MEMS-Based in situ electron-microscopy investigation of rapid solidification and heat treatment on eutectic Al-Cu
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Authors
Organisational units
External Organisational units
- Erich Schmid Institute of Materials Science
- Los Alamos National Laboratory
Abstract
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.
Details
Original language | English |
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Article number | 118225 |
Number of pages | 9 |
Journal | Acta Materialia |
Volume | 239.2022 |
Issue number | 15 October |
Early online date | 3 Aug 2022 |
DOIs | |
Publication status | Published - 15 Oct 2022 |