Rohwerder, M.: Messung von Wasserstoffpermeation und -effusion mit der Kelvinsonde: Potentiometrie, Wasserstofftransport und -speicherung, Wasserstoffversprödung, Wasserstoffaufnahme und -abgabe. 3-Länder-Korrosionstagung, Frankfurt, Germany (2023)
Rohwerder, M.: Kelvin probe based methods for measuring effusion and diffusion of hydrogen from and through materials at high resolution and sensitivity. 13th International Symposium on Electrochemical Methods in Corrosion Research (EMCR), St Pierre d’Oléron, France (2022)
Rohwerder, M.: Measuring Hydrogen Permeation and Effusion by Kelvin Probe-Based Techniques: New Insights into Limitations and Possibilities. Gordon Research Conference 2022 on Aqueous Corrosion, New London, NH, USA (2022)
Rohwerder, M.: Scanning Kelvin Probe Techniques for the Investigation of Corrosion, Hydrogen Uptake and Permeation of Zinc Alloy Coatings on Steels. Galvatech 2021, Virtual conference (2021)
Prabhakar, J. M.; de Vooys, A.; Rohwerder, M.: Chromium coatings electrodeposited from trivalent chromium electrolyte: Characterization and their effect on Cathodic Delamination behavior of organic coatings. GfKORR-Jahrestagung, online conference (2020)
Prabhakar, J. M.; de Vooys, A.; Rohwerder, M.: Cathodic delamination behaviour of polymer coatings on chromium coatings electrodeposited from trivalent chromium electrolyte. EUROCORR 2020, virtual Congress (2020)
Rohwerder, M.: Strategies for enhancing Corrosion Protection by Organic Coatings. 71st Annual Meeting of the International Society of Electrochemistry, virtual (2020)
Rohwerder, M.: Zinc alloy coatings and nano-composite coatings for corrosion protection: From the basics to new challenges. IIM NMD ATM 2019: Advanced Materials for Industrial and Societal Applications, Kovalam, Thiruvananthapuram, India (2019)
Rohwerder, M.: Intelligent coatings for corrosion protection: on the need for new coating concepts. International Conference on Corrosion Protection and Application (ICCPA 2019), Chongqing, China (2019)
Rohwerder, M.: Scanning Kelvin Probe based techniques for mapping hydrogen distribution in metals and their application for investigating hydrogen embrittlement. Workshop “Hydrogen in Metals”, St Anne’s College, Oxford, UK (2019)
Uebel, M.; Rabe, M.; Rohwerder, M.: The Influence of Microstructure on Zn–Al–Mg Alloy Reactivity: A SKP-based Approach. Scientific Advisory Board Meeting 2019, 6-years Evaluation of the Max-Planck-Institut für Eisenforschung GmbH – Scientific Highlights Session, Düsseldorf, Germany (2019)
Rohwerder, M.: Die Kelvinsondentechnik in der Korrosion: von der Grundlagenforschung bis hin zu potentiellen Anwendungen im Feld. ProcessNet Meeting “Elektrochemische Prozesse”, Dechema-Haus, Frankfurt, Germany (2019)
Uebel, M.; Rohwerder, M.: The influence of microstructure on Zn–Al–Mg alloy reactivity investigated by SKP and SKPFM in changing atmospheres. Eurocorr 2018, Krakow, Poland (2018)
Rohwerder, M.; Tran, T. H.: Novel zinc-nanocontainer composite coatings for intelligent corrosion protection. 11th Intrenational Conference on Zinc And Zinc Alloy Coated Steel Sheet- GALVATECH 2017, The University of Tokyo, Tokyo, Japan (2017)
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 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…