Investigating the interaction between SiC nanowhiskers and alpha-Mg dendrites during solidification via time resolved in situ X-Ray tomograp
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https://doi.esrf.fr/10.15151/ESRF-ES-1998133293
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资源简介:
SiC has long been the most widely recognised reinforcement for magnesium matrix composites (MgMC), yet the grain refinement mechanisms of SiC nanowhiskers (SiCnw) are still not fully understood. No direct observations of nanoparticles interacting with Mg dendrites have yet been documented. This study intends to conduct in-situ solidification experiments on MgMC using X-ray tomography at the ID19 beamline, observing the effects of SiCnw (diameter 650 nm, length 5 μm) on the nucleation and dendritic growth evolution of alpha-Mg grains. Subsequently, solidified samples will be scanned using diffraction contrast tomography (DCT) at the ID11 beamline to study the crystallographic orientation relationships between SiCnw, T2-Al2MgC2 phase and alpha-Mg. The experimental data will also be integrated with numerical simulations of grain growth, offering substantial insights into the study of the grain refining mechanism of SiCnw on Mg.
提供机构:
Old Royal Naval College, School of Computing & Mathematical Sciences, Park Row, London, Se10 9ls Greenwich, United Kingdom; Paul Scherrer Institute, Swiss Light Source/TOMCAT, 5232 VILLIGEN, Switzerland; Imperial College London, Department of Materials, South Kensington Campus Exhibition Road, SW7 2AZ, London, GB; University of Greenwich, Old Royal Naval College, Park Row, Se10 9ls Greenwich, United Kingdom; University of Greenwich, Centre for Numerical Modelling, Park Row, Greenwich, Se10 9ls London, United Kingdom; Imperial College London, Department of Aeronautics, South Kensington Campus, SW7 2AZ, London, GB; Imperial College London, Department of Aeronautics, South Kensington Campus, Sw7 2az London, United Kingdom; Imperial College London, Prince Consort Road, SW7 2BZ, London, GB
创建时间:
2028-01-01



