Imaging fast processes in liquid metal foams and semi-solid alloys using synchrotron radioscopy with spatio-temporal micro-resolution

S. Zabler, A. Rack, F. García-Moreno, A. Ershov, T. Baumbach, J. Banhart

    Результат исследований: Материалы для книги/типы отчетовГлава

    2 Цитирования (Scopus)

    Аннотация

    New X-ray sources of unmatched brilliance, like the superconducting undulator device at ESRF high-energy beamline ID15A, allow for micro-radioscopic investigations with time-resolution up to the micro-second range. Here we present first results of two recent in situ experiments: the visualization of semi-solid metal flow at an acquisition speed 500 frames/s (fps) and the collapse of pore walls in liquid metallic foams investigated at 40,000 fps. Both applications reveal important qualitative and quantitative facts about the dynamic processes in liquid and/or semi-solid metals which were inaccessible until now because of either the limited spatial and/or the limited time-resolution of conventional X-ray devices. Thus, semi-solid slurry is observed to break into small particle clusters when injected at high speed. The event of cell wall collapse in metal foams is found to take ~1-2 ms time, indicating that the dynamics of this system is inertia controlled.

    Язык оригиналаАнглийский
    Название основной публикацииIn-situ Studies with Photons, Neutrons and Electrons Scattering
    ИздательSpringer Berlin Heidelberg
    Страницы149-158
    Число страниц10
    ISBN (печатное издание)9783642147937
    DOI
    СостояниеОпубликовано - 2010

    ASJC Scopus subject areas

    • Materials Science(all)
    • Chemistry(all)

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  • Цитировать

    Zabler, S., Rack, A., García-Moreno, F., Ershov, A., Baumbach, T., & Banhart, J. (2010). Imaging fast processes in liquid metal foams and semi-solid alloys using synchrotron radioscopy with spatio-temporal micro-resolution. В In-situ Studies with Photons, Neutrons and Electrons Scattering (стр. 149-158). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-14794-4_10