Stein, F.; Dovbenko, O. I.; Palm, M.: Phase Relations between Laves Phases in Transition Metal Systems - Case Studies: Co–Nb, Al–Co–Nb, Cr–Ti, Fe–Zr, Al–Fe–Zr. EUROMAT 2005, Prague, Czech Republic (2005)
Dovbenko, O. I.; Palm, M.; Stein, F.: Phase Equilibria in the Al–Co–Nb Ternary System in the Vicinity of the Laves Phases. CALPHAD XXXIV, Maastricht, The Netherlands (2005)
Palm, M.: Concepts derived from phase diagram studies for the strengthening of Fe–Al-based alloys. 2nd Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Toulouse, France (2005)
Dovbenko, O. I.; Palm, M.; Stein, F.: Investigation of the Phase Equilibria in the Al–Co–Nb System. Preliminary Results. International Workshop "Laves Phases IV", MPI für Eisenforschung, Düsseldorf, Germany (2005)
Dovbenko, O. I.; Palm, M.; Stein, F.: Investigation of the Phase Equilibria in the Al–Co–Nb System using Liquid-Solid Diffusion Couples. Preliminary Results. COST 535 Diffusion Couple Workshop, MPI für Eisenforschung, Düsseldorf, Germany (2004)
Stein, F.; Jiang, D.; Palm, M.; Sauthoff, G.: Laves Phase Polytypism in the Co–Nb System. TOFA 2004 - Discussion Meeting on Thermodynamics of Alloys, Wien, Austria (2004)
Palm, M.: Concepts derived from phase diagram studies for the strengthening of Fe–Al-based alloys. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, MPI für Eisenforschung. Düsseldorf, Germany (2004)
Palm, M.; Eumann, M.; Sauthoff, G.: Improving Properties of Fe-Al Based Alloys by Increasing the Stability Range of DO3/L21 Order. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Düsseldorf (2004)
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)
Palm, M.: Determination and application of the Al–Ti and Al–Fe–Ti phase diagrams. Colloquium at ONERA / Colloquium at Universite de Rouen, Chatillon / Rouen, France (2003)
Stein, F.; Palm, M.; Sauthoff, G.: Structures and Stability of Laves Phases. TMS Annual Meeting - Intern. Symp. Intermetallic and Advanced Metallic Materials - A Symposium Dedicated to Dr. C. T. Li on His 65th Birthday, San Diego, CA, USA (2003)
Stein, F.; Sauthoff, G.; Palm, M.: Intermetallic Phases and Phase Equilibria in the Fe–Zr and Fe–Zr–Al Systems. Discussion Meeting on Thermodynamics of Alloys (TOFA 2002), Rome, Italy (2002)
Palm, M.; Sauthoff, G.: Characterization and Processing of an Advanced Intermetallic NiAl-Base Intermetallic Alloy for High-Temperature Applications. Structural Intermetallics 2001 (ISSI-3), Jackson Hole, Wyoming (2002)
Palm, M.: Evaluation of alloy systems for developing new intermetallic lightweight intermetallic materials. Colloquium at CIRIMAT-ENSIACET, Toulouse, France (2002)
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…
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…
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.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
Understanding hydrogen-assisted embrittlement of advanced structural materials is essential for enabling future hydrogen-based energy industries. A crucially important phenomenon in this context is the delayed fracture in high-strength structural materials. Factors affecting the hydrogen embrittlement are the hydrogen content,...
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…