Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Micrograph Library Full Record for Micrograph 53
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Full Record for Micrograph 53

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Micrograph no
53
Brief description
Cu 60, Zn 40 (wt%), quenched and held at 300°C - Widmanstätten microstructure
Keywords
alloy Link to MATTER Glossary entry for alloy, brass Link to MATTER Glossary entry for brass, copper, metal, quenching Link to MATTER Glossary entry for quenching, Widmanstätten Link to MATTER Glossary entry for Widmanstätten, zinc
Categories
Metal or alloy
System
Cu-Zn   Link to phase diagram
Composition
Cu 60, Zn 40 (wt%)
Standard codes
Reaction
Processing
Annealed, quenched and held for 1 hour at 300 C
Applications
Sample preparation
Technique
Scanning electron microscopy (SEM)
Length bar
15 μm
Further information
This sample was quenched and held at 300 ºC for one hour. It has a Widmanstätten microstructure with the α phase precipitating out of the single β phase during cooling to give α plates in a β matrix. The low temperature at which the transformation takes place leads to less diffusion and results in a finer structure.
Contributor
Prof T W Clyne
Organisation
Department of Materials Science and Metallurgy, University of Cambridge
Date
25/10/01
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales