Rao, J.; Lee, S.; Dehm, G.; Duarte, M. J.: Hardening effect of diffusible hydrogen on BCC Fe-based model alloys by in situ backside hydrogen charging. Materials and Design 232, 112143 (2023)
Patil, P.; Lee, S.; Dehm, G.; Brinckmann, S.: Influence of crystal orientation on twinning in austenitic stainless-steel during single micro-asperity tribology and nanoindentation. WEAR 504-505, 204403 (2022)
Utt, D.; Lee, S.; Stukowski, A.; Oh, S. H.; Dehm, G.; Albe, C.: Jerky motion of dislocations in high-entropy alloys: The linkage between local Peierls stress fluctuations and dislocation mobility. Condensed Matter: Materials Science, pp. 1 - 13 (2020)
Lee, S.; Duarte, M. J.; Soler, R.; Kirchlechner, C.; Liebscher, C.; Oh, S. H.; Dehm, G.: In-situ TEM Study of Dislocation Plasticity of a Single Crystal FeCoCrMnNi HEA. IAMNano 2018, The International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, Hamburg, Germany (2018)
Lee, S.; Liebscher, C.; Dehm, G.: In-situ TEM study on deformation behaviors of CrMnFeCoNi single crystal high entropy alloys. European Solid Mechanics Conference (ESMC) , Bologna, Italy (2018)
Lee, S.; Duarte, M. J.; Liebscher, C.; Oh, S. H.; Dehm, G.: Dislocation Plasticity in Single Crystal FeCrCoMnNi HEA by in-situ TEM Deformation. Schöntal Symposium - Dislocation based plasticity, Schöntal, Germany (2018)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
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…
In this project, we aim to enhance the mechanical properties of an equiatomic CoCrNi medium-entropy alloy (MEA) by interstitial alloying. Carbon and nitrogen with varying contents have been added into the face-centred cubic structured CoCrNi MEA.
This project with the acronym GB-CORRELATE is supported by an Advanced Grant for Gerhard Dehm by the European Research Council (ERC) and started in August 2018. The project GB-CORRELATE explores the presence and consequences of grain boundary phase transitions (often termed “complexions” in literature) in pure and alloyed Cu and Al. If grain size…
Hydrogen embrittlement remains a strong obstacle to the durability of high-strength structural materials, compromising their performance and longevity in critical engineering applications. Of particular relevance is the effect of mobile and trapped hydrogen at interfaces, such as grain and phase boundaries, since they often determine the material’s…