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Micrograph 608 and full record
- Micrograph no
- 608
- Brief description
- Channelling contrast TEM image of subgrains of extruded aluminium
- Keywords
- alloy
, aluminium , annealing , channelling contrast, elongation, extrusion , metal, stringers, subgrains - Categories
- Metal or alloy
- System
- Al
- Composition
- Commercial purity (99.5%)
- Standard codes
- Reaction
- N/A
- Processing
- Commercial purity (99.5%) aluminium has been extruded and then annealed for 3 hours at 450 degrees C
- Applications
- Sample preparation
- The sample has been thinned by electropolishing
- Technique
- Transmission electron microscopy (TEM)
- Length bar
- 600 nm
- Further information
- Fine subgrains can be resolved on the electropolished specimen due to channelling contrast where the intensity of backscattered electrons relates to the crystallographic planes, giving great sensitivity to orientation. The subgrain boundaries coincide with the stringers of fine oxide particles which have formed parallel to the extrusion direction (horizontal).
- Contributor
- Prof T W Clyne
- Organisation
- Department of Materials Science and Metallurgy, University of Cambridge
- Date
- 03/10/02
- Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales
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