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…
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
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.
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…
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,...
Understanding hydrogen-assisted embrittlement of advanced high-strength steels is decisive for their application in automotive industry. Ab initio simulations have been employed in studying the hydrogen trapping of Cr/Mn containing iron carbides and the implication for hydrogen embrittlement.
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…