Distl, B.; Hauschildt, K.; Pyczak, F.; Stein, F.: Phase Equilibria in the Ti-Rich Part of the Ti–Al–Nb System-Part II: High-Temperature Phase Equilibria Between 1000 and 1300 °C. Journal of Phase Equilibra and Diffusion 43, pp. 554 - 575 (2022)
Gedsun, A.; Stein, F.; Palm, M.: Development of new Fe–Al–Nb(–B) alloys for structural applications at high temperatures. MRS Advances 6, pp. 176 - 182 (2021)
Stein, F.; Leineweber, A.: Laves phases: a review of their functional and structural applications and an improved fundamental understanding of stability and properties. Journal of Materials Science 56, pp. 5321 - 5427 (2021)
Distl, B.; Dehm, G.; Stein, F.: Effect of Oxygen on High‐temperature Phase Equilibria in Ternary Ti‐Al‐Nb Alloys. Zeitschrift für anorganische und allgemeine Chemie 646 (14), pp. 1151 - 1156 (2020)
Luo, W.; Kirchlechner, C.; Li, J.; Dehm, G.; Stein, F.: Composition dependence of hardness and elastic modulus of the cubic and hexagonal NbCo2 Laves phase polytypes studied by nanoindentation. Journal of Materials Research 35 (2), pp. 185 - 195 (2020)
Stein, F.; Merali, M.; Watermeyer, P.: The Co–Ti system revisited: About the cubic-to-hexagonal Laves phase transformation and other controversial features of the phase diagram. Calphad 67, 101681 (2019)
Luo, W.; Kirchlechner, C.; Fang, X.; Brinckmann, S.; Dehm, G.; Stein, F.: Influence of composition and crystal structure on the fracture toughness of NbCo2 Laves phase studied by micro-cantilever bending tests. Materials and Design 145, pp. 116 - 121 (2018)
Li, X.; Schmitt, A.; Heilmaier, M.; Stein, F.: The Effect of the Ternary Elements B, Ti, Cr, Cu, and Mo on Fully Lamellar FeAl + FeAl2 Alloys. Journal of Alloys and Compounds 722, pp. 219 - 228 (2017)
He, C.; Qin, Y.; Stein, F.: Thermodynamic Assessment of the Fe–Al–Nb System with Updated Fe–Nb Description. Journal of Phase Equilibra and Diffusion 38 (5), pp. 771 - 787 (2017)
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.
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.
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.
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…