Dumont, M.; Borbély, A.; Sander, P. M.; Kostka, A.; Kaysser-Pyzalla, A. R.: Texture and nanostructure of Sauropod bones: Implications for biomechanics. 1st International symposium on paleohistology, Barcelona, Spain (2011)
Kostka, A.; Song, J.; Raabe, D.; Veehmayer, M.: Microstructure and properties of interfaces formed by explosion cladding of Ti-Steel. XXI Conference on Applied Crystallography, Zakopane, Poland (2009)
Dumont, M.; Kostka, A.; Sander, M.; Borbély, A.; Pyzalla, A. R.: Comparison of apatite crystallite sizes in sauropod and mammal fossil bones. 6th Bone diagenesis meeting, Poppelsdorfer Schloss, University of Bonn, Germany (2009)
Springer, H.; Kostka, A.: Verbinden von hochfestem Stahl mit einer Aluminiumlegierung durch Rührreibschweißen. 4. GKSS Workshop, Geesthacht, Germany (2009)
Kostka, A.: Microstructure of Dissimilar Al to Steel Friction Stir Welds. XIII International Conference on Electron Microscopy, Zakopane, Poland (2008)
Kostka, A.: Microstructure and Properties of Al to Steel Friction Stir Overlap Welds. 7th International Friction Stir Welding Symposium, Awaji Island, Japan (2008)
Kostka, A.: ESBD Microstructure and Material Flow Characterization of an AA6181-T4 Aluminium Alloy to DP600 High Steel Friction Stir Butt-joint Weld. 3rd FSW Modelling and Material Flow Seminar, Geesthacht, Germany (2008)
Coelho, R. S.; Kostka, A.; Sheikhi, S.; Kocak, M.; Dos Santos, J.; Pyzalla, A. R.: Charakterisierung der Mikrostruktur und Verformung in Mg-Mg-Laserschweißnähten und Al-Stahl-Reibrührschweißverbindungen. 54. Metallkunde-Kolloquium Werkstoffforschung, Lech / Österreich (2008)
Garcia, J.; Lammer, A.; Garcia, L. F.; Weber, S.; Kostka, A.; Pyzalla, A. R.: Investigations of Wear Mechanisms in Diamond Tools with Fe-Based Matrices Reinforced with WC-Co Particles. Intern. Symposium on Friction, Wear and Wear Protection, Aachen, Germany (2008)
Garcia, L. F.; Garcia, J.; Kostka, A.; Weber, S.; Lammer, A.: Wear Behaviour of Cooper-Iron-Cobalt Diamond Tool Bonding Matrices Reinforced with Hardmetal Granulates. 9th Intern. Conference on the Science of Hard Materials, Montego Bay, Jamaica (2008)
Coelho, R. S.; Kostka, A.; Sheikhi, S.; dos Santos, J.; Pyzalla, A. R.: Friction Stir Welding of ZStE340 High-strength Steel and AA6181-T4 Aluminium Alloy. SOLVSTIR - International Seminar on Friction Stir Welding of Steels, Geesthacht (2007)
Agudo, L.; Pinto, H.; Kostka, A.; Weber, S.; Wagner, J.; Arenholz, E.; Bruckner, J.; Pyzalla, A. R.: Study of Microstructure and Residual Stresses in Dissimilar Al/Steel Welds Produced by Cold Metal Transfer. MECASENS IV, Wien (2007)
Coelho, R. S.; Kostka, A.; Riekehr, S.; Kocak, M.; Pyzalla, A. R.: Microstructure and residual stress of Nd:YAG laser AZ31B butt welds. MECASENS IV, Wien, Austria (2007)
Agudo, L.; Kostka, A.; Weber, S.; Wagner, J.; Arenholz, E.; Bruckner, J.; Pyzalla, A. R.: Al/Steel welds: Fundamental investigation of intermetallic phases. 4th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, FeAl2007, Interlaken, Switzerland (2007)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
This project aims to investigate the dynamic hardness of B2-iron aluminides at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1 and study the microstructure evolution across strain rate range.
This project deals with the phase quantification by nanoindentation and electron back scattered diffraction (EBSD), as well as a detailed analysis of the micromechanical compression behaviour, to understand deformation processes within an industrial produced complex bainitic microstructure.
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.