Strondl, A.; Fischer, R.; Frommeyer, G.; Schneider, A.: Investigations of MX and γ'/γ'' precipitates in the nickel-based superalloy 718 produced by electron beam melting. Materials Science and Engineering A 480, pp. 138 - 147 (2008)
Deges, J.; Fischer, R.; Frommeyer, G.; Schneider, A.: Atom probe field ion microscopy investigations on the intermetallic Ni49.5Al49.5Re1 alloy. Surface and Interface Analysis 36, pp. 533 - 539 (2004)
Rablbauer, R.; Fischer, R.; Frommeyer, G.: Mechnical properties of NiAl–Cr alloys in relation to microstructure and atomic defects. Zeitschrift für Metallkunde 95 (6), pp. 525 - 534 (2004)
Fischer, R.; Frommeyer, G.; Schneider, A.: APFIM investigations on site preferences, superdislocations, and antiphase boundaries in NiAl(Cr) with B2 superlattice structure. Materials Science and Engineering A 353, pp. 87 - 91 (2003)
Fischer, R.; Frommeyer, G.; Schneider, A.: Chromium precipitation in B2-ordered NiAl-2at% Cr alloys investigated by atom probe field ion microscopy. Materials Science and Engineering A 327, pp. 47 - 53 (2002)
Frommeyer, G.; Rablbauer, R.; Fischer, R.; Deges, J.: Properties of Refractory NiAl-based Alloys in Relation to Atomic Defects and Microstructures. International Conference on Processing, Manufacturing of Advanced Materials -Thermec 2009, Berlin, Germany (2009)
Frommeyer, G.; Rablbauer, R.; Fischer, R.: Properties of refractory NiAl(Cr, Mo, Re) alloys in relation to atomic defects and microstructures. TMS 2007 Annual Meeting, Orlando, FL, USA (2007)
Fischer, R.: Strukturelle Charakterisierung auf atomarer Skala von unlegiertem und chromhaltigem NiAl mit B2-Überstrukturgitter mit der Atomsonden-Feldionenmikroskopie. Dissertation, Technische Universtität Clausthal, Clausthal, 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…
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.
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.
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…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
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,...
Understanding hydrogen-assisted embrittlement of advanced high-strength steels is decisive for their application in automotive industry. Ab initio simulations have been employed in studying the hydrogen trapping of Cr/Mn containing iron carbides and the implication for hydrogen embrittlement.
Within this project, we will investigate the micromechanical properties of STO materials with low and higher content of dislocations at a wide range of strain rates (0.001/s-1000/s). Oxide ceramics have increasing importance as superconductors and their dislocation-based electrical functionalities that will affect these electrical properties. Hence…