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Full Record for Micrograph 525
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- Micrograph no
- 525
- Brief description
- Phosphor bronze exhibiting cored dendrites.
- Keywords
- alloy
, bronze , copper, coring , dendrite , metal, tin - Categories
- Metal or alloy
- System
- Cu-Sn
- Composition
- Cu 90, Sn 10 (wt%) + P trace
- Standard codes
- Reaction
- Processing
- Chill cast
- Applications
- Sample preparation
- Ferric chloride
- Technique
- Reflected light microscopy
- Length bar
- 100 μm
- Further information
- The microstructures consists of cored dendrites of a phase (brown). The coring causes the concentration of tin in the liquid to increase. Thus instead of solidifying to pure a, the liquid transforms to a and b. The b transforms to a and g and subsequently the g transforms to a and d giving the blueish region. Alloys such as this sometimes exhibit "tin sweat", which is a traditional name given to segregation in Cu-Sn alloys.
- Contributor
- Dr R F Cochrane
- Organisation
- Department of Materials, University of Leeds
- Date
- 04/09/02
- Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales- Related micrographs