Zhong, Q.; Rohwerder, M.; Chen, W.; Liu, D.: Fuzzy cluster analysis constructed by numeric genetic algorithm (NGA) and its use in the evaluation of heterogeneity of temporarily protective oil coating. Materials and Corrosion-Werkstoffe und Korrosion 55 (12), pp. 930 - 934 (2004)
Zhong, Q.; Rohwerder, M.; Zhang, Z.: Study of lubricants and their effect on the anti-corrosion performance as temporarily protective oil coatings. Surface and Coatings Technology 185 (2-3), pp. 234 - 239 (2004)
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)
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)
Zhong, Q. D.; Rohwerder, M.; Zhao, Z.; Jin, Z.: Semiconsucting behavior of temporarily protective oil coating on the surface of AISI 304 satinles steel in 5% Na2SO4 soultion during its degradation. Journal of the Electrochemical Society 151, 7, pp. B446 - B452 (2004)
Zhong, Q.; Rohwerder, M.; Zhao, Z.; Jin, Z.: Semiconducting behavior of temporarily protective oil coating on the surface of AISI 304 stainless steel in 5% Na2SO4 solution during its degradation. Journal of the Electrochemical Society 151 (7), pp. B446 - B452 (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)
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)
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…
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.
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…
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
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.