Silva, P. A.; Weber, S.; Inden, G.; Pyzalla, A. R.: Influence of hardparticleaddition and chemical interdiffusion on the properties of hot extruded toolsteel compounds. Materials Science and Engineering: A 516 (1-2), pp. 193 - 200 (2009)
Röttger, A.; Karslohn, M.; Theisen, W.; Silva, P.; Weber, S.; Pyzalla, A. R.: Mechanical Properties of Co-Extruded Wear Resistant Powder Metallurgical Layers on Steel Substrates. Materialwissenschaft und Werkstofftechnik 39 (11), pp. 830 - 838 (2008)
Silva, P. A.; Weber, S.; Karlsohn, M.; Müller, S.; Theisen, W.; Reimers, W.; Pyzalla, A. R.: Interface Characterization of Abrasion Resistant Coatings Co-extruded on Steel Substrates. Steel Research International 11 (79), pp. 885 - 894 (2008)
Karlsohn, M.; Röttger, A.; Silva, P. A.; Weber, S.; Pyzalla, A. R.; Reimers, W.; Theisen, W.: Hot Direct Extrusion of Abrasion Resistant Fe-Base Metal Matrix Composites - Microstructure and Wear Properties. In: Friction, Wear and Wear Protection. Intern. Symposium on Friction, Wear and Wear Protection, Aachen, Germany, April 09, 2008 - April 11, 2008. Wiley-VCH Verlag GmbH & Co. KGaA (2009)
Silva, P. A.; Weber, S.; Röttger, A.; Theisen, W.; Reimers, W.; Pyzalla, A. R.: Hot Direct Extrusion of Abrasion Resistant Fe-base Metal Matrix Composites - Interface Characterization and Mechanical Properties of Co-Extruded Layered Structures. In: Friction, Wear and Wear Protection. Int. Symposium on Friction, Wear and Wear Protection, Aachen, Germany, April 09, 2008 - April 11, 2008. Wiley-VCH Verlag GmbH & Co. KGaA (2009)
Silva, P. A.: Hot Direct Extrusion of Abrasion Resistant Fe-base Metal Matrix Composites - Interface Characterization and Mechanical Properties of Co-Extruded Layered Structures. DGM International Symposium "Friction, Wear and Wear Protection", Aachen, Germany (2008)
Pinto, H.; Silva, P. A.; Kostka, A.; Chladil, H. F.; Clemens, H.; Pyzalla, A. R.: Microstructure and Residual Stress Formation in Oxide Layers Grown on the Gamma-Ti–45Al–5Nb Alloy. Euromat 2007, Nürnberg (2007)
Silva, P.; Pinto, H.; Kostka, A.; Chladil, H. F.; Pyzalla, A.: Microstructure and Residual Stress Formation in Oxide Layers Grown in High Niobium Containing g-TiAl Based Alloy. SNI 2006, German Conference for Research with Synchrotron Radiation, Neutrons and Ion Beams at Large Facilities, Hamburg, Germany (2006)
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…
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.
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.
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.