Lill, K. A.; Stratmann, M.; Frommeyer, G.; Hassel, A. W.: On the corrosion resistance of a new class of FeCrAl light weight ferritic steels. 55th Meeting of the International Society of Electrochemistry, Thessaloniki, Greece (2004)
Falat, L.; Schneider, A.; Sauthoff, G.; Frommeyer, G.: Iron aluminium alloys with strengthening carbides and intermetallic phases for high-temperature applications. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, MPIE Düsseldorf (2004)
Frommeyer, G.; Derder, C.; Jiménez, J. A.: High temperature plasticity -superplasticity and creep- of Fe3Al based alloys. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, MPIE Düsseldorf (2004)
Frommeyer, G.; Liu, Z. G.; Wesemann, J.; Wanderka, N.: Investigations on D03/B2 ordering in Fe3Al by X-ray Diffraction, TEM and APFIM. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, MPIE Düsseldorf (2004)
Stein, F.; Schneider, A.; Frommeyer, G.: Quaternary Fe3Al-Based Alloys with Transition Metals: Effect of Alloying Additions on the Order-Disorder Transitions and the Mechanical Behaviour. Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, MPI für Eisenforschung GmbH, Düsseldorf, Germany (2004)
Konrad, J.; Zaefferer, S.; Schneider, A.; Raabe, D.; Frommeyer, G.: Texturentwicklung beim Warmwalzen und bei der Rekristallisation von Fe3Al-Basislegierungen. Treffen des Fachausschusses Intermetallische Phasen, MPI Eisenforschung, Düsseldorf (2004)
Frommeyer, G.; Knippscheer, S.: Mikrostrukturen, Eigenschaften und Anwendungen neuentwickelter Leichtbauwerkstoffe auf der Basis von Titanaluminiden. Diehl Symposium, Lengenfeld (2003)
Frommeyer, G.: Structures and Properties of the Refractory Silicides Ti5Si3 and TiSi2 and Ti-Si-(Al) Eutectic Alloys. NATO Advanced Research Workshop: Metallic Materials with high Structural Efficiency, Kiev, Ukraine (2003)
Frommeyer, G.; Brüx, U.: Structures and Properties of Advanced High-Strength and Supra-Ductile Light-Weight Steels. EURO MAT 2003, Lausanne, Schweiz (2003)
Frommeyer, G.: Neuere Entwicklungen der Stahlforschung: Hochfeste und supraduktile TRIP/TWIP Leichtbaustähle. Nordrhein-Westfälische Akademie der Wissenschaften, Düsseldorf, Germany (2003)
Frommeyer, G.: Superplastizität und superplastische Blechumformung von Duplex-Stählen am Beispiel der Qualität X 12 Cr Ni Mo (N) 22-5-3. VDI Seminar: Innovative Rostfreistähle, Düsseldorf (2003)
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…
Grain boundaries (GBs) are regions connecting adjacent crystals with different crystallographic orientations. GBs are a type of lattice imperfection, with their own structure and composition, and as such impact a material’s mechanical and functional properties. Structural motifs and phases formed at chemically decorated GBs can be of a transient…
Understanding hydrogen-microstructure interactions in metallic alloys and composites is a key issue in the development of low-carbon-emission energy by e.g. fuel cells, or the prevention of detrimental phenomena such as hydrogen embrittlement. We develop and test infrastructure, through in-situ nanoindentation and related techniques, to study…
Recently developed dual-phase high entropy alloys (HEAs) exhibit both an increase in strength and ductility upon grain refinement, overcoming the strength-ductility trade-off in conventional alloys [1]. Metastability engineering through compositional tuning in non-equimolar Fe-Mn-Co-Cr HEAs enabled the design of a dual-phase alloy composed of…
Because of their excellent corrosion resistance, high wear resistance and comparable low density, Fe–Al-based alloys are an interesting alternative for replacing stainless steels and possibly even Ni-base superalloys. Recent progress in increasing strength at high temperatures has evoked interest by industries to evaluate possibilities to employ…
To design novel alloys with tailored properties and microstructure, two materials science approaches have proven immensely successful: Firstly, thermodynamic and kinetic descriptions for tailoring and processing alloys to achieve a desired microstructure. Secondly, crystal defect manipulation to control strength, formability and corrosion…