Hassel, A. W.: Detection of Elementary Events in the Depassivation of Nitinol under Mechanical Influence. Go Okamoto Centennial Meeting, Sapporo, Japan (2005)
Hassel, A. W.: Self organised nanostructures from directionally solidified eutectics. Seminar at the National Institute for Materials Science, Tsukuba, Japan (2005)
Bello Rodriguez, B.; Milenkovic, S.; Hassel, A. W.; Schneider, A.: Formation of self-organised nanostructures from directionally solidified eutectic alloys. 12th International Symposium on Metastable and nano Materials (ISMANAM), Paris, France (2005)
Asteman, H.; Lill, K.; Hassel, A. W.; Spiegel, M.: Local Measurements of the Semi conducting Properties of alpha-Fe2O3 and Cr2O3 Films by Impedance Measurement using the Scanning Droplet Cell Technique. 9th International Symposium on the Passivity of Metals and Semiconductors, Paris, France (2005)
Bello Rodriguez, B.; Hassel, A. W.; Schneider, A.: Deposition of Noble Metals on Nanopores for the Formation of Nanodisc Electrodes. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Milenkovic, S.; Schneider, A.: Preparation of One-Dimensionally Structured Electrode Materials by Directional Solidification. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Lill, K. A.; Hassel, A. W.; Stratmann, M.: On the Electrochemical Behaviour of Single Grains of FeCrAl Ferritic Steels. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Smith, A.; Stratmann, M.; Hassel, A. W.: Transient Measurements of Single Particle Impacts on Disk Shaped Microelectrodes for the Investigation of Tribocorrosion. 207th Meeting of The Electrochemical Society, Québec City, Canada (2005)
Hassel, A. W.; Diesing, D.: Modifikation der Fehlstellenkonzentration in Metall-Isolator-Metall-Kontakten und deren Einfluß auf das elektronische Tunneln. Bunsentagung 2005, Frankfurt, Germany (2005)
Mingers, A. M.; Hassel, A. W.; Stratmann, M.; van der Heyden, M.: A Combined Analytical and Electrochemical Method to Evaluate the Stability of Thermal Spray Coatings. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Smith, A.; Hassel, A. W.: Detection of repassivation transients from single particle impingement on disc shaped microelectrodes. 81. AGEF Seminar „Tribocorrosion“, Düsseldorf, Germany (2005)
Hassel, A. W.: Elektrochemie mit und an Nanoelektrodenarrays. 79. AGEF-Symposium, 25 Jahre Elektrochemie in Düsseldorf, Heinrich-Heine-Universität, Düsseldorf, Germany (2004)
Lill, K. A.; Stratmann, M.; Frommeyer, G.; Hassel, A. W.: On the corrosion resistance of a new class of FeCrAl light weight ferritic steels. 55th Meeting of the International Society of Electrochemistry, Thessaloniki, Greece (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…
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.
Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
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.