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

DoITPoMS Micrograph Library Full Record for Micrograph 379

Full Record for Micrograph 379

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Micrograph no
379
Brief description
Grey cast iron with significant Si content
Keywords
alloy Link to MATTER Glossary entry for alloy, carbon, grey cast iron Link to MATTER Glossary entry for grey cast iron, iron, metal
Categories
Metal or alloy
System
Fe-C-X   Link to phase diagram
Composition
Fe, C 3.52, Si 3.26, Mn 0.47 (wt%) (Grey cast iron)
Standard codes
Reaction
Processing
Sand cast
Applications
Sample preparation
Nital
Technique
Reflected light microscopy
Length bar
200 μm
Further information
The addition of a substantial amount of silicon to a relatively low carbon cast iron serves to induce the cementite to transform to ferrite and graphite flakes. This results in the properties of the resultant metal being more similar to that of grey cast iron, i.e. making it easier to machine and improving wear resistance.
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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