Barba, D.; Egan, A.; Utada, S.; Gong, Y.; Tang, Y. T.; Mazanova, V.; Mills, M. J.; Reed, R. C.: Deformation Mechanisms Rationalisation to Design for Creep Resistance in Polycrystalline Ni-Based Superalloys. Metallurgical and Materials Transactions A 54, pp. 1886 - 1901 (2023)
Li, Z.; Ram, F.; Zaefferer, S.; Raabe, D.; Reed, R. C.: Investigations of dislocation structures in a Ni-based single crystal superalloy using Electron Channeling Contrast Imaging (ECCI) and cross-correlation EBSD. RMS EBSD, Glasgow, Scotland, UK (2015)
Haghighat, S. M. H.; Li, Z.; Zaefferer, S.; Reed, R. C.; Raabe, D.: Mesoscale modeling of dislocation climb and primary creep process in single crystal Ni base superalloys. International Workshop on Dislocation Dynamics Simulations, Saclay, France (2014)
Haghighat, S. M. H.; Li, Z.; Zaefferer, S.; Reed, R. C.; Raabe, D.: Characterization and modeling of the propagation of creep dislocations from the interdendritic boundaries in single crystal Ni base superalloys. International Workshop on Modelling and Simulation of Superalloys, Bochum, Germany (2014)
Haghighat, S. M. H.; Reed, R. C.; Raabe, D.: Modeling of dislocation mechanisms and the influence of the γ/γ´lattice misfit on the dislocation assisted creep of high temperature Ni-base superalloys. 7th International Conference on Multiscale Materials Modeling , Berkeley, CA, USA (2014)
Zaefferer, S.; Zhu, Z.; Reed, R. C.: Observation of Dislocation Evolution during Straining of a γ-γ’ Superalloy Single Crystal using the CECCI technique. Eurosuperalloys 2014, Giens, France (2014)
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…
“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…
Hydrogen embrittlement (HE) of steel is a great challenge in engineering applications. However, the HE mechanisms are not fully understood. Conventional studies of HE are mostly based on post mortem observations of the microstructure evolution and those results can be misleading due to intermediate H diffusion. Therefore, experiments with a…
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.
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.
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.