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Full Record for Micrograph 474

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Micrograph no
474
Brief description
Cu 50, Zn 50 (wt%) brass, chill cast
Keywords
alloy Link to MATTER Glossary entry for alloy, brass Link to MATTER Glossary entry for brass, copper, metal, zinc
Categories
Metal or alloy
System
Cu-Zn   Link to phase diagram
Composition
Cu 50, Zn 50 (wt%)
Standard codes
Reaction
Processing
Chill cast
Applications
Sample preparation
Ammonium persulphate
Technique
Reflected light microscopy
Length bar
100 μm
Further information
Brasses with greater than 40% zinc usually consist of b primary dendrites surrounded by a phase. The lack of such a microstructure in this sample indicates that the cooling rate during casting was sufficiently rapid that dendrites were unable to form and consequently the microstructure consists entirely of b phase.
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
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