Marx, V. M.; Kirchlechner, C.; Cordill, M. J.; Dehm, G.: Film thickness effects on the deformation behavior of Cu/Cr thin films on polyimide. TMS 2014: 143rd Annual Meeting & Exhibition, San Diego, CA, USA (2014)
Dehm, G.: Shedding light on the role of interfaces for strengthening materials by using micromechanical testing. 60. Metallkunde-Jubiläumskolloquium, Lech am Arlberg, Germany (2014)
Dehm, G.: Cu–Cr nanocomposites and multilayers. Gordon Research Conference: Thin Film & Small Scale Mechanical Behavior, Bentley University, Boston, MA, USA (2014)
Dehm, G.: Localized mechanical study of individual interfaces in miniaturized Cu structures. MS&T14 - Materials Science & Technology 2014, Pittsburgh, PA, USA (2014)
Imrich, P. J.; Kirchlechner, C.; Motz, C.; Jeon, J. B.; Dehm, G.: In Situ Electron Microscopy and Micro-Laue Study of Plasticity in Miniaturized Cu Bicrystals. CAMTEC III, Symposium on Fine-Scale Mechanical Characterisation and Behaviour , Cambridge, UK (2014)
Kirchlechner, C.; Imrich, P. J.; Motz, C.; Dehm, G.: Plastic deformation of bi-crystalline micro pillars analyzed by in situ µLaue diffraction. TMS2014, Annual Meeting & Exhibition, San Diego, CA, USA (2014)
Pizzagalli, L.; Dehm, G.; Thomas, O.: Structure and dynamics V: Mechanical properties at small scales. Condensed Matter in Paris: Mini-colloquium 32, Paris, France (2014)
Dehm, G.: From idealized bi-crystals towards applied polycrystals: Plastic deformation in small dimensions. 2013 MRS Fall Meeting, Boston, MA, USA (2013)
Dehm, G.: Structure and Micromechanics of Materials. Materialwissenschaftliches Kolloquium ICAMS und Institut für Werkstoffe, RUB, Bochum, Germany (2013)
Dehm, G.: Probing deformation phenomena at small length scales. ECI on Nanomechanical Testing in Materials Research and Development IV, Olhão, Portugal (2013)
Magnetic properties of magnetocaloric materials is of utmost importance for their functional applications. In this project, we study the magnetic properties of different materials with the final goal to discover new magnetocaloric materials more suited for practical applications.
In this project, we work on a generic solution to design advanced high-entropy alloys (HEAs) with enhanced magnetic properties. By overturning the concept of stabilizing solid solutions in HEAs, we propose to render the massive solid solutions metastable and trigger spinodal decomposition. The motivation for starting from the HEA for this approach…
This study investigates the mechanical properties of liquid-encapsulated metallic microstructures created using a localized electrodeposition method. By encapsulating liquid within the complex metal microstructures, we explore how the liquid influences compressive and vibrational characteristics, particularly under varying temperatures and strain…
We have studied a nanocrystalline AlCrCuFeNiZn high-entropy alloy synthesized by ball milling followed by hot compaction at 600°C for 15 min at 650 MPa. X-ray diffraction reveals that the mechanically alloyed powder consists of a solid-solution body-centered cubic (bcc) matrix containing 12 vol.% face-centered cubic (fcc) phase. After hot compaction, it consists of 60 vol.% bcc and 40 vol.% fcc. Composition analysis by atom probe tomography shows that the material is not a homogeneous fcc–bcc solid solution
Local lattice distortion is one of the core effects in complex concentrated alloys (CCAs). It has been expected that the strength CCAs can be improved by inducing larger local lattice distortions. In collaboration with experimentalists, we demonstrated that VCoNi has larger local lattice distortions and indeed has much better strength than the…
In this project, we work on the use of a combinatorial experimental approach to design advanced multicomponent multi-functional alloys with rapid alloy prototyping. We use rapid alloy prototyping to investigate five multicomponent Invar alloys with 5 at.% addition of Al, Cr, Cu, Mn and Si to a super Invar alloy (Fe63Ni32Co5; at.%), respectively…
The aim of the current study is to investigate electrochemical corrosion mechanisms by examining the metal-liquid nanointerfaces. To achieve this, corrosive fluids will be strategically trapped within metal structures using novel additive micro fabrication techniques. Subsequently, the nanointerfaces will be analyzed using cryo-atom probe…
In this project we pursue recent developments in the field of austenitic steels with up to 18% reduced mass density. The alloys are based on the Fe-Mn-Al-C system.