Dumont, M.; Borbély, A.; Kaysser-Pyzalla, A. R.; Sander, P. M.: Long bone cortices in a growth series of Apatosaurus sp. (Dinosauria: Diplodocidae): Geometry, body mass, and crystallite orientation of giant animals. Biological Journal of the Linnean Society 112 (4), pp. 782 - 798 (2014)
Dumont, M.; Kostka, A.; Sander, P. M.; Borbély, A.; Kaysser-Pyzalla, A. R.: Size and size distribution of apatite crystals in sauropod fossil bones. Palaeogeography, Palaeoclimatology, Palaeoecology 310, pp. 108 - 116 (2011)
Springer, H.; Kostka, A.; Payton, E.J.; Raabe, D.; Kaysser-Pyzalla, A. R.; Eggeler, G.: On the formation and growth of intermetallic phases during interdiffusion between low-carbon steel and aluminum alloys. Acta Materialia 59 (4), pp. 1586 - 1600 (2011)
Juricic, C.; Pinto, H.; Cardinali, D.; Klaus, M.; Genzel, C.; Pyzalla, A. R.: Evolution of microstructure and internal stresses in multi-phase oxide scales grown on (110) surfaces of iron single crystals at 650 °C. Oxidation of Metals 73 (1-2), pp. 115 - 138 (2010)
Juricic, C.; Pinto, H.; Cardinali, D.; Klaus, M.; Genzel, C.; Pyzalla, A. R.: Effect of Substrate Grain Size on the Growth, Texture and Internal Stresses of Iron Oxide Scales Forming at 450 °C. Oxidation of Metals 73 (1-2), pp. 15 - 41 (2010)
Rojas, D.; Prat, O.; Garcia, J.; Carrasco, C.; Sauthoff, G.; Kaysser-Pyzalla, A. R.: Design and Characterization of microstructure evolution during creep of 12%Cr heat resistant steels. Materials Science and Engineering A 527, pp. 3864 - 3876 (2010)
Barbatti, C.; Garcia, J.; Pinto, H.; Kostka, A.; Di Prinzio, A.; Staia, M.; Pitonak, R.; Pyzalla, A. R.: Influence of micro-blasting on the microstructure and residual stresses of CVD κ-Al2O3 coatings. Surface and Coatings Technology 203 (24), pp. 3708 - 3717 (2009)
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)
Weber, S.; Theisen, W.; Castro, F.; Pyzalla, A. R.: Influence of Gas Atmosphere and Hard Particle Addition on the Sintering Behaviour of High Alloyed PM Cold Work Tool Steels. Materials Science and Engineering A 515 (1-2), pp. 175 - 182 (2009)
Agudo Jácome, L.; Weber, S.; Leitner, A.; Arenholz, E.; Bruckner, J.; Hackl, H.; Pyzalla, A. R.: Influence of Filler Composition on the Microstructure and Mechanical Properties of Steel-Aluminium Joints Produced by Metal Arc Joining. Advanced Engineering Materials 11 (5), pp. 350 - 358 (2009)
Barbatti, C. F.; Garcia, J.; Brito, P.; Pyzalla, A. R.: Influence of WC substitution by TiC and (Ta,Nb)C on the oxidation resistance of Co-based cemented carbides. International Journal of Refractory Metals and Hard Materials 27, pp. 768 - 776 (2009)
Coelho, R. S.; Kostka, A.; Pinto, H.; Rothkirch, A.; Pyzalla, A. R.; Dos Santos, J.: Microstructure and Residual Stress Formation in an AA6040 to AZ31B Friction Stir Weld. Advances in X-Ray Analyses 52, pp. 360 - 367 (2009)
Kostka, A.; Coelho, R. S.; dos Santos, J.; Pyzalla, A. R.: Microstructure of friction stir welding of aluminium alloy to magnesium alloy. Scripta Materialia 60, pp. 953 - 956 (2009)
Pinto, H.; Corpas, M.; Guio, J. A.; Pyzalla, A. R.; Jahn, A.; Standfuß, J.: Microstructure and Residual Stress Formation in Induction-Assisted Laser Welding of the Steel S690QL. Steel Research International 80 (1), pp. 39 - 49 (2009)
Coelho, R. S.; Kostka, A.; dos Santos, J.; Pyzalla, A. R.: ESBD technique visualization of material flow in aluminium to steel friction-stir dissimilar welding. Advanced Engineering Materials 10 (12), pp. 1127 - 1133 (2008)
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)
Karlsohn, M.; Weber, S.; Alavi Zaree, S. R.; Müller, S.; Theisen, W.; Reimers, W.; Pyzalla, A. R.: Manufacturing, Microstructure and Wear Resistance of Novel Hot Extruded Fe-Base Metal Matrix Composites. Powder Metallurgy 51 (1), pp. 31 - 37 (2008)
Agudo, L.; Jank, N.; Wagner, J.; Weber, S.; Schmaranzer, C.; Arenholz, E.; Bruckner, J.; Hackl, H.; Pyzalla, A. R.: Investigation of Microstructure and Mechanical Properties of Steel-Aluminium Joints Produced by Metal Arc Joining. Steel Research International 29 (7), pp. 530 - 535 (2008)
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…
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…
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…
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 plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
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.