von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of the Hydrogen enhanced local plasticity (HELP) mechanism. Asia Steel Conference 2009, Busan, South Korea (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of the Hydrogen-enhanced local plasticity mechanism (HELP). Fruehjahrstagung der Deutschen Physikalischen Gesellschaft 2009, Dresden, Germany (2009)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: A multiscale study of hydrogen embrittlement in metals: Revisitting the Hydrogen-enhanced local plasticity mechanism. APS March Meeting, Pittsburgh, PA, USA (2009)
Lymperakis, L.: Ab-initio based calculations: From semiconductors, to metals, and bio-inspired materials. Colloquium, Physics Department, University of Crete, Heraklion, Greece (2009)
Petrov, M.; Friák, M.; Lymperakis, L.; Neugebauer, J.; Raabe, D.: Ground-state structure and elastic anisotropy of crystalline alpha-chitin: An ab-initio based conformational analysis. Materials Research Society meeting (MRS), Boston, MA, USA (2008)
Lymperakis, L.; Neugebauer, J.: Ab initio study of Thermodynamics and adatom kinetics on non-polar GaN surfaces: Consequences on the growth morphology and the formation of nanowires. International Workshop on Nitride Semiconductors, Montreux, Switzerland (2008)
Lymperakis, L.; Neugebauer, J.: Growth simulations of non-polar GaN surfaces: Thermodynamics, kinetics and dopant incorporations. Bremen DFG Forschergruppe: Workshop in Riezlern, Reizlern, Austria (2008)
Lymperakis, L.; Neugebauer, J.: Thermodynamics and adatom kinetic on non-polar GaN surfaces: origin of a strong growth anisotropy. E-MRS Spring meeting, Strasbourg, France (2008)
Lymperakis, L.; Neugebauer, J.: Ab-initio based calculation of GaN surfaces, interfaces, and extended defects. Colloquium Paul-Drude-Institut Berlin, Berlin, Germany (2008)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
In this project, we employ atomistic computer simulations to study grain boundaries. Primarily, molecular dynamics simulations are used to explore their energetics and mobility in Cu- and Al-based systems in close collaboration with experimental works in the GB-CORRELATE project.
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.
In this ongoing project, we investigate spinodal fluctuations at crystal defects such as grain boundaries and dislocations in Fe-Mn alloys using atom probe tomography, electron microscopy and thermodynamic modeling [1,2].