Micrograph 662 and full record
- Micrograph no
- 662
- Brief description
- Al-4 wt% Cu, over aged alloy
- Keywords
- aged , alloy , aluminium , copper, hardening , heat treatment , metal, quenching , vacancy
- Categories
- Metal or alloy
- System
- Al-Cu
- Composition
- Al 96, Cu 4 (wt%)
- Standard codes
- Reaction
- Processing
- Over aged
- Applications
- Sample preparation
- Technique
- Reflected light microscopy
- Length bar
- 20 μm
- Further information
- Prolonged heat treatment above 150ºdegC to 200ºdegC has led to the evolution of the stable CuAl2 phase (q). The CuAl2 phase is visible at high magnifications. It does not contribute to the strength of the alloy and the over aged aluminium has poor mechanical properties.
- Contributor
- Dr J Marrow
- Organisation
- Department of Materials Science, University of Manchester and UMIST
- Date
- 07/11/02
- Licence for re-use
- Attribution-NonCommercial-ShareAlike 4.0 International
- Related micrographs
View image alone .. in a new window
Help is available on downloading images