A5083126268- Nuclear Materials and Properties
- Fusion materials and technologies
- Nuclear reactor physics and engineering
- Advanced X-ray Imaging Techniques
- Crystallography and Radiation Phenomena
- Microstructure and Mechanical Properties of Steels
- Astrophysical Phenomena and Observations
- Thermodynamic and Structural Properties of Metals and Alloys
- Surface Modification and Superhydrophobicity
- Innovative Microfluidic and Catalytic Techniques Innovation
- Particle Accelerators and Free-Electron Lasers
- High Temperature Alloys and Creep
- Advanced Materials Characterization Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Particle Detector Development and Performance
- Hydrogen embrittlement and corrosion behaviors in metals
- Nanomaterials and Printing Technologies
- Superconducting Materials and Applications
University of Oxford
2022-2024
Tsinghua University
2022
T91 steel is a candidate material for structural components in lead-bismuth-eutectic (LBE) cooled systems, example fast reactors and solar power plants [1]. However, the corrosion mechanisms of LBE remain poorly understood. In this study, we have analysed static liquid using range characterisation techniques at increasingly smaller scales. A unique pattern metal intrusion was observed that does not appear to correlate with grain boundary network. Upon closer inspection, electron backscatter...
T91 samples were exposed to static liquid lead-bismuth eutectic (LBE) at 700-715°C for 250-500 hours in either an oxidising or reducing environment. Corrosion damage was characterised using electron microscopy techniques, which identified networks of LBE intrusion beneath LBE-wetted surfaces. Under conditions these are uniformly distributed, while they appear patchier and deeper under conditions. The individual intrusions preferentially follow microstructural features, initially along...
Bragg coherent X-ray diffraction imaging (BCDI) allows the 3D measurement of lattice strain along scattering vector for specific microcrystals. If at least three linearly independent reflections are measured, variation full tensor within microcrystal can be recovered. However, this requires knowledge crystal orientation, which is typically attained via estimates based on geometry or synchrotron microbeam Laue measurements. Presented here an alternative method to determine orientation BCDI...
T91 samples were exposed to static liquid lead-bismuth eutectic (LBE) at 700{\deg}C for 250-500 hours in either an oxidising or reducing environment. Corrosion damage was characterised using electron microscopy techniques, which identified networks of LBE intrusion beneath LBE-wetted surfaces. Under conditions these are uniformly distributed, while they appear patchier and deeper under conditions. The individual intrusions preferentially follow microstructural features, initially along...
Ferritic/martensitic steels will be used as structural components in next generation nuclear reactors. Their successful operation relies on an understanding of irradiation-induced defect behaviour the material. In this study, Fe and FeCr alloys (3-12%Cr) were irradiated with 20 MeV Fe-ions at 313 K to doses ranging between 0.00008 dpa 6.0 dpa. This dose range covers six orders magnitude, spanning low, transition high regimes. Lattice strain hardness material characterised micro-beam Laue...