Lesuer, D.R.; Frommeyer, G.; Sherby, O.D.; Syn, C.K.: Nano-Carbides and the Strength of Steels as Assessed by Electrical Resistively Studies. THERMEC 2006, Vancouver, Canada (2006)
Knippscheer, S.; Frommeyer, G.: Neuentwickelte TiAl-Basislegierungen für den Leichtbau von Triebwerks- und Motorkomponenten. Kolloquium IPE Werkstofftechnik, Duisburg, Germany (2006)
Krein, R.; Schneider, A.; Sauthoff, G.; Frommeyer, G.: High-temperature properties of boride-strengthened Fe3Al-based alloys. 13th International Student's Day of Metallurgy, Leoben, Austria (2006)
Frommeyer, G.; Brüx, U.: New Generation of High Strength and Ductility Steels. Material Innovative. Automobil-Forschung-Energietechnik, Bayreuth, Germany (2006)
Frommeyer, G.: Sind Legierungen der intermetallischen Phasen TiAl und NiAl zukünftige Strukturwerkstoffe? Wissensforum: Neuartige hochwarmfeste Werkstoffe, Düsseldorf, Germany (2006)
Frommeyer, G.: Microstructure and mechanical properties of high-strength and supraductile manganese-aluminium lightweight TRIPLEX steels. 3rd Discussion Meeting on the Development of Innovative Iron Aluminium Alloys, Mettmann, Germany (2006)
Frommeyer, G.; Gnauk, J.; Frech, W.: Wire casting and in-rotating-liquid-spinning processes for the continuous production of wires and high strength and soft magnetic fibres. 12th ISIJ-VDEh Seminar, Kitakyushu, Japan (2005)
Frommeyer, G.; Gnauk, J.; Frech, W.: Wire casting and in-rotating-liquid-spinning processes for the continuous production of wires and high strength and soft magnetic fibres. ISIJ-VDEh Deutsch-Japanisches Seminar, Fukuoka, Japan (2005)
Frommeyer, G.: Novel aspects in the Development of High-Strength and Supraductile Steels. BusinessForum21-Konferenz: Leichtbau im Automobil, München, Germany (2005)
Frommeyer, G.; Hofmann, H.; Löhr, J.: Superplasticity and Superplastic Forming at Higher Strain Rates of the Super Duplex Stainless Steel Fe–25Cr–7Ni–3Mo–0.3N. EURO SPF 05, Manchester, UK (2005)
Frommeyer, G.; Rosenkranz, R.: Structures and Properties of the Refractory Silicides Ti5Si3 and TiSi2. Spring-Meeting of the German Physical Society, Berlin, Germany (2005)
Stein, F.; Frommeyer, G.: Untersuchung des Erstarrungsgefüges einer unter Schwerelosigkeit erschmolzenen intermetallischen TiAl-Legierung. Workshop "Entwicklung der Basis - Erkennen der Perspektiven", Materialwissenschaften und mg-Forschung, MPI für Eisenforschung, Düsseldorf, Germany (2005)
Frommeyer, G.; Brüx, U.; Grässel, O.: Entwicklung hochfester, supraduktiler und crashresistenter Leichtbaustähle für die Verkehrstechnik. Philip Morris Stiftung, Hearing 2005, München, Germany (2005)
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…
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…
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.
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
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.
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…