Simultaneous X-ray radioscopy/tomography and energy-dispersive diffraction applied to liquid aluminium alloy foams.

Simultaneous X-ray radioscopy/tomography and energy-dispersive diffraction applied to liquid aluminium alloy foams.
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同步 X 射线透视/断层扫描和能量色散衍射应用于液态铝合金泡沫

DOI:
10.1107/s1600577518011657
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发表时间:
2018
影响因子:
2.5
通讯作者:
F. García-Moreno
F. García-Moreno
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
C. Jiménez;M. Plaepow;P.H. Kamm;T. Neu;M. Klaus;G. Wagener;J. Banhart;C. Genzel;F. García-Moreno

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在同步辐射源 BESSY II 的新实验装置中,二维(放射线检查)和三维(断层摄影)的高速 X 射线成像与快速 X 射线衍射相结合。它允许对复杂系统中的时间相关现象进行原位研究。作为首次应用,我们通过三个不同的实验研究了铝合金的发泡过程。在第一个实验中,使用射线检查、光学膨胀测量和衍射将泡沫形态的变化与将 AlMg15Cu10 合金加热至 620°C 期间形成的各个相相关联。然后放射线检查被断层扫描取代。采集 2 Hz 的断层图和衍射数据可以捕获泡沫演化的更多细节,例如气泡尺寸分布。在第三个实验中,4 Hz 断层扫描可以动态洞察不断演变的金属泡沫中的快速现象。
High-speed X-ray imaging in two dimensions (radioscopy) and three dimensions (tomography) is combined with fast X-ray diffraction in a new experimental setup at the synchrotron radiation source BESSY II. It allows for in situ studies of time-dependent phenomena in complex systems. As a first application, the foaming process of an aluminium alloy was studied in three different experiments. Radioscopy, optical expansion measurements and diffraction were used to correlate the change of foam morphology to the various phases formed during heating of an AlMg15Cu10 alloy to 620°C in the first experiment. Radioscopy was then replaced by tomography. Acquiring tomograms and diffraction data at 2 Hz allows even more details of foam evolution to be captured, for example, bubble size distribution. In a third experiment, 4 Hz tomography yields dynamic insights into fast phenomena in evolving metal foam.
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