Kumar, K. S.; Stein, F.; Palm, M.: An in-situ electron microscopy study of microstructural evolution in a Co–Co2Nb binary alloy. MRS Fall Meeting 2008, Boston, MA, USA (2008)
Vogel, S. C.; Eumann, M.; Palm, M.; Stein, F.: Investigation of the crystallographic structure of the ε phase in the Fe–Al system by high-temperature neutron diffraction. 20th Annual Rio Grande Symposium on Advanced Materials 2008, Albuquerque, NM, USA (2008)
Kumar, K. S.; Stein, F.; Palm, M.: Preliminary in-situ TEM observations of phase transformations in a Co–15 at.% Nb alloy. Workshop "The Nature of Laves Phases XI", MPIE Düsseldorf, Germany (2008)
Stein, F.; Ishikawa, S.; Takeyama, M.; Kumar, K. S.; Palm, M.: Phase equilibria in the Cr–Ti system studied by diffusion couples and equilibrated two-phase alloys. Workshop "The Nature of Laves Phases XI", MPI für Eisenforschung, Düsseldorf, Germany (2008)
Stein, F.; Prymak, O.; Dovbenko, O. I.; Palm, M.: Phase equilibria of Laves phases in ternary Nb–X–Al systems with X = Cr, Fe, Co. Discussion Meeting on Thermodynamics of Alloys - TOFA 2008, Krakow, Poland (2008)
Vogel, S. C.; Eumann, M.; Palm, M.; Stein, F.: Investigation of the crystallographic structure of the ε phase in the Fe–Al system by high-temperature neutron diffraction. American Conference on Neutron Scattering (ACNS 2008), Santa Fe, New Mexico, USA (2008)
Krein, R.; Palm, M.: The influence of Cr and B additions on the mechanical properties and oxidation behaviour of L21-ordered Fe–Al–Ti based aluminides at high temperature. TMS Annual Meeting 2008, New Orleans, LA, USA (2008)
Brunetti, G.; Krein, R.; Grosdidier, T.; Palm, M.: Evaluation of the Brittle-to-Ductile Transition Temperature (BDTT)and the fracture modes in Fe–Al–X alloys. 4th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Interlaken, Switzerland (2007)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
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.
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.
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.