Agudo, L.; Weber, S.; Pinto, H.; Arenholz, E.; Wagner, J.; Hackl, H.; Bruckner, J.; Pyzalla, A.: Study of Microstructure and Residual Stresses in dissimilar Al/Steels welds produced by Cold Metal Transfer. Materials Science Forum 571-572, pp. 347 - 353 (2008)
Barbatti, C.; Garcia, J.; Sket, F.; Kostka, A.; Pyzalla, A. R.: Influence of nitridation on surface microstructure and properties of graded cemented carbides with Co and Ni binders. Surface and Coating Technology 292, pp. 5962 - 5975 (2008)
Coelho, R. S.; Kostka, A.; Pinto, H.; Riekehr, S.; Kocak, M.; Pyzalla, A. R.: Microstructure and Mechanical Properties of Magnesium Alloy AZ31B Laser Beam Welds. Material Science and Engineering A 485, pp. 20 - 30 (2008)
Coelho, R. S.; Kostka, A.; Pinto, H.; Riekehr, S.; Kocak, M.; Pyzalla, A. R.: Microstructure and Residual Stresses in Dissimilar Mg–Al–Zn-alloy Single Overlap Laser Beam Welds. Materials Science Forum 571-572, pp. 361 - 366 (2008)
Coelho, R. S.; Kostka, A.; Sheikhi, S.; dos Santos, J.; Pyzalla, A. R.: Microstructure and Mechanical Properties of an AA6181-T4 Aluminium Alloy to HC340LA High Strength Friction Stir Overlap Weld. Advanced Engineering Materials 10 (10), pp. 961 - 972 (2008)
Dumont, M.; Zoeger, N.; Streli, C.; Wobrauscheck, P.; Falkenberg, G.; Sander, P.M.; Pyzalla, A. R.: Synchrotron XRF Analyses of Element Distribution in Fossilized Sauropod Dinosaur Bones. Powder Diffration Journal 24, pp. 130 - 134 (2008)
Isaac, A.; Sket, F.; Borbély, A.; Sauthoff, G.; Pyzalla, A. R.: Study of cavity evolution during creep by synchrotron microtomography using a volume correlation method. Praktische Metallographie/Practical Metllography 45 (5), pp. 242 - 245 (2008)
Isaac, A.; Sket, F.; Sauthoff, G.; Pyzalla, A.: In-situ 3D Quantification of the Evolution of Creep Cavity Size, Shape and Spatial Orientation using Synchrotron X-ray Tomography. Materials Science and Engineering A 478, pp. 108 - 118 (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)
Agudo, L.; Eyidi, D.; Jank, N.; Bruckner, J.; Schmaranzer, C.; Arenholz, E.; Pyzalla, A. R.: Intermetallic FexAly-Phases in a steel/Al-alloy fusion weld. Journal of Material Science 42, pp. 4205 - 4214 (2007)
Barbatti, C.; Garcia, J.; Liedl, G.; Pyzalla, A. R.: Joining of cemented carbides to steel by laser beam welding. Materials Science and Engineering Technology (Materialwissenschaft und Werkstofftechnik) 38 (11), pp. 907 - 914 (2007)
Pinto, H.; Ito, L.; Crovace, M.; Ferreira, E. B.; Fauth, F.; Wroblewski, T.; Zanotto, E. D.; Pyzalla, A. R.: Surface and bulk residual stresses in Li2O.2SiO2 glass-ceramics. Journal of Non-Crystalline Solids 353, pp. 2307 - 2317 (2007)
Barbatti, C. F.; Sket, F.; Garcia, J.; Pyzalla, A.: Influence of binder metal and surface treatment on the corrosion resistance of (W,Ti)C-based hardmetals. Surface and Coatings Technology 201, 6, pp. 3314 - 3327 (2006)
Juricic, C.; Pinto, H.; Wroblewski, T.; Pyzalla, A.: Dependence of Oxidation Behavior and Residual Stresses in Oxide Layers on Armco Iron Substrate Surface condition. Materials Science Forum 524-525, pp. 963 - 968 (2006)
Pinto, H.; Pyzalla, A.; Hackl, H.; Bruckner, J.: A Comparative Study of Microstructure and Residual Stresses of CMT-, MIG- and Laser-Hybrid Welds. Materials Science Forum 524-525, pp. 627 - 632 (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.