G.: Spectroscopic and electrochemical characterisation of thin cathodic plasma polymer films on iron. Applied Surface Science 229 (1-4), pp. 87 - 96 (2004)
Bengtsson Blücher, D.; Svensson, J.-E.; Johansson, L.-G.; Rohwerder, M.; Stratmann, M.: Scaning Kelvin Probe Force Microscopy: A Useful Tool for Studying Atmospheric Corrosion of MgAl Alloys In Situ. Journal of the Electrochemical Society 151, 12, pp. B621 - B626 (2004)
Bonk, S.; Wicinski, M.; Hassel, A. W.; Stratmann, M.: Electrochemical characterizations of precipitates formed on zinc in alkaline sulphate solution with increasing pH values. Electrochemistry Communicatios 6, 8, pp. 800 - 804 (2004)
Grundmeier, G.; Thiemann, P.; Carpentier, J.; Shirtcliffe, N.; Stratmann, M.: Tailoring of the morphology and chemical composition of thin organosilane microwave plasma polymer layers on metal substrates. Thin Solid Films 446 (1), pp. 61 - 71 (2004)
van der Kloet, J.; Schmidt, W.; Hassel, A. W.; Stratmann, M.: The Role of Chromate in Filiform Corrosion Inhibition. Electrochimica Acta 49 (10), pp. 1675 - 1685 (2004)
Hausbrand, R.; Stratmann, M.; Rohwerder, M.: Delamination resistant zinc alloys: Simple concept and results on the system zinc-magnesium. Steel Research International 74 (7), pp. 453 - 458 (2003)
Lobnig, R.; Sinclair, J. D.; Unger, M.; Stratmann, M.: Mechanism of atmospheric corrosion of copper in the presence of ammonium sulphate particles - Effect of surface particle concentration. Journal of the Electrochemical Society 150 (6), pp. A835 - A849 (2003)
Hassel, A. W.; Stratmann, M.: Microscopic and nanoscopic aspects of corrosion and corrosion protection. Electrochimica Acta 48, 9, pp. 1093 - 1324 (2003)
van der Kloet, J.; Schmidt, W.; Hassel, A. W.; Stratmann, M.: The Role of Chromate in Filiform Corrosion Inhibition. Electrochimica Acta 48 (9), pp. 1211 - 1222 (2003)
Maupai, S.; Dakkouri, A. S.; Stratmann, M.; Schmuki, P.: Tip-induced nanostructuring of Au3Cu(001) with an electrochemical scanning tunneling microscope. Journal of the Electrochemical Society 150, 3, pp. C111 - C114 (2003)
Rebhan, M. E.; Rohwerder, M.; Stratmann, M.: Delamination of polymeric coatings on silidized iron. Materials and Corrosion-Werkstoffe und Korrosion 54 (1), pp. 19 - 22 (2003)
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…