Calcagnotto, M.; Ponge, D.; Adachi, Y.; Raabe, D.: Effect of grain refinement to 1 µm on deformation and fracture mechanisms in ferrite/martensite dual-phase steels. 2nd International Conference on Super-High Strength Steels SHSS, Peschiera del Garda, Italy (2010)
Dmitrieva, O.; Choi, P.; Ponge, D.; Raabe, D.; Gerstl, S. S. A.: Laser-pulsed atom probe studies of a complex maraging steel: Laser pulse energy variation and precipitate analysis. 52nd International Field Emission Symposium IFES 2010, Sydney, Australia (2010)
Ponge, D.; Raabe, D.: Nano-particles and filaments in steels: From understanding to materials design. 52nd International Field Emission Symposium IFES 2010, Sydney, Australia (2010)
Herrera, C.; Ponge, D.; Raabe, D.: Development of a high ductile lean duplex stainless steel. 2nd International Conference on Super-High Strength Steels SHSS, Peschiera del Garda, Italy (2009)
Calcagnotto, M.; Ponge, D.; Raabe, D.: Effect of grain refinement to 1µm on the mechanical properties of dual-phase steels. European Congress and Exhibition on Advanced Materials and Processes (EUROMAT 2009), Glasgow, UK (2009)
Herrera, C.; Ponge, D.; Raabe, D.: Hot workability of 1.4362 duplex stainless steel. Euromat 2009 (European Congress and Exhibition on Advanced Materials and Processes), Glasgow, Scotland, UK (2009)
Calcagnotto, M.; Ponge, D.; Demir, E.; Raabe, D.; Zaefferer, S.: 3D-EBSD Investigation on Orientation Gradients and Geometrically Necessary Dislocations Induced by the Martensitic Phase Transformation in Ultrafine Grained Dual-Phase Steels. Interdisciplinary Symposium on 3D Microscopy, Interlaken, Switzerland (2009)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
In this project we investigate the hydrogen distribution and desorption behavior in an electrochemically hydrogen-charged binary Ni-Nb model alloy. The aim is to study the role of the delta phase in hydrogen embrittlement of the Ni-base alloy 718.
Smaller is stronger” is well known in micromechanics, but the properties far from the quasi-static regime and the nominal temperatures remain unexplored. This research will bridge this gap on how materials behave under the extreme conditions of strain rate and temperature, to enhance fundamental understanding of their deformation mechanisms. The…
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.