Zaefferer, S.: 2D and 3D SEM-based electron diffraction techniques as central tools for correlative microscopy to obtain new insights into microstructure physics and chemistry. Kolloquium des Zentrums für Elektronenmikroskopie, online, Graz, Österreich (2021)
Zaefferer, S.: Towards understanding hydrogen embrittlement: Tools for microscopic and nanoscopic detection of hydrogen and its mechanical effects in microstructures of steels and superalloys. International e-Conference on Structural Materials for Nuclear and Space Applications (SNSA20), Mumbai, India (2020)
Zaefferer, S.: Investigations on microstructural reasons for Goss texture formation in GO electrical steels - a search for the needle in the haystack. 9th International Conference Magnetism and Metallurgy, Rome, Italy (2020)
Zaefferer, S.: Microstructure Characterization in 2D and 3D using Advanced SEM-based Electron Diffraction Techniques. IISC Colloquium, Bangalore, India (2020)
Zaefferer, S.: Electron Channelling Contrast Imaging (ECCI) – A Technique for Observation and Quantitative In-situ Characterization of Crystal Lattice Defects in Bulk Samples. 12th Asia-Pacific Microscopy Conference (APMC 2020), Hyderabad, India (2020)
Zaefferer, S.: Combination of 2D and 3D SEM-based diffraction techniques with various other techniques for understanding of microstructures. Workshop on correlative microscopy, Chennai, India (2020)
Zaefferer, S.: Microstructure Characterization in 2D and 3D using Advanced SEM-based Electron Diffraction Techniques. Chongqing University Colloquium, Chongqing, China (2019)
Zaefferer, S.: Microstructure Characterization in 2D and 3D using Advanced SEM-based Electron Diffraction Techniques. 3rd Materials Genome Engineering Forum, Kunming, China (2019)
Nandy, S.; Zaefferer, S.: On the role of Ca, Zn and Al for ductilization of Mg alloys. 27th International Conference on Materials and Technology (27 ICM&T), Portoroz, Slovenia (2019)
Zaefferer, S.: Measurement of local residual stresses using cross-correlation EBSD and ring core milling. 27th International Conference on Materials and Technology (26 ICM&T), Portoroz, Slovenia (2019)
Zaefferer, S.: Investigation on the effect of hydrogen on dislocation patterns in high-strength steels using electron channeling contrast imaging in the scanning electron microscope. 15th Multinational Congress on Microscopy, Belgrade, Serbia (2019)
Zaefferer, S.; An, D.: Hydrogen-induced embrittlement during fatigue loading of a high-Mn steel investigated by electron channelling contrast imaging (ECCI). Euromat 2019, Stockholm, Sweden (2019)
Zaefferer, S.; Shan, Y.; Madivala, M.: Nano-indentation and electron channeling contrast imaging (ECCI) to understand the interaction of hydrogen and dislocations in a high-Mn TWIP steel. Euromat 2019, Stockholm, Sweden (2019)
Zaefferer, S.: Understanding hydrogen-embrittlement during fatigue loading of a high-Mn-steel using ECCI and CC-EBSD. RMS-EBSD conference, London, UK (2019)
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.
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.
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 will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.