Sözen, H. I.; Ener, S.; Maccari, F.; Fayyazi, B.; Gutfleisch, O.; Neugebauer, J.; Hickel, T.: Combined ab initio and experimental screening of phase stabilities in the Ce–Fe–Ti–X system (X=3d and 4d metals). Physical Review Materials 7 (1), 014410 (2023)
Pierce, D.T.; Benzing, J. T.; Jiménez, J. A.; Hickel, T.; Bleskov, I.; Keum, J. K.; Raabe, D.; Wittig, J., J. E.: The influence of temperature on the strain-hardening behavior of Fe–22/25/28Mn–3Al–3Si TRIP/TWIP steels. Materialia 22, 101425 (2022)
Mendive-Tapia, E.; Neugebauer, J.; Hickel, T.: Ab initio calculation of the magnetic Gibbs free energy of materials using magnetically constrained supercells. Physical Review B 105 (16), 064425 (2022)
Sreekala, L.; Dey, P.; Hickel, T.; Neugebauer, J.: Unveiling nonmonotonic chemical trends in the solubility of H in complex Fe–Cr–Mn carbides by means of ab initio based approaches. Physical Review Materials 6 (1), 014403 (2022)
Schneider, A.; Fu, C.-C.; Waseda, O.; Barreteau, C.; Hickel, T.: Ab initio based models for temperature-dependent magnetochemical interplay in bcc Fe–Mn alloys. Physical Review B 103 (2), 024421 (2021)
Lochner, F.; Eremin, I. M.; Hickel, T.; Neugebauer, J.: Ab initio study of the structural response to magnetic disorder and van der Waals interactions in FeSe. Physical Review B 103 (5), 054506 (2021)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
The full potential of energy materials can only be exploited if the interplay between mechanics and chemistry at the interfaces is well known. This leads to more sustainable and efficient energy solutions.
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.
This project deals with the phase quantification by nanoindentation and electron back scattered diffraction (EBSD), as well as a detailed analysis of the micromechanical compression behaviour, to understand deformation processes within an industrial produced complex bainitic microstructure.
Within this project, we will use an infra-red laser beam source based selective powder melting to fabricate copper alloy (CuCrZr) architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional CuCrZr alloy lattice architectures, under both quasi-static and dynamic loading…