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Title: Characterization of Ultrasonic Bubble Clouds in A Liquid Metal by Synchrotron X-ray High Speed Imaging and Statistical Analysis
Authors: Wang, C
Connolley, T
Tzanakis, I
Eskin, D
Mi, J
Keywords: Ultrasonic bubble clouds;Synchrotron X-ray imaging;Metal solidification;Ultrasound melt processing
Issue Date: 20-Dec-2019
Publisher: MDPI
Citation: Materials, 2019, 2020 (13), pp. 44 - 44 (12)
Abstract: Quantitative understanding of the interactions of ultrasonic waves with liquid and solidifying metals is essential for developing optimal processing strategies for ultrasound processing of metal alloys in the solidification processes. In this research, we used the synchrotron X-ray high-speed imaging facility at Beamline I12 of the Diamond Light Source, UK to study the dynamics of ultrasonic bubbles in a liquid Sn-30wt%Cu alloy. A new method based on the X-ray attenuation for a white X-ray beam was developed to extract quantitative information about the bubble clouds in the chaotic and quasi-static cavitation regions. Statistical analyses were made on the bubble size distribution, and velocity distribution. Such rich statistical data provide more quantitative information about the characteristics of ultrasonic bubble clouds and cavitation in opaque, high-temperature liquid metals
ISSN: 1996-1944
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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