MEMS-based in situ Electron-Microscopy Investigation of Rapid Solidification and Heat Treatment on Eutectic Al-Cu
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External Organisational units
- Erich Schmid Institute of Materials Science
- Los Alamos National Laboratory
The solidification behavior of a eutectic AlCu specimen is investigated via in situ scanning transmission electron microscope (STEM) experiments. Solidification conditions are varied by imposing various cooling conditions via a micro-electro-mechanical system (MEMS) based membrane. The methodology allows the use of material processed by a melting and casting route close to industrial metallurgically fabricated ma- terial for in situ STEM solidification studies. Different rapid solidification morphologies could be obtained solely on a single specimen by the demonstrated strategy. Additional post-solidification heat treatments are investigated in terms of observation of spheroidization of lamellas during annealing at elevated tem- peratures.
|Number of pages||9|
|Publication status||Published - 3 Aug 2022|