Du, Y. J. A.; Ismer, L.; Rogal, J.; Hickel, T.; Neugebauer, J.; Drautz, R.: First-principles study on the interaction of H interstitials with grain boundaries in alpha- and gamma-Fe. Physical Review B 84 (14), pp. 144121-1 - 144121-13 (2011)
Dick, A.; Körmann, F.; Hickel, T.; Neugebauer, J.: Ab initio based determination of thermodynamic properties of cementite including vibronic, magnetic and electronic excitations. Physical Review B 84 (12), 125101 (2011)
Ismer, L.; Ireta, J.; Neugebauer, J.: A density functional theory based estimation of the anharmonic contributions to the free energy of a polypeptide helix. Journal of Chemical Physics 135 (8), pp. 084122-1 - 084122-7 (2011)
Marquardt, O.; Hickel, T.; Neugebauer, J.; Gambaryan, K. M.; Aroutiounian, V. M.: Growth process, characterization, and modeling of electronic properties of coupled InAsSbP nanostructures. Journal of Applied Physics 110 (4), pp. 043708-1 - 043708-6 (2011)
Grabowski, B.; Hickel, T.; Neugebauer, J.: Formation energies of point defects at finite temperatures. Physica Status Solidi B 248 (6), pp. 1295 - 1308 (2011)
Pfanner, G.; Freysoldt, C.; Neugebauer, J.: Ab initio study of electron paramagnetic resonance hyperfine structure of the silicon dangling bond: Role of the local environment. Physical Review B 83 (14), 144110, pp. 1 - 8 (2011)
Körmann, F.; Dick, A.; Hickel, T.; Neugebauer, J.: Role of spin quantization in determining the thermodynamic properties of magnetic transition metals. Physical Review B 83 (16), 165114 (2011)
von Pezold, J.; Lymperakis, L.; Neugebauer, J.: Hydrogen-enhanced plasticity at dilute bulk H concentrations: The role of H-H interactions and the formation of local hydrides. Acta Materialia 59, pp. 2969 - 2980 (2011)
Abbasi, A.; Dick, A.; Hickel, T.; Neugebauer, J.: First-principles investigation of the effect of carbon on the stacking fault energy of Fe–C alloys. Acta Materialia 59, pp. 3041 - 3048 (2011)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
The aim of this project is to correlate the point defect structure of Fe1-xO to its mechanical, electrical and catalytic properties. Systematic stoichiometric variation of magnetron-sputtered Fe1-xO thin films are investigated regarding structural analysis by transition electron microscopy (TEM) and spectroscopy methods, which can reveal the defect…
Hydrogen embrittlement (HE) is one of the most dangerous embrittlement problems in metallic materials and advanced high-strength steels (AHSS) are particularly prone to HE with the presence of only a few parts-per-million of H. However, the HE mechanisms in these materials remain elusive, especially for the lightweight steels where the composition…
Conventional alloy development methodologies which specify a single base element and several alloying elements have been unable to introduce new alloys at an acceptable rate for the increasingly specialised application requirements of modern technologies. An alternative alloy development strategy searches the previously unexplored central regions…
The key to the design and construction of advanced materials with tailored mechanical properties is nano- and micro-scale plasticity. Significant influence also exists in shaping the mechanical behavior of materials on small length scales.