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Micrograph 215 and full record

Link to image file for micrograph 215
Micrograph no
215
Brief description
Normalised carbon steel
Keywords
alloy Link to MATTER Glossary entry for alloy, carbon, eutectoid reaction Link to MATTER Glossary entry for eutectoid reaction, iron, metal, pearlite Link to MATTER Glossary entry for pearlite, steel Link to MATTER Glossary entry for steel
Categories
Metal or alloy
System
Fe-C-X   Link to phase diagram
Composition
Fe, C 0.08 (wt%)
Standard codes
Reaction
Processing
Normalised
Applications
Sample preparation
Nital
Technique
Reflected light microscopy
Length bar
400 μm
Further information
Low carbon steel with a microstructure consisting mostly of ferrite with the darker pearlite regions around the ferrite grains. Upon cooling the steel the ferrite forms initially, either on austenite grain boundaries or inclusions. This causes carbon to be partitioned into the austenite. Eventually the remaining austenite will be at the eutectoid condition and the transformation to pearlite will then take place. Micrograph was taken transverse to direction of casting, therefore no directionality is seen.
Contributor
Dr R F Cochrane
Organisation
Department of Materials, University of Leeds
Date
04/09/02
Licence for re-use
Attribution-NonCommercial-ShareAlike 4.0 International
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