3D Synchrotron Imaging of a Directionally Solidified Ternary Eutectic

被引:10
|
作者
Dennstedt, Anne [1 ]
Helfen, Lukas [2 ,3 ]
Steinmetz, Philipp [4 ]
Nestler, Britta [4 ]
Ratke, Lorenz [1 ]
机构
[1] Deutsch Zentrum Luft & Raumfahrt DLR, Inst Mat Phys Weltraum, D-51170 Cologne, Germany
[2] Karlsruhe Inst Technol, Lab Applicat Synchrotron Radiat, Inst Photon Sci & Synchrotron Radiat, ANKA, POB 3640, D-76021 Karlsruhe, Germany
[3] ESRF European Synchrotron, 71 Ave Martyrs, F-38000 Grenoble, France
[4] Karlsruhe Inst Technol, Inst Appl Mat Computat Mat Sci, D-76131 Karlsruhe, Germany
关键词
CU; SYSTEM;
D O I
10.1007/s11661-015-3294-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
For the first time, the microstructure of directionally solidified ternary eutectics is visualized in three dimensions, using a high-resolution technique of X-ray tomography at the ESRF. The microstructure characterization is conducted with a photon energy, allowing to clearly discriminate the three phases Ag2Al, Al2Cu, and alpha-Aluminum solid solution. The reconstructed images illustrate the three-dimensional arrangement of the phases. The Ag2Al lamellae perform splitting and merging as well as nucleation and disappearing events during directional solidification. (C) The Minerals, Metals & Materials Society and ASM International 2015
引用
收藏
页码:981 / 984
页数:4
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