Kreiner, G.; Grüner, D.; Grin, Y.; Stein, F.; Palm, M.; Ormeci, A.: Structure and disorder of the Laves phases in the Co–Nb system. MRS Fall Meeting 2009, Boston, MA, USA, November 30, 2009 - December 04, 2009. MRS Fall Meeting 2009 1128, pp. 487 - 492 (2009)
Prymak, O.; Stein, F.; Kerkau, A.; Ormeci, A.; Kreiner, G.; Frommeyer, G.; Raabe, D.: Phase equilibria in the ternary Nb–Cr–Al system and site occupation in the hexagonal C14 Laves phase Nb(AlxCr1–x)2. In: Materials Research Society Symposium Proceedings, pp. 499 - 504 (Ed. Proceedings, M. S.). Materials Research Society Symposium. (2009)
Voß, S.; Stein, F.; Grüner, D.; Kreiner, G.; Frommeyer, G.; Raabe, D.: Composition Dependence of the Hardness of Laves Phases in the Fe–Nb and Co–Nb Systems. In: Materials Research Society Symposium Proceedings, Vol. 1128, pp. 469 - 474. 2008 MRS Fall Meeting, Boston, MA, USA, December 01, 2008 - December 04, 2008. Materials Research Society, Warrendale, PA, USA (2009)
Siggelkow, L.; Kreiner, G.; Palm, M.; Stein, F.: Synthese und Eigenschaften der intermetallischen Phasen Nb2Co7. Workshop "The Nature of Laves Phases VIII", Düsseldorf, Germany (2004)
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…
We plan to investigate the rate-dependent tensile properties of 2D materials such as HCP 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.
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.
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…
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.
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.
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.