Duarte, M. J.; Fang, X.; Brinckmann, S.; Dehm, G.: Hydrogen-microstructure interactions in bcc FeCr alloys by in-situ nanoindentation. ECI, Nanomechanical Testing in Materials Research and Development VI, Dubrovnik, Croatia (2017)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Micropillar Compression of Hexagonal and Cubic NbCo2 Laves Phases. Nanomechanical Testing in Materials Research and Development VI, Dubrovnik, Croatia (2017)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: Deformation of Micropillars of Cubic and Hexagonal NbCo2 Laves Phases under Uniaxial Compression at Room Temperature. Intermetallics 2017, Educational Center Kloster Banz, Bad Staffelstein, Germany (2017)
Arigela, V. G.; Kirchlechner, C.; Dehm, G.: Setup of a microscale high temperature loading rig for micro-fracture mechanics. GRi Mecano General meeting, Toulouse, France (2017)
Arigela, V. G.; Kirchlechner, C.; Janisch, R.; Hartmaier, A.; Dehm, G.: Setup of a microscale fracture apparatus to study the interface behaviour in materials at high temperatures. Materials Day 2016, Ruhr Universitat Bochum, Bochum, Germany (2016)
Malyar, N.; Micha, J.-S.; Dehm, G.; Kirchlechner, C.: Dislocation slip transfer at Cu grain boundaries analyzed by µLaue diffraction. Gordon Research Seminar Thin Film & Small Scale Mechanical Behavior, Lewiston, ME, USA (2016)
Malyar, N.; Micha, J.-S.; Dehm, G.; Kirchlechner, C.: Dislocation slip transfer at Cu grain boundaries analyzed by µLaue diffraction. Gordon Research Conference Thin Film & Small Scale Mechanical Behavior, Best Poster Prize, Lewiston, ME, USA (2016)
Peter, N. J.; Kirchlechner, C.; Liebscher, C.; Dehm, G.: Effect of the atomistic grain boundary structure on dislocation interaction in copper. Gordon Research Conference (GRC) 2016, Thin Film & Small Scale Mechanical Behavior
, Lewiston, ME, USA (2016)
Luo, W.; Kirchlechner, C.; Dehm, G.; Stein, F.: A New Method to Study the Composition Dependence of Mechanical Properties of Intermetallic Phases. Int. Conf. The Materials Chain: From Discovery to Production, University Bochum, Bochum, Germany (2016)
Meiners, T.; Liebscher, C.; Dehm, G.: Atomic structure and segregation phenomena at copper grain boundaries. EMC2016, The 16th European Microscopy Congress, Lyon, France (2016)
Peter, N. J.; Kirchlechner, C.; Liebscher, C.; Dehm, G.: Beam induced atomic migration at Ag containing nanofacets at an asymmetric Cu grain boundary. European Microscopy Congress (EMC) 2016
, Lyon, France (2016)
Malyar, N.; Jaya, B. N.; Micha, J.-S.; Dehm, G.; Kirchlechner, C.: Orientation dependence of dislocation transmission through twin-boundaries studied by in situ μLaue diffraction. ECI - Nano- and Micromechanical Testing in Materials Research and Development V, Albufeira, Portugal (2015)
Hieke, S. W.; Dehm, G.; Scheu, C.: Electron microscopy investigation of solid state dewetted epitaxial Al thin films on sapphire. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices (IAMNano 2015), Hamburg, Germany (2015)
Hieke, S. W.; Dehm, G.; Scheu, C.: Investigation of solid state dewetting phenomena of epitaxial Al thin films on sapphire using electron microscopy. TEM-UCA: Transmission Electron Microscopy of Nanomaterials - European Summer Workshop (TEM-UCA 2015), Cádiz, Spain (2015)
Hodnik, N.; Dehm, G.; Mayrhofer, K. J. J.: Electrochemical water based in-situ TEM: case study of platinum based nanoparticles potential- and time-dependent changes. IAM Nano 2015 , Hamburg, Germany (2015)
Malyar, N.; Jaya, B. N.; Dehm, G.; Kirchlechner, C.: Dislocation transmission in bi-crystalline micro pillars studied by in situ SEM and in situ µLaue diffraction. Workshop „Understanding Grain Boundary Migration – Theory Meets Experiment”, Günzburg, Germany (2015)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
This project studies the influence of grain boundary chemistry on mechanical behaviour using state-of-the-art micromechanical testing systems. For this purpose, we use Cu-Ag as a model system and compare the mechanical response/deformation behaviour of pure Cu bicrystals to that of Ag segregated Cu bicrystals.
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
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.
Hydrogen is a clean energy source as its combustion yields only water and heat. However, as hydrogen prefers to accumulate in the concentrated stress region of metallic materials, a few ppm Hydrogen can already cause the unexpected sudden brittle failure, the so-called “hydrogen embrittlement”. The difficulties in directly tracking hydrogen limits…