Full Record for Micrograph 5
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- Micrograph no
- 5
- Brief description
- Al 64, Cu 36 (wt%), hypereutectic alloy
- Keywords
- alloy , aluminium , copper, dendrite , hypereutectic , metal
- Categories
- Metal or alloy
- System
- Al-Cu
- Composition
- Al 64, Cu 36 (wt%)
- Standard codes
- Reaction
- Processing
- Sand cast
- Applications
- Sample preparation
- Etched in sodium hydroxide solution
- Technique
- Reflected light microscopy
- Length bar
- 400 μm
- Further information
- When the composition of the alloy exceeds the eutectic, as in this hypereutectic sample, the initial dendrites that form are of CuAl2. The remaining liquid transforms to the eutectic at the eutectic temperature.
- Contributor
- Prof T W Clyne
- Organisation
- Department of Materials Science and Metallurgy, University of Cambridge
- Date
- 25/10/01
- Licence for re-use
- Attribution-NonCommercial-ShareAlike 4.0 International