Zhong, Q.; Xu, N.; Zhou, G.; Rohwerder, M.: Study of electronic-ionic conducting transformation of temporarily protective oil coating in salt solution. Materials and Corrosion-Werkstoffe und Korrosion 54 (2), pp. 97 - 105 (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)
Rebhan, M. E.; Rohwerder, M.; Stratmann, M.: Formation of mesoscopic structures by the CVD of SiH4 on Fe(100). Chemical Vapor Deposition 8 (6), pp. 259 - 261 (2002)
Hornung, E.; Rohwerder, M.; Stratmann, M.: Elektrochemische Reaktionen an verborgenen Metall/Polymer-Grenzflächen Elektrochemische Verfahren für neue Technologien. Gesellschaft Deutscher Chemiker: GDCh-Monographien (Elektrochemische Verfahren für neue Technologien: Beiträge, die anlässlich der 40. Jahrestagung der Fachgruppe "Angewandte Elektrochemie" im September 2000 in Ulm) 21, pp. 22 - 30 (2001)
Rebhan, M. E.; Rohwerder, M.; Stratmann, M.: Electrochemical properties of iron covered by CVD-silicon and silicon-organic molecules. Materials and Corrosion-Werkstoffe und Korrosion 52 (12), pp. 936 - 939 (2001)
Fili, T.; Rohwerder, M.; Stratmann, M.: Influence of Surface Plasma Pretreatment on the Interface Properties of a-SiC:H-Covered Steel Substrates. Advanced Engineering Materials 2, 6, pp. 378 - 380 (2000)
Rohwerder, M.; Stratmann, M.: Surface modification by ordered monolayers: New ways of protecting materials against corrosion. MRS Bulletin 24 (7), pp. 43 - 47 (1999)
Rohwerder, M.; de Weldige, K.; Stratmann, M.: Potential dependence of the kinetics of thiol self-organization on Au(111). Journal of Solid State Electrochemistry 2 (2), pp. 88 - 93 (1998)
Vago, E. R.; de Weldige, K.; Rohwerder, M.; Stratmann, M.: Electroreduction of oxygen on octadecylmercaptan self-assembled monolayers. Fresenius' Journal of Analytical Chemistry 353 (3-4), pp. 316 - 319 (1995)
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.
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…